Raspberry Pi Pico (RP2040) +polyfill

src/cpp11__cpp11__exceptions.cpp:8:60: error: exception handling disabled, use '-fexceptions' to enable
    8 | auto _test_cpp11__cpp11__exceptions() -> int { try { throw 42; } catch (int e) { return e - 42; } return 1; }
      |                                                            ^~
src/cpp11__cpp11__exceptions.cpp:8:89: error: 'e' was not declared in this scope
    8 | auto _test_cpp11__cpp11__exceptions() -> int { try { throw 42; } catch (int e) { return e - 42; } return 1; }
      |  

src/cpp11__cpp17__aggregate_bases.cpp:10:69: error: no matching function for call to 'Derived::Derived()'
   10 | auto _test_cpp11__cpp17__aggregate_bases() -> int { Derived d{{1}, 2}; return d.x + d.y - 3; }
      |                                                                     ^
    9 | struct Derived : Base { int y; };
      |        ^~~~~~~

src/cpp11__cpp17__deduction_guides.cpp:9:72: error: missing template arguments before '(' token
    9 | auto _test_cpp11__cpp17__deduction_guides() -> int { auto p = std::pair(1, 2.0); return p.first - 1; }
      |                                                                        ^

src/cpp11__cpp17__guaranteed_copy_elision.cpp:9:31: error: use of deleted function 'NoCopy::NoCopy(NoCopy&&)'
    9 | NoCopy make() { return NoCopy{}; }
      |                               ^
    8 | struct NoCopy { NoCopy() = default; NoCopy(const NoCopy&) = delete; NoCopy(NoCopy&&) = delete; };
      |                                                                     ^~~~~~
src/cpp11__cpp17__guaranteed_copy_elision.cpp:10:77: error: use of deleted function 'NoCopy::NoCopy(NoCopy&&)'
   10 |

src/cpp11__cpp17__noexcept_function_type.cpp:9:72: error: 'is_same_v' is not a member of 'std'; did you mean 'is_same'?
    9 | auto _test_cpp11__cpp17__noexcept_function_type() -> int { return std::is_same_v ? 1 : 0; }
      |                                                                        ^~~~~~~~~
      |                                                                        is_same
src/cpp11__cpp17__noexcept_function_type.cpp:9:88: error: expected ';' before '

src/cpp11__cpp17__nontype_template_args.cpp:9:12: error: non-type template parameters of class type only available with '-std=c++2a' or '-std=gnu++2a'
    9 | template constexpr int get() { return s.v; }
      |            ^
src/cpp11__cpp17__nontype_template_args.cpp:10:77: error: no matching function for call to 'get()'
   10 | auto _test_cpp11__cpp17__nontype_template_args() -> int { return get() - 42; }
      |                                                               

src/cpp11__cpp17__nontype_template_parameter_auto.cpp:8:15: error: 'auto' parameter not permitted in this context
    8 | template constexpr auto value = N;
      |               ^
    9 | auto _test_cpp11__cpp17__nontype_template_parameter_auto() -> int { return value<42> - 42; }
      |                                                                            ^~~~~~~~~

src/cpp11__cpp17__template_template_args.cpp:10:81: error: type/value mismatch at argument 1 in template parameter list for 'template class C, class T> struct Wrap'
   10 | auto _test_cpp11__cpp17__template_template_args() -> int { Wrap w; w.c.push_back(42); return w.c[0] - 42; }
      |                                                                                 ^
src/cpp11__cpp17__template_template_args.cpp:10:88: error: request for member 'c' in 'w', which

src/cpp11__cpp20__aggregate_paren_init.cpp:9:66: error: no matching function for call to 'S::S(int, int)'
    9 | auto _test_cpp11__cpp20__aggregate_paren_init() -> int { S s(1, 2); return s.x + s.y - 3; }
      |                                                                  ^
    8 | struct S { int x; int y; };
      |        ^

src/cpp11__cpp20__char8_t_lang.cpp:8:50: error: 'char8_t' was not declared in this scope; did you mean 'char16_t'?
    8 | auto _test_cpp11__cpp20__char8_t_lang() -> int { char8_t c = u8'A'; return c == u8'A' ? 0 : 1; }
      |                                                  ^~~~~~~
      |                                                  char16_t
src/cpp11__cpp20__char8_t_lang.cpp:8:76: error: 'c' was not declared in this scope
    8 | auto _test_cpp11__cpp20__char8_t_lang() -> int { char8_t c

src/cpp11__cpp20__concepts.cpp:8:10: fatal error: concepts: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp11__cpp20__conditional_explicit.cpp:9:33: warning: 'explicit(bool)' only available with '-std=c++2a' or '-std=gnu++2a'
    9 | struct S { template explicit(!std::is_same_v) S(T) {} };
      |                                 ^~~~~~~~
src/cpp11__cpp20__conditional_explicit.cpp:9:48: error: 'is_same_v' is not a member of 'std'; did you mean 'is_same'?
    9 | struct S { template explicit(!std::is_same_v) S(T) {} };
      |                              

src/cpp11__cpp20__consteval.cpp:8:1: error: 'consteval' does not name a type; did you mean 'constexpr'?
    8 | consteval int square(int x) { return x * x; }
      | ^~~~~~~~~
      | constexpr
src/cpp11__cpp20__consteval.cpp:11:25: error: 'square' was not declared in this scope
   11 |     constexpr int val = square(5);
      |                         ^~~~~~

src/cpp11__cpp20__constexpr_dynamic_alloc.cpp:8:40: error: call to non-'constexpr' function 'void* operator new(std::size_t)'
    8 | constexpr int f() { int* p = new int(42); int v = *p; delete p; return v; }
      |                                        ^
src/cpp11__cpp20__constexpr_dynamic_alloc.cpp:9:19: error: non-constant condition for static assertion
    9 | static_assert(f() == 42);
      |               ~~~~^~~~~
src/cpp11__cpp20__constexpr_dynamic_alloc.cpp:9:16: error: 'constexpr in

src/cpp11__cpp20__constinit.cpp:8:1: error: 'constinit' does not name a type; did you mean 'constrain'?
    8 | constinit int global_val = 42;
      | ^~~~~~~~~
      | constrain
src/cpp11__cpp20__constinit.cpp:11:12: error: 'global_val' was not declared in this scope
   11 |     return global_val - 42;
      |            ^~~~~~~~~~

src/cpp11__cpp20__impl_coroutine.cpp:11:10: fatal error: experimental/coroutine: No such file or directory
   11 | #include 
      |          ^~~~~~~~~~~~~~~~~~~~~~~~

src/cpp11__cpp20__impl_destroying_delete.cpp:9:58: error: 'std::destroying_delete_t' has not been declared
    9 | struct S { int v; static void operator delete(S* p, std::destroying_delete_t) { p->~S(); ::operator delete(p); } };
      |                                                          ^~~~~~~~~~~~~~~~~~~
src/cpp11__cpp20__impl_destroying_delete.cpp:9:31: error: 'operator delete' takes type 'void*' as first parameter
    9 | struct S { int v; static void operator delete(S* p, std::destr

src/cpp11__cpp20__impl_three_way_comparison.cpp:8:10: fatal error: compare: No such file or directory
    8 | #include 
      |          ^~~~~~~~~

src/cpp11__cpp20__using_enum.cpp:9:54: error: expected nested-name-specifier before 'enum'
    9 | auto _test_cpp11__cpp20__using_enum() -> int { using enum Color; return static_cast(Green) == 1 ? 0 : 1; }
      |                                                      ^~~~
src/cpp11__cpp20__using_enum.cpp:9:90: error: 'Green' was not declared in this scope; did you mean 'Color::Green'?
    9 | auto _test_cpp11__cpp20__using_enum() -> int { using enum Color; return static_cast(Green) == 1

src/cpp11__cpp23__auto_cast.cpp:8:66: error: invalid use of 'auto'
    8 | auto _test_cpp11__cpp23__auto_cast() -> int { int x = 42; auto y = auto(x); return y - 42; }
      |                                                                  ^

src/cpp11__cpp23__explicit_this_parameter.cpp:8:27: error: expected identifier before 'this'
    8 | struct S { int v; int get(this S const& self) { return self.v; } };
      |                           ^~~~
src/cpp11__cpp23__explicit_this_parameter.cpp:8:27: error: expected ',' or '...' before 'this'
src/cpp11__cpp23__explicit_this_parameter.cpp:8:56: error: 'self' was not declared in this scope
    8 | struct S { int v; int get(this S const& self) { return self.v; } };
      |                 

src/cpp11__cpp23__if_consteval.cpp:8:24: error: expected '(' before 'consteval'
    8 | constexpr int f() { if consteval { return 1; } else { return 0; } }
      |                        ^~~~~~~~~
      |                        (
src/cpp11__cpp23__if_consteval.cpp:8:48: error: 'else' without a previous 'if'
    8 | constexpr int f() { if consteval { return 1; } else { return 0; } }
      |                                                ^~~~

src/cpp11__cpp23__multidimensional_subscript.cpp:10:9: error: 'int Matrix::operator[](int, int)' must have exactly one argument
   10 |     int operator[](int r, int c) { return data[r * 2 + c]; }
      |         ^~~~~~~~
src/cpp11__cpp23__multidimensional_subscript.cpp:15:14: warning: left operand of comma operator has no effect [-Wunused-value]
   15 |     return m[1, 1] - 3;
      |              ^
src/cpp11__cpp23__multidimensional_subscript.cpp:15:13: error: no match for 'operator[]' (operan

src/cpp11__cpp23__rtti.cpp:11:80: error: cannot use 'typeid' with '-fno-rtti'
   11 | auto _test_cpp11__cpp23__rtti() -> int { Derived d; Base& b = d; return typeid(b) == typeid(Derived) ? 0 : 1; }
      |                                                                                ^
src/cpp11__cpp23__rtti.cpp:11:100: error: cannot use 'typeid' with '-fno-rtti'
   11 | auto _test_cpp11__cpp23__rtti() -> int { Derived d; Base& b = d; return typeid(b) == typeid(Derived) ? 0 : 1; }
      |       

src/cpp11__cpp23__size_t_suffix.cpp:8:60: error: unable to find numeric literal operator 'operator""uz'
    8 | auto _test_cpp11__cpp23__size_t_suffix() -> int { auto n = 42uz; return n == 42 ? 0 : 1; }
      |                                                            ^~~~

src/cpp11__cpp23__static_call_operator.cpp:8:27: error: 'static int Adder::operator()(int, int)' must be a nonstatic member function
    8 | struct Adder { static int operator()(int a, int b) { return a + b; } };
      |                           ^~~~~~~~
src/cpp11__cpp23__static_call_operator.cpp:9:77: error: no match for call to '(Adder) (int, int)'
    9 | auto _test_cpp11__cpp23__static_call_operator() -> int { return Adder{}(2, 3) - 5; }
      |                                              

src/cpp11__cpp26__pack_indexing.cpp:8:44: error: expected ';' before '...' token
    8 | template using first_t = Ts...[0];
      |                                            ^~~
      |                                            ;
src/cpp11__cpp26__pack_indexing.cpp:9:51: error: 'first_t' was not declared in this scope; did you mean 'fstat'?
    9 | auto _test_cpp11__cpp26__pack_indexing() -> int { first_t v = 42; return v - 42; }
      |                            

src/cpp11__cpp26__variadic_friend.cpp:9:46: error: expected unqualified-id before '...' token
    9 | template struct S { friend Ts...; int x = 42; };
      |                                              ^~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/targets/TARGET_RASPBERRYPI/TARGET_RP2040/pico-sdk/rp2_common/pico_platform/include/pico/platform.h:19,
                 from /home/runner/.platformio/packages/framework-arduino-m

src/cpp11__cpp14__shared_timed_mutex.cpp:9:61: error: 'shared_timed_mutex' is not a member of 'std'
    9 | auto _test_cpp11__cpp14__shared_timed_mutex() -> int { std::shared_timed_mutex m; return 0; }
      |                                                             ^~~~~~~~~~~~~~~~~~
    8 | #include 
  +++ |+#include 
    9 | auto _test_cpp11__cpp14__shared_timed_mutex() -> int { std::shared_timed_mutex m; return 0; }

src/cpp11__cpp17__addressof_constexpr.cpp:10:40: error: call to non-'constexpr' function '_Tp* std::addressof(_Tp&) [with _Tp = const int]'
   10 | constexpr const int* p = std::addressof(x);
      |                          ~~~~~~~~~~~~~~^~~

src/cpp11__cpp17__any.cpp:11:10: error: 'any' is not a member of 'std'
   11 |     std::any a = 42;
      |          ^~~
src/cpp11__cpp17__any.cpp:12:17: error: 'any_cast' is not a member of 'std'
   12 |     return std::any_cast(a) - 42;
      |                 ^~~~~~~~
src/cpp11__cpp17__any.cpp:12:26: error: expected primary-expression before 'int'
   12 |     return std::any_cast(a) - 42;
      |                          ^~~
src/cpp11__cpp17__any.cpp:12:26: error: expected ';' befor

src/cpp11__cpp17__apply.cpp:14:17: error: 'apply' is not a member of 'std'
   14 |     return std::apply(add, args) - 5;
      |                 ^~~~~

src/cpp11__cpp17__as_const.cpp:13:71: error: 'as_const' is not a member of 'std'; did you mean 'is_const'?
   13 |     static_assert(std::is_const>::value, "");
      |                                                                       ^~~~~~~~
      |                                                                       is_const
src/cpp11__cpp17__as_const.cpp:13:71: error: 'as_const' is not a member of 'std'; did you mean 'is_const'?
   13 

src/cpp11__cpp17__atomic_is_always_lock_free.cpp:9:88: error: 'is_always_lock_free' is not a member of 'std::atomic'
    9 | auto _test_cpp11__cpp17__atomic_is_always_lock_free() -> int { (void)std::atomic::is_always_lock_free; return 0; }
      |                                                                                        ^~~~~~~~~~~~~~~~~~~

src/cpp11__cpp17__bool_constant.cpp:9:20: error: 'bool_constant' in namespace 'std' does not name a template type
    9 |     using t = std::bool_constant;
      |                    ^~~~~~~~~~~~~
src/cpp11__cpp17__bool_constant.cpp:10:12: error: 't' has not been declared
   10 |     return t::value ? 0 : 1;
      |            ^

src/cpp11__cpp17__boyer_moore_searcher.cpp:11:187: error: 'boyer_moore_searcher' is not a member of 'std'
   11 | auto _test_cpp11__cpp17__boyer_moore_searcher() -> int { std::string haystack = "hello world"; std::string needle = "world"; auto it = std::search(haystack.begin(), haystack.end(), std::boyer_moore_searcher(needle.begin(), needle.end())); return it != haystack.end() ? 0 : 1; }
      |                                                                                                     

src/cpp11__cpp17__byte.cpp:11:10: error: 'byte' is not a member of 'std'; did you mean 'byte'?
   11 |     std::byte b{0x42};
      |          ^~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/variants/RASPBERRY_PI_PICO/pinmode_arduino.h:30,
                 from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/Arduino.h:26,
                 from src/cpp11__cpp17__byte.cpp:1:
src/cpp11__cpp17__byte.cpp:12:17: error: 'to_integer' is not a me

src/cpp11__cpp17__chrono.cpp:9:108: error: 'floor' is not a member of 'std::chrono'
    9 | auto _test_cpp11__cpp17__chrono() -> int { auto d = std::chrono::milliseconds(1500); auto s = std::chrono::floor(d); return s.count() == 1 ? 0 : 1; }
      |                                                                                                            ^~~~~
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/inclu

src/cpp11__cpp17__clamp.cpp:11:20: error: 'clamp' is not a member of 'std'
   11 |     int val = std::clamp(150, 0, 100);
      |                    ^~~~~

src/cpp11__cpp17__execution.cpp:11:92: error: 'std::execution' has not been declared
   11 | auto _test_cpp11__cpp17__execution() -> int { std::vector v = {3,1,2}; std::sort(std::execution::seq, v.begin(), v.end()); return v[0] == 1 ? 0 : 1; }
      |                                                                                            ^~~~~~~~~

src/cpp11__cpp17__filesystem.cpp:9:10: error: 'std::filesystem' has not been declared
    9 |     std::filesystem::path p("/tmp");
      |          ^~~~~~~~~~
src/cpp11__cpp17__filesystem.cpp:10:12: error: 'p' was not declared in this scope
   10 |     return p.empty() ? 1 : 0;
      |            ^

src/cpp11__cpp17__gcd_lcm.cpp:11:17: error: 'gcd' is not a member of 'std'
   11 |     return std::gcd(12, 8) - 4;
      |                 ^~~

src/cpp11__cpp17__hardware_interference_size.cpp:9:76: error: 'hardware_destructive_interference_size' is not a member of 'std'
    9 | auto _test_cpp11__cpp17__hardware_interference_size() -> int { return std::hardware_destructive_interference_size > 0 ? 0 : 1; }
      |                                                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/cpp11__cpp17__has_unique_object_representations.cpp:9:83: error: 'has_unique_object_representations_v' is not a member of 'std'
    9 | auto _test_cpp11__cpp17__has_unique_object_representations() -> int { return std::has_unique_object_representations_v ? 0 : 1; }
      |                                                                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/cpp11__cpp17__has_unique_object_representations.cpp:9:119: error: expected primary-expression be

src/cpp11__cpp17__hypot.cpp:9:78: error: no matching function for call to 'hypot(double, double, double)'
    9 | auto _test_cpp11__cpp17__hypot() -> int { double h = std::hypot(1.0, 2.0, 2.0); return h > 2.9 && h < 3.1 ? 0 : 1; }
      |                                                                              ^
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/cmath:45,
                 from /home/runner/.platform

src/cpp11__cpp17__invoke.cpp:13:17: error: 'invoke' is not a member of 'std'; did you mean 'mstd::invoke'?
   13 |     return std::invoke(add, 2, 3) - 5;
      |                 ^~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:27,
                 from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/FileHandle.h:23,
                 from /home/runner/

src/cpp11__cpp17__is_aggregate.cpp:11:62: error: 'is_aggregate_v' is not a member of 'std'
   11 | auto _test_cpp11__cpp17__is_aggregate() -> int { return std::is_aggregate_v && !std::is_aggregate_v ? 0 : 1; }
      |                                                              ^~~~~~~~~~~~~~
src/cpp11__cpp17__is_aggregate.cpp:11:80: error: expected primary-expression before '>' token
   11 | auto _test_cpp11__cpp17__is_aggregate() -> int { return std::is_aggregate_v && !std::i

src/cpp11__cpp17__is_invocable.cpp:10:62: error: 'is_invocable_v' is not a member of 'std'
   10 | auto _test_cpp11__cpp17__is_invocable() -> int { return std::is_invocable_v ? 0 : 1; }
      |                                                              ^~~~~~~~~~~~~~
src/cpp11__cpp17__is_invocable.cpp:10:77: error: expected primary-expression before 'decltype'
   10 | auto _test_cpp11__cpp17__is_invocable() -> int { return std::is_invocable_v ?

src/cpp11__cpp17__launder.cpp:9:72: error: 'launder' is not a member of 'std'; did you mean 'mstd::launder'?
    9 | auto _test_cpp11__cpp17__launder() -> int { int x = 42; auto* p = std::launder(&x); return *p - 42; }
      |                                                                        ^~~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:23,
                 from /home/runner/.platformio/packages

src/cpp11__cpp17__logical_traits.cpp:9:64: error: 'conjunction_v' is not a member of 'std'
    9 | auto _test_cpp11__cpp17__logical_traits() -> int { return std::conjunction_v ? 0 : 1; }
      |                                                                ^~~~~~~~~~~~~
src/cpp11__cpp17__logical_traits.cpp:9:92: error: expected primary-expression before ',' token
    9 | auto _test_cpp11__cpp17__logical_traits() -> int { return std::conjunction_v

src/cpp11__cpp17__make_from_tuple.cpp:10:67: error: 'make_from_tuple' is not a member of 'std'; did you mean 'make_tuple'?
   10 | auto _test_cpp11__cpp17__make_from_tuple() -> int { auto s = std::make_from_tuple(std::make_tuple(1, 2)); return s.x + s.y - 3; }
      |                                                                   ^~~~~~~~~~~~~~~
      |                                                                   make_tuple
src/cpp11__cpp17__make_from_tuple.cpp:10:84: error: expected 

src/cpp11__cpp17__map_try_emplace.cpp:11:7: error: 'class std::map' has no member named 'try_emplace'; did you mean 'emplace'?
   11 |     m.try_emplace(1, 42);
      |       ^~~~~~~~~~~
      |       emplace

src/cpp11__cpp17__math_special_functions.cpp:9:76: error: 'riemann_zeta' is not a member of 'std'
    9 | auto _test_cpp11__cpp17__math_special_functions() -> int { double v = std::riemann_zeta(2.0); return v > 1.6 && v < 1.7 ? 0 : 1; }
      |                                                                            ^~~~~~~~~~~~

src/cpp11__cpp17__memory_resource.cpp:9:68: error: 'std::pmr' has not been declared
    9 | auto _test_cpp11__cpp17__memory_resource() -> int { auto* r = std::pmr::get_default_resource(); return r != nullptr ? 0 : 1; }
      |                                                                    ^~~

src/cpp11__cpp17__node_extract.cpp:9:96: error: 'class std::map' has no member named 'extract'
    9 | auto _test_cpp11__cpp17__node_extract() -> int { std::map a = {{1,2}}, b; auto nh = a.extract(1); b.insert(std::move(nh)); return b[1] - 2; }
      |                                                                                                ^~~~~~~

src/cpp11__cpp17__nonmember_container_access.cpp:9:95: error: 'size' is not a member of 'std'; did you mean 'mstd::size'?
    9 | auto _test_cpp11__cpp17__nonmember_container_access() -> int { int a[] = {1,2,3}; return std::size(a) == 3 ? 0 : 1; }
      |                                                                                               ^~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/cxxsupport/mstd_memory:38,
           

src/cpp11__cpp17__not_fn.cpp:10:24: error: 'not_fn' is not a member of 'std'; did you mean 'mstd::not_fn'?
   10 |     auto is_odd = std::not_fn(is_even);
      |                        ^~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:27,
                 from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/FileHandle.h:23,
                 from /home

src/cpp11__cpp17__optional.cpp:11:10: error: 'optional' is not a member of 'std'
   11 |     std::optional val = 42;
      |          ^~~~~~~~
src/cpp11__cpp17__optional.cpp:11:19: error: expected primary-expression before 'int'
   11 |     std::optional val = 42;
      |                   ^~~
src/cpp11__cpp17__optional.cpp:12:12: error: 'val' was not declared in this scope
   12 |     return val.value() - 42;
      |            ^~~

src/cpp11__cpp17__parallel_algorithm.cpp:9:75: error: 'std::execution' has not been declared
    9 | auto _test_cpp11__cpp17__parallel_algorithm() -> int { auto policy = std::execution::seq; (void)policy; return 0; }
      |                                                                           ^~~~~~~~~

src/cpp11__cpp17__raw_memory_algorithms.cpp:9:247: error: 'destroy' is not a member of 'std'; did you mean 'mstd::destroy'?
    9 | auto _test_cpp11__cpp17__raw_memory_algorithms() -> int { int src[] = {1,2,3}; alignas(int) unsigned char buf[sizeof(src)]; auto* dst = reinterpret_cast(buf); std::uninitialized_copy(src, src+3, dst); int v = dst[0] + dst[1] + dst[2]; std::destroy(dst, dst+3); return v - 6; }
      |                                                                              

In file included from src/cpp11__cpp17__sample.cpp:1:
src/cpp11__cpp17__sample.cpp:12:105: error: 'sample' is not a member of 'std'
   12 | auto _test_cpp11__cpp17__sample() -> int { std::vector v = {1,2,3,4,5}; std::vector out; std::sample(v.begin(), v.end(), std::back_inserter(out), 2, std::mt19937{}); return out.size() == 2 ? 0 : 1; }
      |                                                                                                         ^~~~~~

src/cpp11__cpp17__scoped_lock.cpp:9:10: error: 'mutex' is not a member of 'std'
    9 |     std::mutex m;
      |          ^~~~~
    7 | #include 
  +++ |+#include 
    8 | auto _test_cpp11__cpp17__scoped_lock() -> int {
src/cpp11__cpp17__scoped_lock.cpp:10:10: error: 'scoped_lock' is not a member of 'std'
   10 |     std::scoped_lock lock(m);
      |          ^~~~~~~~~~~

src/cpp11__cpp17__shared_mutex.cpp:9:55: error: 'shared_mutex' is not a member of 'std'
    9 | auto _test_cpp11__cpp17__shared_mutex() -> int { std::shared_mutex m; return 0; }
      |                                                       ^~~~~~~~~~~~

src/cpp11__cpp17__shared_ptr_weak_type.cpp:9:90: error: 'weak_type' in 'class std::shared_ptr' does not name a type
    9 | auto _test_cpp11__cpp17__shared_ptr_weak_type() -> int { using W = std::shared_ptr::weak_type; auto sp = std::make_shared(42); W wp = sp; return wp.expired() ? 1 : 0; }
      |                                                                                          ^~~~~~~~~
src/cpp11__cpp17__shared_ptr_weak_type.cpp:9:138: error: 'W' was not declared in this

src/cpp11__cpp17__string_view.cpp:11:10: error: 'string_view' is not a member of 'std'
   11 |     std::string_view sv = "hello";
      |          ^~~~~~~~~~~
src/cpp11__cpp17__string_view.cpp:12:29: error: 'sv' was not declared in this scope; did you mean 'sq'?
   12 |     return static_cast(sv.size()) - 5;
      |                             ^~
      |                             sq

src/cpp11__cpp17__type_trait_variable_templates.cpp:9:17: error: 'is_integral_v' is not a member of 'std'; did you mean 'is_integral'?
    9 |     return std::is_integral_v && !std::is_floating_point_v ? 0 : 1;
      |                 ^~~~~~~~~~~~~
      |                 is_integral
src/cpp11__cpp17__type_trait_variable_templates.cpp:9:31: error: expected primary-expression before 'int'
    9 |     return std::is_integral_v && !std::is_floating_point_v ? 0 : 1;
      |      

src/cpp11__cpp17__unordered_map_try_emplace.cpp:10:105: error: 'class std::unordered_map, int>' has no member named 'try_emplace'; did you mean 'emplace'?
   10 | auto _test_cpp11__cpp17__unordered_map_try_emplace() -> int { std::unordered_map m; m.try_emplace("key", 42); return m["key"] - 42; }
      |                                                                                                         ^~~~~~~~~~~
      |                     

src/cpp11__cpp17__variant.cpp:11:10: error: 'variant' is not a member of 'std'
   11 |     std::variant v = 42;
      |          ^~~~~~~
src/cpp11__cpp17__variant.cpp:11:18: error: expected primary-expression before 'int'
   11 |     std::variant v = 42;
      |                  ^~~
src/cpp11__cpp17__variant.cpp:12:26: error: 'v' was not declared in this scope
   12 |     return std::get(v) - 42;
      |                          ^

src/cpp11__cpp20__assume_aligned.cpp:9:73: warning: requested alignment 64 is larger than 8 [-Wattributes]
    9 | auto _test_cpp11__cpp20__assume_aligned() -> int { alignas(64) int buf[4] = {42}; auto* p = std::assume_aligned<64>(buf); return p[0] - 42; }
      |                                                                         ^
src/cpp11__cpp20__assume_aligned.cpp:9:98: error: 'assume_aligned' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__assume_aligned() -> int { alignas(64

src/cpp11__cpp20__atomic_flag_test.cpp:9:102: error: 'struct std::atomic_flag' has no member named 'test'
    9 | auto _test_cpp11__cpp20__atomic_flag_test() -> int { std::atomic_flag f = ATOMIC_FLAG_INIT; return f.test() ? 1 : 0; }
      |                                                                                                      ^~~~

src/cpp11__cpp20__atomic_lock_free_type_aliases.cpp:9:72: error: 'atomic_signed_lock_free' is not a member of 'std'; did you mean 'atomic_is_lock_free'?
    9 | auto _test_cpp11__cpp20__atomic_lock_free_type_aliases() -> int { std::atomic_signed_lock_free a{0}; a.store(42); return a.load() - 42; }
      |                                                                        ^~~~~~~~~~~~~~~~~~~~~~~
      |                                                                        atomic_is_lock_free

src/cpp11__cpp20__atomic_ref.cpp:9:64: error: 'atomic_ref' is not a member of 'std'; did you mean 'atomic_int'?
    9 | auto _test_cpp11__cpp20__atomic_ref() -> int { int x = 0; std::atomic_ref r(x); r.store(42); return r.load() - 42; }
      |                                                                ^~~~~~~~~~
      |                                                                atomic_int
src/cpp11__cpp20__atomic_ref.cpp:9:75: error: expected primary-expression before 'int'
    9 |

In file included from src/cpp11__cpp20__atomic_shared_ptr.cpp:8:
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/atomic:191:21: error: static assertion failed: std::atomic requires a trivially copyable type
  191 |       static_assert(__is_trivially_copyable(_Tp),
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/cpp11__cpp20__atomic_wait.cpp:9:75: error: 'struct std::atomic' has no member named 'wait'
    9 | auto _test_cpp11__cpp20__atomic_wait() -> int { std::atomic a{42}; a.wait(0); return 0; }
      |                                                                           ^~~~

src/cpp11__cpp20__barrier.cpp:8:10: fatal error: barrier: No such file or directory
    8 | #include 
      |          ^~~~~~~~~

src/cpp11__cpp20__bind_front.cpp:13:22: error: 'bind_front' is not a member of 'std'
   13 |     auto add5 = std::bind_front(add, 5);
      |                      ^~~~~~~~~~

src/cpp11__cpp20__bit_cast.cpp:13:22: error: 'bit_cast' is not a member of 'std'; did you mean 'bad_cast'?
   13 |     auto bits = std::bit_cast(f);
      |                      ^~~~~~~~
      |                      bad_cast
src/cpp11__cpp20__bit_cast.cpp:13:39: error: expected primary-expression before '>' token
   13 |     auto bits = std::bit_cast(f);
      |                                       ^

src/cpp11__cpp20__bitops.cpp:9:17: error: 'popcount' is not a member of 'std'
    9 |     return std::popcount(0b1010u) - 2;
      |                 ^~~~~~~~

src/cpp11__cpp20__bounded_array_traits.cpp:9:70: error: 'is_bounded_array_v' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__bounded_array_traits() -> int { return std::is_bounded_array_v && !std::is_bounded_array_v ? 0 : 1; }
      |                                                                      ^~~~~~~~~~~~~~~~~~
src/cpp11__cpp20__bounded_array_traits.cpp:9:89: error: expected primary-expression before 'int'
    9 | auto _test_cpp11__cpp20__bounded_array_traits()

src/cpp11__cpp20__char8_t_lib.cpp:9:54: error: 'u8string' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__char8_t_lib() -> int { std::u8string s = u8"hello"; return s.size() == 5 ? 0 : 1; }
      |                                                      ^~~~~~~~
src/cpp11__cpp20__char8_t_lib.cpp:9:85: error: 's' was not declared in this scope
    9 | auto _test_cpp11__cpp20__char8_t_lib() -> int { std::u8string s = u8"hello"; return s.size() == 5 ? 0 : 1; }
      |                        

src/cpp11__cpp20__common_reference.cpp:9:69: error: 'common_reference_t' in namespace 'std' does not name a template type; did you mean 'remove_reference_t'?
    9 | auto _test_cpp11__cpp20__common_reference() -> int { using T = std::common_reference_t; return std::is_same_v ? 0 : 1; }
      |                                                                     ^~~~~~~~~~~~~~~~~~
      |                                                                     remove_re

src/cpp11__cpp20__common_reference_wrapper.cpp:10:77: error: 'common_reference_t' in namespace 'std' does not name a template type; did you mean 'remove_reference_t'?
   10 | auto _test_cpp11__cpp20__common_reference_wrapper() -> int { using T = std::common_reference_t>; return std::is_reference_v ? 0 : 1; }
      |                                                                             ^~~~~~~~~~~~~~~~~~
      |                                           

src/cpp11__cpp20__concepts_lib.cpp:8:10: fatal error: concepts: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp11__cpp20__constexpr_algorithms.cpp:10:33: error: missing template arguments before 'a'
   10 | constexpr auto f() { std::array a{3,1,2}; std::sort(a.begin(), a.end()); return a[0]; }
      |                                 ^
src/cpp11__cpp20__constexpr_algorithms.cpp:10:53: error: 'a' was not declared in this scope
   10 | constexpr auto f() { std::array a{3,1,2}; std::sort(a.begin(), a.end()); return a[0]; }
      |                                                     ^
src/cpp11__cpp20_

src/cpp11__cpp20__constexpr_dynamic_alloc_lib.cpp:9:41: error: variable 'a' of non-literal type 'std::allocator' in 'constexpr' function
    9 | constexpr int f() { std::allocator a; int* p = a.allocate(1); *p = 42; int v = *p; a.deallocate(p, 1); return v; }
      |                                         ^
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/string:41,
                 from .pio/libdeps/test/n

src/cpp11__cpp20__constexpr_functional.cpp:10:20: error: 'invoke' is not a member of 'std'; did you mean 'mstd::invoke'?
   10 | static_assert(std::invoke(add, 2, 3) == 5);
      |                    ^~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:27,
                 from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/FileHandle.h:23,
             

src/cpp11__cpp20__constexpr_iterator.cpp:10:73: error: call to non-'constexpr' function 'decltype (__cont.begin()) std::begin(_Container&) [with _Container = std::array; decltype (__cont.begin()) = int*]'
   10 | constexpr int f() { std::array a = {1, 2, 3}; return *std::begin(a); }
      |                                                               ~~~~~~~~~~^~~
src/cpp11__cpp20__constexpr_iterator.cpp:11:19: error: non-constant condition for static assertion
   11 | static_as

src/cpp11__cpp20__constexpr_memory.cpp:9:37: error: 'construct_at' is not a member of 'std'
    9 | constexpr int f() { int x = 0; std::construct_at(&x, 42); return x; }
      |                                     ^~~~~~~~~~~~
src/cpp11__cpp20__constexpr_memory.cpp:10:19: error: static assertion failed
   10 | static_assert(f() == 42);
      |               ~~~~^~~~~

src/cpp11__cpp20__constexpr_numeric.cpp:10:77: error: call to non-'constexpr' function '_Tp std::accumulate(_InputIterator, _InputIterator, _Tp) [with _InputIterator = int*; _Tp = int]'
   10 | constexpr int f() { std::array a = {1, 2, 3}; return std::accumulate(a.begin(), a.end(), 0); }
      |                                                              ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
src/cpp11__cpp20__constexpr_numeric.cpp:11:19: error: non-constant condition for static asserti

src/cpp11__cpp20__constexpr_string.cpp:9:33: error: variable 's' of non-literal type 'std::string' {aka 'std::__cxx11::basic_string'} in 'constexpr' function
    9 | constexpr int f() { std::string s = "hi"; return s.size(); }
      |                                 ^
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/string:55,
                 from .pio/libdeps/test/nonstd-lite-bundle/include/string:13,
        

src/cpp11__cpp20__constexpr_string_view.cpp:9:16: error: 'string_view' in namespace 'std' does not name a type
    9 | constexpr std::string_view sv = "hello";
      |                ^~~~~~~~~~~
    9 | constexpr std::string_view sv = "hello";
      |           ^~~
src/cpp11__cpp20__constexpr_string_view.cpp:10:15: error: 'sv' was not declared in this scope; did you mean 'sq'?
   10 | static_assert(sv.size() == 5);
      |               ^~
      |               sq

src/cpp11__cpp20__constexpr_utility.cpp:9:55: error: call to non-'constexpr' function '_Tp std::exchange(_Tp&, _Up&&) [with _Tp = int; _Up = int]'
    9 | constexpr int f() { int x = 1; int old = std::exchange(x, 42); return x + old; }
      |                                          ~~~~~~~~~~~~~^~~~~~~
src/cpp11__cpp20__constexpr_utility.cpp:10:19: error: non-constant condition for static assertion
   10 | static_assert(f() == 43);
      |               ~~~~^~~~~
src/cpp11__cpp20__constexpr_ut

src/cpp11__cpp20__constexpr_vector.cpp:9:38: error: variable 'v' of non-literal type 'std::vector' in 'constexpr' function
    9 | constexpr int f() { std::vector v = {1,2,3}; return v.size(); }
      |                                      ^
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/vector:67,
                 from src/cpp11__cpp20__constexpr_vector.cpp:8:
src/cpp11__cpp20__constexpr_vector.cpp:10:19:

src/cpp11__cpp20__constrained_equality.cpp:10:63: error: 'optional' is not a member of 'std'
   10 | auto _test_cpp11__cpp20__constrained_equality() -> int { std::optional a{42}, b{42}; return a == b ? 0 : 1; }
      |                                                               ^~~~~~~~
src/cpp11__cpp20__constrained_equality.cpp:10:72: error: expected primary-expression before 'int'
   10 | auto _test_cpp11__cpp20__constrained_equality() -> int { std::optional a{42}, b{42}; return a 

src/cpp11__cpp20__coroutine.cpp:8:10: fatal error: coroutine: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp11__cpp20__destroying_delete.cpp:9:64: error: 'std::destroying_delete_t' has not been declared
    9 | struct Node { int v; static void operator delete(Node* p, std::destroying_delete_t) { p->~Node(); ::operator delete(p); } };
      |                                                                ^~~~~~~~~~~~~~~~~~~
src/cpp11__cpp20__destroying_delete.cpp:9:34: error: 'operator delete' takes type 'void*' as first parameter
    9 | struct Node { int v; static void operator delete(Node* p,

src/cpp11__cpp20__endian.cpp:9:18: error: 'std::endian' has not been declared
    9 |     return (std::endian::native == std::endian::big ||
      |                  ^~~~~~
src/cpp11__cpp20__endian.cpp:9:41: error: 'std::endian' has not been declared
    9 |     return (std::endian::native == std::endian::big ||
      |                                         ^~~~~~
src/cpp11__cpp20__endian.cpp:10:18: error: 'std::endian' has not been declared
   10 |             std::endian::native == std::endi

src/cpp11__cpp20__erase_if.cpp:10:10: error: 'erase_if' is not a member of 'std'; did you mean 'enable_if'?
   10 |     std::erase_if(v, [](int x) { return x % 2 == 0; });
      |          ^~~~~~~~
      |          enable_if

src/cpp11__cpp20__format.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp20__format_uchar.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp20__freestanding_ranges.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp20__generic_unordered_lookup.cpp:10:67: error: 'std::string_view' has not been declared
   10 | struct Hash { using is_transparent = void; size_t operator()(std::string_view sv) const { return std::hash{}(sv); } };
      |                                                                   ^~~~~~~~~~~
src/cpp11__cpp20__generic_unordered_lookup.cpp:10:113: error: 'string_view' is not a member of 'std'
   10 | struct Hash { using is_transparent = void; size_t operator

src/cpp11__cpp20__int_pow2.cpp:9:58: error: 'has_single_bit' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__int_pow2() -> int { return std::has_single_bit(8u) && std::bit_ceil(5u) == 8 ? 0 : 1; }
      |                                                          ^~~~~~~~~~~~~~
src/cpp11__cpp20__int_pow2.cpp:9:85: error: 'bit_ceil' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__int_pow2() -> int { return std::has_single_bit(8u) && std::bit_ceil(5u) == 8 ? 0 : 1; }
      |     

src/cpp11__cpp20__integer_comparison_functions.cpp:9:78: error: 'cmp_less' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__integer_comparison_functions() -> int { return std::cmp_less(-1, 1u) ? 0 : 1; }
      |                                                                              ^~~~~~~~

src/cpp11__cpp20__interpolate.cpp:9:63: error: 'midpoint' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__interpolate() -> int { auto m = std::midpoint(1, 3); auto l = std::lerp(0.0, 1.0, 0.5); return (m == 2 && l == 0.5) ? 0 : 1; }
      |                                                               ^~~~~~~~
src/cpp11__cpp20__interpolate.cpp:9:93: error: 'lerp' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__interpolate() -> int { auto m = std::midpoint(1, 3); auto l = std:

src/cpp11__cpp20__is_constant_evaluated.cpp:9:30: error: 'is_constant_evaluated' is not a member of 'std'; did you mean 'mstd::is_constant_evaluated'?
    9 | constexpr int f() { if (std::is_constant_evaluated()) return 1; return 0; }
      |                              ^~~~~~~~~~~~~~~~~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:26,
                 from /home/runner/.platformio/packages/framework-a

src/cpp11__cpp20__is_nothrow_convertible.cpp:9:72: error: 'is_nothrow_convertible_v' is not a member of 'std'; did you mean 'is_nothrow_constructible'?
    9 | auto _test_cpp11__cpp20__is_nothrow_convertible() -> int { return std::is_nothrow_convertible_v ? 0 : 1; }
      |                                                                        ^~~~~~~~~~~~~~~~~~~~~~~~
      |                                                                        is_nothrow_constructible
src/cpp11__c

src/cpp11__cpp20__jthread.cpp:8:10: fatal error: stop_token: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~

src/cpp11__cpp20__latch.cpp:8:10: fatal error: latch: No such file or directory
    8 | #include 
      |          ^~~~~~~

src/cpp11__cpp20__list_remove_return_type.cpp:9:99: error: 'void n' has incomplete type
    9 | auto _test_cpp11__cpp20__list_remove_return_type() -> int { std::list l = {1, 2, 2, 3}; auto n = l.remove(2); return n == 2 ? 0 : 1; }
      |                                                                                                   ^

src/cpp11__cpp20__math_constants.cpp:7:10: fatal error: numbers: No such file or directory
    7 | #include 
      |          ^~~~~~~~~

src/cpp11__cpp20__polymorphic_allocator.cpp:9:64: error: 'std::pmr' has not been declared
    9 | auto _test_cpp11__cpp20__polymorphic_allocator() -> int { std::pmr::polymorphic_allocator alloc; return 0; }
      |                                                                ^~~
src/cpp11__cpp20__polymorphic_allocator.cpp:9:91: error: expected primary-expression before 'int'
    9 | auto _test_cpp11__cpp20__polymorphic_allocator() -> int { std::pmr::polymorphic_allocator alloc; retur

src/cpp11__cpp20__ranges.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp20__remove_cvref.cpp:9:62: error: 'is_same_v' is not a member of 'std'; did you mean 'is_same'?
    9 | auto _test_cpp11__cpp20__remove_cvref() -> int { return std::is_same_v, int> ? 0 : 1; }
      |                                                              ^~~~~~~~~
      |                                                              is_same
src/cpp11__cpp20__remove_cvref.cpp:9:77: error: 'remove_cvref_t' is not a member of 'std'; did you mean 'r

src/cpp11__cpp20__semaphore.cpp:8:10: fatal error: semaphore: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp11__cpp20__shift.cpp:10:55: error: missing template arguments before 'v'
   10 | auto _test_cpp11__cpp20__shift() -> int { std::vector v = {1,2,3,4,5}; std::shift_left(v.begin(), v.end(), 2); return v[0] == 3 ? 0 : 1; }
      |                                                       ^
src/cpp11__cpp20__shift.cpp:10:77: error: 'shift_left' is not a member of 'std'
   10 | auto _test_cpp11__cpp20__shift() -> int { std::vector v = {1,2,3,4,5}; std::shift_left(v.begin(), v.end(), 2); return v[0

src/cpp11__cpp20__smart_ptr_for_overwrite.cpp:9:75: error: 'make_unique_for_overwrite' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__smart_ptr_for_overwrite() -> int { auto p = std::make_unique_for_overwrite(); *p = 42; return *p - 42; }
      |                                                                           ^~~~~~~~~~~~~~~~~~~~~~~~~
src/cpp11__cpp20__smart_ptr_for_overwrite.cpp:9:101: error: expected primary-expression before 'int'
    9 | auto _test_cpp11__cpp20__sma

src/cpp11__cpp20__source_location.cpp:7:10: fatal error: source_location: No such file or directory
    7 | #include 
      |          ^~~~~~~~~~~~~~~~~

src/cpp11__cpp20__span.cpp:10:15: error: 'span' is not a member of 'std'
   10 | auto sum(std::span values) -> int {
      |               ^~~~
src/cpp11__cpp20__span.cpp:10:20: error: expected primary-expression before 'const'
   10 | auto sum(std::span values) -> int {
      |                    ^~~~~
src/cpp11__cpp20__span.cpp:10:39: error: expected ',' or ';' before '->' token
   10 | auto sum(std::span values) -> int {
      |                                

src/cpp11__cpp20__ssize.cpp:9:74: error: 'ssize' is not a member of 'std'; did you mean 'mstd::ssize'?
    9 | auto _test_cpp11__cpp20__ssize() -> int { int a[] = {1,2,3}; return std::ssize(a) == 3 ? 0 : 1; }
      |                                                                          ^~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/cxxsupport/mstd_memory:38,
                 from /home/runner/.platformio/packages/framework-ardu

src/cpp11__cpp20__starts_ends_with.cpp:10:14: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'starts_with'
   10 |     return s.starts_with("hello") && s.ends_with("world") ? 0 : 1;
      |              ^~~~~~~~~~~
src/cpp11__cpp20__starts_ends_with.cpp:10:40: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'ends_with'
   10 |     return s.starts_with("hello") && s.ends_with("world") ? 0 : 1;
      |                

src/cpp11__cpp20__syncbuf.cpp:8:10: fatal error: syncstream: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~

src/cpp11__cpp20__three_way_comparison_lib.cpp:8:10: fatal error: compare: No such file or directory
    8 | #include 
      |          ^~~~~~~~~

src/cpp11__cpp20__to_address.cpp:9:86: error: 'to_address' is not a member of 'std'
    9 | auto _test_cpp11__cpp20__to_address() -> int { int x = 42; int* p = &x; return *std::to_address(p) - 42; }
      |                                                                                      ^~~~~~~~~~

src/cpp11__cpp20__to_array.cpp:11:21: error: 'to_array' is not a member of 'std'; did you mean 'is_array'?
   11 |     auto arr = std::to_array({1, 2, 3, 4, 5});
      |                     ^~~~~~~~
      |                     is_array

src/cpp11__cpp20__type_identity.cpp:9:37: error: 'std::type_identity_t' has not been declared
    9 | template void f(T, std::type_identity_t) {}
      |                                     ^~~~~~~~~~~~~~~
src/cpp11__cpp20__type_identity.cpp:9:52: error: expected ',' or '...' before '<' token
    9 | template void f(T, std::type_identity_t) {}
      |                                                    ^

src/cpp11__cpp20__unwrap_ref.cpp:9:99: error: 'unwrap_ref_decay_t' in namespace 'std' does not name a template type
    9 | auto _test_cpp11__cpp20__unwrap_ref() -> int { int x = 42; auto ref = std::ref(x); using T = std::unwrap_ref_decay_t; return std::is_same_v ? 0 : 1; }
      |                                                                                                   ^~~~~~~~~~~~~~~~~~
src/cpp11__cpp20__unwrap_ref.cpp:9:146: error: 'is_same_v' is not a member o

src/cpp11__cpp23__adaptor_iterator_pair_constructor.cpp:10:137: error: no matching function for call to 'std::queue::queue(std::vector::iterator, std::vector::iterator)'
   10 | auto _test_cpp11__cpp23__adaptor_iterator_pair_constructor() -> int { std::vector v = {1,2,3}; std::queue q(v.begin(), v.end()); return q.size() == 3 ? 0 : 1; }
      |                                                                                                                                 

src/cpp11__cpp23__allocate_at_least.cpp:9:83: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
    9 | auto _test_cpp11__cpp23__allocate_at_least() -> int { std::allocator a; auto [ptr, n] = a.allocate_at_least(4); a.deallocate(ptr, n); return n >= 4 ? 0 : 1; }
      |                                                                                   ^
src/cpp11__cpp23__allocate_at_least.cpp:9:96: error: 'class std::allocator' has no member named 'allocate

src/cpp11__cpp23__associative_heterogeneous_erasure.cpp:11:142: error: 'string_view' is not a member of 'std'
   11 | auto _test_cpp11__cpp23__associative_heterogeneous_erasure() -> int { std::map> m; m["key"] = 42; m.erase(std::string_view("key")); return m.empty() ? 0 : 1; }
      |                                                                                                                                              ^~~~~~~~~~~

src/cpp11__cpp23__bind_back.cpp:10:64: error: 'bind_back' is not a member of 'std'
   10 | auto _test_cpp11__cpp23__bind_back() -> int { auto sub5 = std::bind_back(sub, 5); return sub5(8) - 3; }
      |                                                                ^~~~~~~~~

src/cpp11__cpp23__byteswap.cpp:11:29: error: 'byteswap' is not a member of 'std'
   11 |     uint16_t swapped = std::byteswap(val);
      |                             ^~~~~~~~

src/cpp11__cpp23__constexpr_bitset.cpp:10:25: error: non-constant condition for static assertion
   10 | static_assert(b.count() == 4);
      |               ~~~~~~~~~~^~~~
src/cpp11__cpp23__constexpr_bitset.cpp:10:22: error: call to non-'constexpr' function 'std::size_t std::bitset<_Nb>::count() const [with unsigned int _Nb = 8; std::size_t = unsigned int]'
   10 | static_assert(b.count() == 4);
      |               ~~~~~~~^~

src/cpp11__cpp23__constexpr_charconv.cpp:10:54: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   10 | constexpr int f() { std::array buf{}; auto [ptr, ec] = std::to_chars(buf.data(), buf.data() + buf.size(), 42); return ec == std::errc{} ? 0 : 1; }
      |                                                      ^
src/cpp11__cpp23__constexpr_charconv.cpp:10:119: error: call to non-'constexpr' function 'std::__detail::__integer_to_chars_result_type<_Tp> std

src/cpp11__cpp23__constexpr_format.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__constexpr_inplace_vector.cpp:8:10: fatal error: inplace_vector: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp11__cpp23__constexpr_typeinfo.cpp:9:87: error: cannot use 'typeid' with '-fno-rtti'
    9 | auto _test_cpp11__cpp23__constexpr_typeinfo() -> int { constexpr auto& ti = typeid(int); return ti == typeid(int) ? 0 : 1; }
      |                                                                                       ^
src/cpp11__cpp23__constexpr_typeinfo.cpp:9:113: error: cannot use 'typeid' with '-fno-rtti'
    9 | auto _test_cpp11__cpp23__constexpr_typeinfo() -> int { constexpr auto& ti = type

src/cpp11__cpp23__containers_ranges.cpp:9:10: fatal error: ranges: No such file or directory
    9 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__expected.cpp:10:35: error: 'expected' in namespace 'std' does not name a template type; did you mean 'unexpected'?
   10 | auto divide(int a, int b) -> std::expected {
      |                                   ^~~~~~~~
      |                                   unexpected
src/cpp11__cpp23__expected.cpp:10:43: error: expected initializer before '<' token
   10 | auto divide(int a, int b) -> std::expected {
      |                               

src/cpp11__cpp23__flat_map.cpp:8:10: fatal error: flat_map: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp11__cpp23__flat_set.cpp:8:10: fatal error: flat_set: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp11__cpp23__format_ranges.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__formatters.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__forward_like.cpp:12:23: error: 'forward_like' is not a member of 'std'
   12 |     auto&& ref = std::forward_like(s.x);
      |                       ^~~~~~~~~~~~
src/cpp11__cpp23__forward_like.cpp:12:36: error: expected primary-expression before 'const'
   12 |     auto&& ref = std::forward_like(s.x);
      |                                    ^~~~~
src/cpp11__cpp23__forward_like.cpp:11:7: warning: unused variable 's' [-Wunused-variable]
   11 |     S s{42}

src/cpp11__cpp23__freestanding_mdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

In file included from src/cpp11__cpp23__freestanding_random.cpp:1:

src/cpp11__cpp23__generator.cpp:8:10: fatal error: generator: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp11__cpp23__hardened_basic_stacktrace.cpp:8:10: fatal error: stacktrace: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~

src/cpp11__cpp23__hardened_inplace_vector.cpp:8:10: fatal error: inplace_vector: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp11__cpp23__hardened_mdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/valarray:603,

                 from src/cpp11__cpp23__hardened_valarray.cpp:8:
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/bits/valarray_after.h:445:42: error: macro "abs" passed 2 arguments, but takes just 1
  445 |     _DEFINE_EXPR_UNARY_FUNCTION(abs, _Abs)
      |                                          ^
In file included from src/cpp11__cpp23__hardened_valarray.cpp:1:
                 from src/cpp11__cpp23__hardened_valarray.cpp:8:
/home/runne

src/cpp11__cpp23__hardened_view_interface.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__hazard_pointer.cpp:8:10: fatal error: hazard_pointer: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp11__cpp23__hive.cpp:8:10: fatal error: hive: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp11__cpp23__invoke_r.cpp:10:58: error: 'invoke_r' is not a member of 'std'; did you mean 'mbed::detail::invoke_r'?
   10 | auto _test_cpp11__cpp23__invoke_r() -> int { return std::invoke_r(add, 2, 3) - 5; }
      |                                                          ^~~~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/FileHandle.h:23,
                 from /home/runner/.platformio/packages/framework-

src/cpp11__cpp23__ios_noreplace.cpp:9:73: error: 'noreplace' is not a member of 'std::ios' {aka 'std::basic_ios'}
    9 | auto _test_cpp11__cpp23__ios_noreplace() -> int { auto mode = std::ios::noreplace; (void)mode; return 0; }
      |                                                                         ^~~~~~~~~

src/cpp11__cpp23__is_implicit_lifetime.cpp:10:70: error: 'is_implicit_lifetime_v' is not a member of 'std'
   10 | auto _test_cpp11__cpp23__is_implicit_lifetime() -> int { return std::is_implicit_lifetime_v ? 0 : 1; }
      |                                                                      ^~~~~~~~~~~~~~~~~~~~~~
src/cpp11__cpp23__is_implicit_lifetime.cpp:10:94: error: expected primary-expression before '>' token
   10 | auto _test_cpp11__cpp23__is_implicit_lifetime() -> int { return std::

src/cpp11__cpp23__is_layout_compatible.cpp:10:70: error: 'is_layout_compatible_v' is not a member of 'std'
   10 | auto _test_cpp11__cpp23__is_layout_compatible() -> int { return std::is_layout_compatible_v ? 0 : 1; }
      |                                                                      ^~~~~~~~~~~~~~~~~~~~~~
src/cpp11__cpp23__is_layout_compatible.cpp:10:94: error: expected primary-expression before ',' token
   10 | auto _test_cpp11__cpp23__is_layout_compatible() -> int { return st

src/cpp11__cpp23__is_pointer_interconvertible.cpp:10:77: error: 'is_pointer_interconvertible_with_class' is not a member of 'std'
   10 | auto _test_cpp11__cpp23__is_pointer_interconvertible() -> int { return std::is_pointer_interconvertible_with_class(&S::x) ? 0 : 1; }
      |                                                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/cpp11__cpp23__is_pointer_interconvertible.cpp:10:117: error: expected primary-expression befor

src/cpp11__cpp23__is_scoped_enum.cpp:10:64: error: 'is_scoped_enum_v' is not a member of 'std'
   10 | auto _test_cpp11__cpp23__is_scoped_enum() -> int { return std::is_scoped_enum_v && !std::is_scoped_enum_v ? 0 : 1; }
      |                                                                ^~~~~~~~~~~~~~~~
src/cpp11__cpp23__is_scoped_enum.cpp:10:82: error: expected primary-expression before '>' token
   10 | auto _test_cpp11__cpp23__is_scoped_enum() -> int { return std::is_scoped_enum_v

src/cpp11__cpp23__linalg.cpp:8:10: fatal error: linalg: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__mdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__move_only_function.cpp:9:61: error: 'move_only_function' is not a member of 'std'
    9 | auto _test_cpp11__cpp23__move_only_function() -> int { std::move_only_function f = []{ return 42; }; return f() - 42; }
      |                                                             ^~~~~~~~~~~~~~~~~~
src/cpp11__cpp23__move_only_function.cpp:9:87: error: 'f' was not declared in this scope
    9 | auto _test_cpp11__cpp23__move_only_function() -> int { std::move_only_function

src/cpp11__cpp23__out_ptr.cpp:10:85: error: 'out_ptr' is not a member of 'std'; did you mean 'auto_ptr'?
   10 | auto _test_cpp11__cpp23__out_ptr() -> int { std::unique_ptr up; alloc_int(std::out_ptr(up)); return *up - 42; }
      |                                                                                     ^~~~~~~
      |                                                                                     auto_ptr
src/cpp11__cpp23__out_ptr.cpp:9:13: warning: 'void alloc_int(int**)' 

src/cpp11__cpp23__print.cpp:8:10: fatal error: print: No such file or directory
    8 | #include 
      |          ^~~~~~~

src/cpp11__cpp23__ranges_as_const.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_as_rvalue.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_cartesian_product.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_chunk.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_chunk_by.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_contains.cpp:10:65: error: missing template arguments before 'v'
   10 | auto _test_cpp11__cpp23__ranges_contains() -> int { std::vector v = {1,2,3}; return std::ranges::contains(v, 2) ? 0 : 1; }
      |                                                                 ^
src/cpp11__cpp23__ranges_contains.cpp:10:90: error: 'std::ranges' has not been declared
   10 | auto _test_cpp11__cpp23__ranges_contains() -> int { std::vector v = {1,2,3}; return std::ranges::contains(v, 

src/cpp11__cpp23__ranges_enumerate.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_find_last.cpp:10:66: error: missing template arguments before 'v'
   10 | auto _test_cpp11__cpp23__ranges_find_last() -> int { std::vector v = {1,2,3,2,1}; auto r = std::ranges::find_last(v, 2); return *r.begin() == 2 && r.begin() == v.begin()+3 ? 0 : 1; }
      |                                                                  ^
src/cpp11__cpp23__ranges_find_last.cpp:10:97: error: 'std::ranges' has not been declared
   10 | auto _test_cpp11__cpp23__ranges_find_last() ->

src/cpp11__cpp23__ranges_fold.cpp:11:61: error: missing template arguments before 'v'
   11 | auto _test_cpp11__cpp23__ranges_fold() -> int { std::vector v = {1,2,3}; return std::ranges::fold_left(v, 0, std::plus{}) - 6; }
      |                                                             ^
src/cpp11__cpp23__ranges_fold.cpp:11:86: error: 'std::ranges' has not been declared
   11 | auto _test_cpp11__cpp23__ranges_fold() -> int { std::vector v = {1,2,3}; return std::ranges::fold_left(v, 0, std::p

In file included from src/cpp11__cpp23__ranges_generate_random.cpp:1:

src/cpp11__cpp23__ranges_iota.cpp:10:77: error: 'std::ranges' has not been declared
   10 | auto _test_cpp11__cpp23__ranges_iota() -> int { std::vector v(5); std::ranges::iota(v, 1); return v[0] == 1 && v[4] == 5 ? 0 : 1; }
      |                                                                             ^~~~~~

src/cpp11__cpp23__ranges_join_with.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_repeat.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_reserve_hint.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_slide.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_starts_ends_with.cpp:10:73: error: missing template arguments before 'v'
   10 | auto _test_cpp11__cpp23__ranges_starts_ends_with() -> int { std::vector v = {1,2,3,4,5}; std::vector p = {1,2}; return std::ranges::starts_with(v, p) ? 0 : 1; }
      |                                                                         ^
src/cpp11__cpp23__ranges_starts_ends_with.cpp:10:102: error: missing template arguments before 'p'
   10 | auto _test_cpp11__cpp23__ranges_starts_ends_

src/cpp11__cpp23__ranges_stride.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_to_container.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__ranges_zip.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp23__rcu.cpp:8:10: fatal error: rcu: No such file or directory
    8 | #include 
      |          ^~~~~

src/cpp11__cpp23__reference_from_temporary.cpp:9:74: error: 'reference_constructs_from_temporary_v' is not a member of 'std'
    9 | auto _test_cpp11__cpp23__reference_from_temporary() -> int { return std::reference_constructs_from_temporary_v ? 0 : 1; }
      |                                                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/cpp11__cpp23__reference_from_temporary.cpp:9:112: error: expected primary-expression before 'const'
    9

src/cpp11__cpp23__simd_complex.cpp:8:10: fatal error: simd: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp11__cpp23__simd_permutations.cpp:8:10: fatal error: simd: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp11__cpp23__spanstream.cpp:8:10: fatal error: spanstream: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~

src/cpp11__cpp23__stacktrace.cpp:7:10: fatal error: stacktrace: No such file or directory
    7 | #include 
      |          ^~~~~~~~~~~~

In file included from src/cpp11__cpp23__stdatomic_h.cpp:8:
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/lib/gcc/arm-none-eabi/9.2.1/include/stdatomic.h:40:9: error: '_Atomic' does not name a type
   40 | typedef _Atomic _Bool atomic_bool;
      |         ^~~~~~~
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/lib/gcc/arm-none-eabi/9.2.1/include/stdatomic.h:41:9: error: '_Atomic' does not name a type
   41 | typedef _Atomic char atomic_char;

src/cpp11__cpp23__string_contains.cpp:9:93: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'contains'
    9 | auto _test_cpp11__cpp23__string_contains() -> int { std::string s = "hello world"; return s.contains("world") ? 0 : 1; }
      |                                                                                             ^~~~~~~~

src/cpp11__cpp23__string_resize_and_overwrite.cpp:9:82: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'resize_and_overwrite'
    9 | auto _test_cpp11__cpp23__string_resize_and_overwrite() -> int { std::string s; s.resize_and_overwrite(5, [](char* p, std::size_t n) { for (std::size_t i=0; i

src/cpp11__cpp23__to_underlying.cpp:13:17: error: 'to_underlying' is not a member of 'std'
   13 |     return std::to_underlying(Color::Green) - 2;
      |                 ^~~~~~~~~~~~~
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/valarray:603,

src/cpp11__cpp23__tuple_like.cpp:10:66: error: missing template arguments before '(' token
   10 | auto _test_cpp11__cpp23__tuple_like() -> int { auto p = std::pair(1, 2); auto [a, b] = p; return a + b - 3; }
      |                                                                  ^
src/cpp11__cpp23__tuple_like.cpp:10:79: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   10 | auto _test_cpp11__cpp23__tuple_like() -> int { auto p = std::pair(1, 2); auto [a, b] = p

src/cpp11__cpp23__unreachable.cpp:9:87: error: 'unreachable' is not a member of 'std'
    9 | auto _test_cpp11__cpp23__unreachable() -> int { int x = 1; if (x == 1) return 0; std::unreachable(); }
      |                                                                                       ^~~~~~~~~~~
src/cpp11__cpp23__unreachable.cpp:9:102: warning: control reaches end of non-void function [-Wreturn-type]
    9 | auto _test_cpp11__cpp23__unreachable() -> int { int x = 1; if (x == 1) return 0; s

                 from src/cpp11__cpp23__valarray_lib.cpp:8:
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/bits/valarray_after.h:445:42: error: macro "abs" passed 2 arguments, but takes just 1
  445 |     _DEFINE_EXPR_UNARY_FUNCTION(abs, _Abs)
      |                                          ^
In file included from src/cpp11__cpp23__valarray_lib.cpp:1:
                 from src/cpp11__cpp23__valarray_lib.cpp:8:
/home/runner/.platformio/p

src/cpp11__cpp26__aligned_accessor.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp26__constexpr_flat_map.cpp:8:10: fatal error: flat_map: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp11__cpp26__constexpr_flat_set.cpp:8:10: fatal error: flat_set: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp11__cpp26__contracts_lib.cpp:8:10: fatal error: contracts: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp11__cpp26__debugging.cpp:8:10: fatal error: debugging: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp11__cpp26__define_static.cpp:8:10: fatal error: meta: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp11__cpp26__inplace_vector.cpp:8:10: fatal error: inplace_vector: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

In file included from src/cpp11__cpp26__philox_engine.cpp:1:

src/cpp11__cpp26__ranges_cache_latest.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp26__ranges_concat.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp26__ranges_indices.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp26__ranges_to_input.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp26__reflection.cpp:8:10: fatal error: meta: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp11__cpp26__saturation_arithmetic.cpp:10:71: error: 'add_sat' is not a member of 'std'
   10 | auto _test_cpp11__cpp26__saturation_arithmetic() -> int { return std::add_sat(200, 200) == 255 ? 0 : 1; }
      |                                                                       ^~~~~~~
src/cpp11__cpp26__saturation_arithmetic.cpp:10:86: error: expected primary-expression before '>' token
   10 | auto _test_cpp11__cpp26__saturation_arithmetic() -> int { return std::add_sat(

src/cpp11__cpp26__simd.cpp:8:10: fatal error: simd: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp11__cpp26__submdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp11__cpp26__text_encoding.cpp:8:10: fatal error: text_encoding: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~

src/cpp11__cpp26__type_order.cpp:8:10: fatal error: compare: No such file or directory
    8 | #include 
      |          ^~~~~~~~~

src/cpp14__cpp11__exceptions.cpp:8:60: error: exception handling disabled, use '-fexceptions' to enable
    8 | auto _test_cpp14__cpp11__exceptions() -> int { try { throw 42; } catch (int e) { return e - 42; } return 1; }
      |                                                            ^~
src/cpp14__cpp11__exceptions.cpp:8:89: error: 'e' was not declared in this scope
    8 | auto _test_cpp14__cpp11__exceptions() -> int { try { throw 42; } catch (int e) { return e - 42; } return 1; }
      |  

src/cpp14__cpp17__aggregate_bases.cpp:10:69: error: no matching function for call to 'Derived::Derived()'
   10 | auto _test_cpp14__cpp17__aggregate_bases() -> int { Derived d{{1}, 2}; return d.x + d.y - 3; }
      |                                                                     ^
    9 | struct Derived : Base { int y; };
      |        ^~~~~~~

src/cpp14__cpp17__deduction_guides.cpp:9:72: error: missing template arguments before '(' token
    9 | auto _test_cpp14__cpp17__deduction_guides() -> int { auto p = std::pair(1, 2.0); return p.first - 1; }
      |                                                                        ^

src/cpp14__cpp17__guaranteed_copy_elision.cpp:9:31: error: use of deleted function 'NoCopy::NoCopy(NoCopy&&)'
    9 | NoCopy make() { return NoCopy{}; }
      |                               ^
    8 | struct NoCopy { NoCopy() = default; NoCopy(const NoCopy&) = delete; NoCopy(NoCopy&&) = delete; };
      |                                                                     ^~~~~~
src/cpp14__cpp17__guaranteed_copy_elision.cpp:10:77: error: use of deleted function 'NoCopy::NoCopy(NoCopy&&)'
   10 |

src/cpp14__cpp17__noexcept_function_type.cpp:9:72: error: 'is_same_v' is not a member of 'std'; did you mean 'is_same'?
    9 | auto _test_cpp14__cpp17__noexcept_function_type() -> int { return std::is_same_v ? 1 : 0; }
      |                                                                        ^~~~~~~~~
      |                                                                        is_same
src/cpp14__cpp17__noexcept_function_type.cpp:9:88: error: expected ';' before '

src/cpp14__cpp17__nontype_template_args.cpp:9:12: error: non-type template parameters of class type only available with '-std=c++2a' or '-std=gnu++2a'
    9 | template constexpr int get() { return s.v; }
      |            ^
src/cpp14__cpp17__nontype_template_args.cpp:10:77: error: no matching function for call to 'get()'
   10 | auto _test_cpp14__cpp17__nontype_template_args() -> int { return get() - 42; }
      |                                                               

src/cpp14__cpp17__nontype_template_parameter_auto.cpp:8:15: error: 'auto' parameter not permitted in this context
    8 | template constexpr auto value = N;
      |               ^
    9 | auto _test_cpp14__cpp17__nontype_template_parameter_auto() -> int { return value<42> - 42; }
      |                                                                            ^~~~~~~~~

src/cpp14__cpp17__template_template_args.cpp:10:81: error: type/value mismatch at argument 1 in template parameter list for 'template class C, class T> struct Wrap'
   10 | auto _test_cpp14__cpp17__template_template_args() -> int { Wrap w; w.c.push_back(42); return w.c[0] - 42; }
      |                                                                                 ^
src/cpp14__cpp17__template_template_args.cpp:10:88: error: request for member 'c' in 'w', which

src/cpp14__cpp20__aggregate_paren_init.cpp:9:66: error: no matching function for call to 'S::S(int, int)'
    9 | auto _test_cpp14__cpp20__aggregate_paren_init() -> int { S s(1, 2); return s.x + s.y - 3; }
      |                                                                  ^
    8 | struct S { int x; int y; };
      |        ^

src/cpp14__cpp20__char8_t_lang.cpp:8:50: error: 'char8_t' was not declared in this scope; did you mean 'char16_t'?
    8 | auto _test_cpp14__cpp20__char8_t_lang() -> int { char8_t c = u8'A'; return c == u8'A' ? 0 : 1; }
      |                                                  ^~~~~~~
      |                                                  char16_t
src/cpp14__cpp20__char8_t_lang.cpp:8:76: error: 'c' was not declared in this scope
    8 | auto _test_cpp14__cpp20__char8_t_lang() -> int { char8_t c

src/cpp14__cpp20__concepts.cpp:8:10: fatal error: concepts: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp14__cpp20__conditional_explicit.cpp:9:33: warning: 'explicit(bool)' only available with '-std=c++2a' or '-std=gnu++2a'
    9 | struct S { template explicit(!std::is_same_v) S(T) {} };
      |                                 ^~~~~~~~
src/cpp14__cpp20__conditional_explicit.cpp:9:48: error: 'is_same_v' is not a member of 'std'; did you mean 'is_same'?
    9 | struct S { template explicit(!std::is_same_v) S(T) {} };
      |                              

src/cpp14__cpp20__consteval.cpp:8:1: error: 'consteval' does not name a type; did you mean 'constexpr'?
    8 | consteval int square(int x) { return x * x; }
      | ^~~~~~~~~
      | constexpr
src/cpp14__cpp20__consteval.cpp:11:25: error: 'square' was not declared in this scope
   11 |     constexpr int val = square(5);
      |                         ^~~~~~

src/cpp14__cpp20__constexpr_dynamic_alloc.cpp:8:40: error: call to non-'constexpr' function 'void* operator new(std::size_t)'
    8 | constexpr int f() { int* p = new int(42); int v = *p; delete p; return v; }
      |                                        ^
src/cpp14__cpp20__constexpr_dynamic_alloc.cpp:9:19: error: non-constant condition for static assertion
    9 | static_assert(f() == 42);
      |               ~~~~^~~~~
src/cpp14__cpp20__constexpr_dynamic_alloc.cpp:9:16: error: 'constexpr in

src/cpp14__cpp20__constinit.cpp:8:1: error: 'constinit' does not name a type; did you mean 'constrain'?
    8 | constinit int global_val = 42;
      | ^~~~~~~~~
      | constrain
src/cpp14__cpp20__constinit.cpp:11:12: error: 'global_val' was not declared in this scope
   11 |     return global_val - 42;
      |            ^~~~~~~~~~

src/cpp14__cpp20__impl_coroutine.cpp:11:10: fatal error: experimental/coroutine: No such file or directory
   11 | #include 
      |          ^~~~~~~~~~~~~~~~~~~~~~~~

src/cpp14__cpp20__impl_destroying_delete.cpp:9:58: error: 'std::destroying_delete_t' has not been declared
    9 | struct S { int v; static void operator delete(S* p, std::destroying_delete_t) { p->~S(); ::operator delete(p); } };
      |                                                          ^~~~~~~~~~~~~~~~~~~
src/cpp14__cpp20__impl_destroying_delete.cpp:9:31: error: 'operator delete' takes type 'void*' as first parameter
    9 | struct S { int v; static void operator delete(S* p, std::destr

src/cpp14__cpp20__impl_three_way_comparison.cpp:8:10: fatal error: compare: No such file or directory
    8 | #include 
      |          ^~~~~~~~~

src/cpp14__cpp20__using_enum.cpp:9:54: error: expected nested-name-specifier before 'enum'
    9 | auto _test_cpp14__cpp20__using_enum() -> int { using enum Color; return static_cast(Green) == 1 ? 0 : 1; }
      |                                                      ^~~~
src/cpp14__cpp20__using_enum.cpp:9:90: error: 'Green' was not declared in this scope; did you mean 'Color::Green'?
    9 | auto _test_cpp14__cpp20__using_enum() -> int { using enum Color; return static_cast(Green) == 1

src/cpp14__cpp23__auto_cast.cpp:8:66: error: invalid use of 'auto'
    8 | auto _test_cpp14__cpp23__auto_cast() -> int { int x = 42; auto y = auto(x); return y - 42; }
      |                                                                  ^

src/cpp14__cpp23__explicit_this_parameter.cpp:8:27: error: expected identifier before 'this'
    8 | struct S { int v; int get(this S const& self) { return self.v; } };
      |                           ^~~~
src/cpp14__cpp23__explicit_this_parameter.cpp:8:27: error: expected ',' or '...' before 'this'
src/cpp14__cpp23__explicit_this_parameter.cpp:8:56: error: 'self' was not declared in this scope
    8 | struct S { int v; int get(this S const& self) { return self.v; } };
      |                 

src/cpp14__cpp23__if_consteval.cpp:8:24: error: expected '(' before 'consteval'
    8 | constexpr int f() { if consteval { return 1; } else { return 0; } }
      |                        ^~~~~~~~~
      |                        (
src/cpp14__cpp23__if_consteval.cpp:8:48: error: 'else' without a previous 'if'
    8 | constexpr int f() { if consteval { return 1; } else { return 0; } }
      |                                                ^~~~

src/cpp14__cpp23__multidimensional_subscript.cpp:10:9: error: 'int Matrix::operator[](int, int)' must have exactly one argument
   10 |     int operator[](int r, int c) { return data[r * 2 + c]; }
      |         ^~~~~~~~
src/cpp14__cpp23__multidimensional_subscript.cpp:15:14: warning: left operand of comma operator has no effect [-Wunused-value]
   15 |     return m[1, 1] - 3;
      |              ^
src/cpp14__cpp23__multidimensional_subscript.cpp:15:13: error: no match for 'operator[]' (operan

src/cpp14__cpp23__rtti.cpp:11:80: error: cannot use 'typeid' with '-fno-rtti'
   11 | auto _test_cpp14__cpp23__rtti() -> int { Derived d; Base& b = d; return typeid(b) == typeid(Derived) ? 0 : 1; }
      |                                                                                ^
src/cpp14__cpp23__rtti.cpp:11:100: error: cannot use 'typeid' with '-fno-rtti'
   11 | auto _test_cpp14__cpp23__rtti() -> int { Derived d; Base& b = d; return typeid(b) == typeid(Derived) ? 0 : 1; }
      |       

src/cpp14__cpp23__size_t_suffix.cpp:8:60: error: unable to find numeric literal operator 'operator""uz'
    8 | auto _test_cpp14__cpp23__size_t_suffix() -> int { auto n = 42uz; return n == 42 ? 0 : 1; }
      |                                                            ^~~~

src/cpp14__cpp23__static_call_operator.cpp:8:27: error: 'static int Adder::operator()(int, int)' must be a nonstatic member function
    8 | struct Adder { static int operator()(int a, int b) { return a + b; } };
      |                           ^~~~~~~~
src/cpp14__cpp23__static_call_operator.cpp:9:77: error: no match for call to '(Adder) (int, int)'
    9 | auto _test_cpp14__cpp23__static_call_operator() -> int { return Adder{}(2, 3) - 5; }
      |                                              

src/cpp14__cpp26__pack_indexing.cpp:8:44: error: expected ';' before '...' token
    8 | template using first_t = Ts...[0];
      |                                            ^~~
      |                                            ;
src/cpp14__cpp26__pack_indexing.cpp:9:51: error: 'first_t' was not declared in this scope; did you mean 'fstat'?
    9 | auto _test_cpp14__cpp26__pack_indexing() -> int { first_t v = 42; return v - 42; }
      |                            

src/cpp14__cpp26__variadic_friend.cpp:9:46: error: expected unqualified-id before '...' token
    9 | template struct S { friend Ts...; int x = 42; };
      |                                              ^~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/targets/TARGET_RASPBERRYPI/TARGET_RP2040/pico-sdk/rp2_common/pico_platform/include/pico/platform.h:19,
                 from /home/runner/.platformio/packages/framework-arduino-m

src/cpp14__cpp14__shared_timed_mutex.cpp:9:61: error: 'shared_timed_mutex' is not a member of 'std'
    9 | auto _test_cpp14__cpp14__shared_timed_mutex() -> int { std::shared_timed_mutex m; return 0; }
      |                                                             ^~~~~~~~~~~~~~~~~~
    8 | #include 
  +++ |+#include 
    9 | auto _test_cpp14__cpp14__shared_timed_mutex() -> int { std::shared_timed_mutex m; return 0; }

src/cpp14__cpp17__addressof_constexpr.cpp:10:40: error: call to non-'constexpr' function '_Tp* std::addressof(_Tp&) [with _Tp = const int]'
   10 | constexpr const int* p = std::addressof(x);
      |                          ~~~~~~~~~~~~~~^~~

src/cpp14__cpp17__any.cpp:11:10: error: 'any' is not a member of 'std'
   11 |     std::any a = 42;
      |          ^~~
src/cpp14__cpp17__any.cpp:12:17: error: 'any_cast' is not a member of 'std'
   12 |     return std::any_cast(a) - 42;
      |                 ^~~~~~~~
src/cpp14__cpp17__any.cpp:12:26: error: expected primary-expression before 'int'
   12 |     return std::any_cast(a) - 42;
      |                          ^~~
src/cpp14__cpp17__any.cpp:12:26: error: expected ';' befor

src/cpp14__cpp17__apply.cpp:14:17: error: 'apply' is not a member of 'std'
   14 |     return std::apply(add, args) - 5;
      |                 ^~~~~

src/cpp14__cpp17__as_const.cpp:13:71: error: 'as_const' is not a member of 'std'; did you mean 'is_const'?
   13 |     static_assert(std::is_const>::value, "");
      |                                                                       ^~~~~~~~
      |                                                                       is_const
src/cpp14__cpp17__as_const.cpp:13:71: error: 'as_const' is not a member of 'std'; did you mean 'is_const'?
   13 

src/cpp14__cpp17__atomic_is_always_lock_free.cpp:9:88: error: 'is_always_lock_free' is not a member of 'std::atomic'
    9 | auto _test_cpp14__cpp17__atomic_is_always_lock_free() -> int { (void)std::atomic::is_always_lock_free; return 0; }
      |                                                                                        ^~~~~~~~~~~~~~~~~~~

src/cpp14__cpp17__bool_constant.cpp:9:20: error: 'bool_constant' in namespace 'std' does not name a template type
    9 |     using t = std::bool_constant;
      |                    ^~~~~~~~~~~~~
src/cpp14__cpp17__bool_constant.cpp:10:12: error: 't' has not been declared
   10 |     return t::value ? 0 : 1;
      |            ^

src/cpp14__cpp17__boyer_moore_searcher.cpp:11:187: error: 'boyer_moore_searcher' is not a member of 'std'
   11 | auto _test_cpp14__cpp17__boyer_moore_searcher() -> int { std::string haystack = "hello world"; std::string needle = "world"; auto it = std::search(haystack.begin(), haystack.end(), std::boyer_moore_searcher(needle.begin(), needle.end())); return it != haystack.end() ? 0 : 1; }
      |                                                                                                     

src/cpp14__cpp17__byte.cpp:11:10: error: 'byte' is not a member of 'std'; did you mean 'byte'?
   11 |     std::byte b{0x42};
      |          ^~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/variants/RASPBERRY_PI_PICO/pinmode_arduino.h:30,
                 from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/Arduino.h:26,
                 from src/cpp14__cpp17__byte.cpp:1:
src/cpp14__cpp17__byte.cpp:12:17: error: 'to_integer' is not a me

src/cpp14__cpp17__chrono.cpp:9:108: error: 'floor' is not a member of 'std::chrono'
    9 | auto _test_cpp14__cpp17__chrono() -> int { auto d = std::chrono::milliseconds(1500); auto s = std::chrono::floor(d); return s.count() == 1 ? 0 : 1; }
      |                                                                                                            ^~~~~
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/inclu

src/cpp14__cpp17__clamp.cpp:11:20: error: 'clamp' is not a member of 'std'
   11 |     int val = std::clamp(150, 0, 100);
      |                    ^~~~~

src/cpp14__cpp17__execution.cpp:11:92: error: 'std::execution' has not been declared
   11 | auto _test_cpp14__cpp17__execution() -> int { std::vector v = {3,1,2}; std::sort(std::execution::seq, v.begin(), v.end()); return v[0] == 1 ? 0 : 1; }
      |                                                                                            ^~~~~~~~~

src/cpp14__cpp17__filesystem.cpp:9:10: error: 'std::filesystem' has not been declared
    9 |     std::filesystem::path p("/tmp");
      |          ^~~~~~~~~~
src/cpp14__cpp17__filesystem.cpp:10:12: error: 'p' was not declared in this scope
   10 |     return p.empty() ? 1 : 0;
      |            ^

src/cpp14__cpp17__gcd_lcm.cpp:11:17: error: 'gcd' is not a member of 'std'
   11 |     return std::gcd(12, 8) - 4;
      |                 ^~~

src/cpp14__cpp17__hardware_interference_size.cpp:9:76: error: 'hardware_destructive_interference_size' is not a member of 'std'
    9 | auto _test_cpp14__cpp17__hardware_interference_size() -> int { return std::hardware_destructive_interference_size > 0 ? 0 : 1; }
      |                                                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/cpp14__cpp17__has_unique_object_representations.cpp:9:83: error: 'has_unique_object_representations_v' is not a member of 'std'
    9 | auto _test_cpp14__cpp17__has_unique_object_representations() -> int { return std::has_unique_object_representations_v ? 0 : 1; }
      |                                                                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/cpp14__cpp17__has_unique_object_representations.cpp:9:119: error: expected primary-expression be

src/cpp14__cpp17__hypot.cpp:9:78: error: no matching function for call to 'hypot(double, double, double)'
    9 | auto _test_cpp14__cpp17__hypot() -> int { double h = std::hypot(1.0, 2.0, 2.0); return h > 2.9 && h < 3.1 ? 0 : 1; }
      |                                                                              ^
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/cmath:45,
                 from /home/runner/.platform

src/cpp14__cpp17__invoke.cpp:13:17: error: 'invoke' is not a member of 'std'; did you mean 'mstd::invoke'?
   13 |     return std::invoke(add, 2, 3) - 5;
      |                 ^~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:27,
                 from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/FileHandle.h:23,
                 from /home/runner/

src/cpp14__cpp17__is_aggregate.cpp:11:62: error: 'is_aggregate_v' is not a member of 'std'
   11 | auto _test_cpp14__cpp17__is_aggregate() -> int { return std::is_aggregate_v && !std::is_aggregate_v ? 0 : 1; }
      |                                                              ^~~~~~~~~~~~~~
src/cpp14__cpp17__is_aggregate.cpp:11:80: error: expected primary-expression before '>' token
   11 | auto _test_cpp14__cpp17__is_aggregate() -> int { return std::is_aggregate_v && !std::i

src/cpp14__cpp17__is_invocable.cpp:10:62: error: 'is_invocable_v' is not a member of 'std'
   10 | auto _test_cpp14__cpp17__is_invocable() -> int { return std::is_invocable_v ? 0 : 1; }
      |                                                              ^~~~~~~~~~~~~~
src/cpp14__cpp17__is_invocable.cpp:10:77: error: expected primary-expression before 'decltype'
   10 | auto _test_cpp14__cpp17__is_invocable() -> int { return std::is_invocable_v ?

src/cpp14__cpp17__launder.cpp:9:72: error: 'launder' is not a member of 'std'; did you mean 'mstd::launder'?
    9 | auto _test_cpp14__cpp17__launder() -> int { int x = 42; auto* p = std::launder(&x); return *p - 42; }
      |                                                                        ^~~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:23,
                 from /home/runner/.platformio/packages

src/cpp14__cpp17__logical_traits.cpp:9:64: error: 'conjunction_v' is not a member of 'std'
    9 | auto _test_cpp14__cpp17__logical_traits() -> int { return std::conjunction_v ? 0 : 1; }
      |                                                                ^~~~~~~~~~~~~
src/cpp14__cpp17__logical_traits.cpp:9:92: error: expected primary-expression before ',' token
    9 | auto _test_cpp14__cpp17__logical_traits() -> int { return std::conjunction_v

src/cpp14__cpp17__make_from_tuple.cpp:10:67: error: 'make_from_tuple' is not a member of 'std'; did you mean 'make_tuple'?
   10 | auto _test_cpp14__cpp17__make_from_tuple() -> int { auto s = std::make_from_tuple(std::make_tuple(1, 2)); return s.x + s.y - 3; }
      |                                                                   ^~~~~~~~~~~~~~~
      |                                                                   make_tuple
src/cpp14__cpp17__make_from_tuple.cpp:10:84: error: expected 

src/cpp14__cpp17__map_try_emplace.cpp:11:7: error: 'class std::map' has no member named 'try_emplace'; did you mean 'emplace'?
   11 |     m.try_emplace(1, 42);
      |       ^~~~~~~~~~~
      |       emplace

src/cpp14__cpp17__math_special_functions.cpp:9:76: error: 'riemann_zeta' is not a member of 'std'
    9 | auto _test_cpp14__cpp17__math_special_functions() -> int { double v = std::riemann_zeta(2.0); return v > 1.6 && v < 1.7 ? 0 : 1; }
      |                                                                            ^~~~~~~~~~~~

src/cpp14__cpp17__memory_resource.cpp:9:68: error: 'std::pmr' has not been declared
    9 | auto _test_cpp14__cpp17__memory_resource() -> int { auto* r = std::pmr::get_default_resource(); return r != nullptr ? 0 : 1; }
      |                                                                    ^~~

src/cpp14__cpp17__node_extract.cpp:9:96: error: 'class std::map' has no member named 'extract'
    9 | auto _test_cpp14__cpp17__node_extract() -> int { std::map a = {{1,2}}, b; auto nh = a.extract(1); b.insert(std::move(nh)); return b[1] - 2; }
      |                                                                                                ^~~~~~~

src/cpp14__cpp17__nonmember_container_access.cpp:9:95: error: 'size' is not a member of 'std'; did you mean 'mstd::size'?
    9 | auto _test_cpp14__cpp17__nonmember_container_access() -> int { int a[] = {1,2,3}; return std::size(a) == 3 ? 0 : 1; }
      |                                                                                               ^~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/cxxsupport/mstd_memory:38,
           

src/cpp14__cpp17__not_fn.cpp:10:24: error: 'not_fn' is not a member of 'std'; did you mean 'mstd::not_fn'?
   10 |     auto is_odd = std::not_fn(is_even);
      |                        ^~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:27,
                 from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/FileHandle.h:23,
                 from /home

src/cpp14__cpp17__optional.cpp:11:10: error: 'optional' is not a member of 'std'
   11 |     std::optional val = 42;
      |          ^~~~~~~~
src/cpp14__cpp17__optional.cpp:11:19: error: expected primary-expression before 'int'
   11 |     std::optional val = 42;
      |                   ^~~
src/cpp14__cpp17__optional.cpp:12:12: error: 'val' was not declared in this scope
   12 |     return val.value() - 42;
      |            ^~~

src/cpp14__cpp17__parallel_algorithm.cpp:9:75: error: 'std::execution' has not been declared
    9 | auto _test_cpp14__cpp17__parallel_algorithm() -> int { auto policy = std::execution::seq; (void)policy; return 0; }
      |                                                                           ^~~~~~~~~

src/cpp14__cpp17__raw_memory_algorithms.cpp:9:247: error: 'destroy' is not a member of 'std'; did you mean 'mstd::destroy'?
    9 | auto _test_cpp14__cpp17__raw_memory_algorithms() -> int { int src[] = {1,2,3}; alignas(int) unsigned char buf[sizeof(src)]; auto* dst = reinterpret_cast(buf); std::uninitialized_copy(src, src+3, dst); int v = dst[0] + dst[1] + dst[2]; std::destroy(dst, dst+3); return v - 6; }
      |                                                                              

In file included from src/cpp14__cpp17__sample.cpp:1:
src/cpp14__cpp17__sample.cpp:12:105: error: 'sample' is not a member of 'std'
   12 | auto _test_cpp14__cpp17__sample() -> int { std::vector v = {1,2,3,4,5}; std::vector out; std::sample(v.begin(), v.end(), std::back_inserter(out), 2, std::mt19937{}); return out.size() == 2 ? 0 : 1; }
      |                                                                                                         ^~~~~~

src/cpp14__cpp17__scoped_lock.cpp:9:10: error: 'mutex' is not a member of 'std'
    9 |     std::mutex m;
      |          ^~~~~
    7 | #include 
  +++ |+#include 
    8 | auto _test_cpp14__cpp17__scoped_lock() -> int {
src/cpp14__cpp17__scoped_lock.cpp:10:10: error: 'scoped_lock' is not a member of 'std'
   10 |     std::scoped_lock lock(m);
      |          ^~~~~~~~~~~

src/cpp14__cpp17__shared_mutex.cpp:9:55: error: 'shared_mutex' is not a member of 'std'
    9 | auto _test_cpp14__cpp17__shared_mutex() -> int { std::shared_mutex m; return 0; }
      |                                                       ^~~~~~~~~~~~

src/cpp14__cpp17__shared_ptr_weak_type.cpp:9:90: error: 'weak_type' in 'class std::shared_ptr' does not name a type
    9 | auto _test_cpp14__cpp17__shared_ptr_weak_type() -> int { using W = std::shared_ptr::weak_type; auto sp = std::make_shared(42); W wp = sp; return wp.expired() ? 1 : 0; }
      |                                                                                          ^~~~~~~~~
src/cpp14__cpp17__shared_ptr_weak_type.cpp:9:138: error: 'W' was not declared in this

src/cpp14__cpp17__string_view.cpp:11:10: error: 'string_view' is not a member of 'std'
   11 |     std::string_view sv = "hello";
      |          ^~~~~~~~~~~
src/cpp14__cpp17__string_view.cpp:12:29: error: 'sv' was not declared in this scope; did you mean 'sq'?
   12 |     return static_cast(sv.size()) - 5;
      |                             ^~
      |                             sq

src/cpp14__cpp17__type_trait_variable_templates.cpp:9:17: error: 'is_integral_v' is not a member of 'std'; did you mean 'is_integral'?
    9 |     return std::is_integral_v && !std::is_floating_point_v ? 0 : 1;
      |                 ^~~~~~~~~~~~~
      |                 is_integral
src/cpp14__cpp17__type_trait_variable_templates.cpp:9:31: error: expected primary-expression before 'int'
    9 |     return std::is_integral_v && !std::is_floating_point_v ? 0 : 1;
      |      

src/cpp14__cpp17__unordered_map_try_emplace.cpp:10:105: error: 'class std::unordered_map, int>' has no member named 'try_emplace'; did you mean 'emplace'?
   10 | auto _test_cpp14__cpp17__unordered_map_try_emplace() -> int { std::unordered_map m; m.try_emplace("key", 42); return m["key"] - 42; }
      |                                                                                                         ^~~~~~~~~~~
      |                     

src/cpp14__cpp17__variant.cpp:11:10: error: 'variant' is not a member of 'std'
   11 |     std::variant v = 42;
      |          ^~~~~~~
src/cpp14__cpp17__variant.cpp:11:18: error: expected primary-expression before 'int'
   11 |     std::variant v = 42;
      |                  ^~~
src/cpp14__cpp17__variant.cpp:12:26: error: 'v' was not declared in this scope
   12 |     return std::get(v) - 42;
      |                          ^

src/cpp14__cpp20__assume_aligned.cpp:9:73: warning: requested alignment 64 is larger than 8 [-Wattributes]
    9 | auto _test_cpp14__cpp20__assume_aligned() -> int { alignas(64) int buf[4] = {42}; auto* p = std::assume_aligned<64>(buf); return p[0] - 42; }
      |                                                                         ^
src/cpp14__cpp20__assume_aligned.cpp:9:98: error: 'assume_aligned' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__assume_aligned() -> int { alignas(64

src/cpp14__cpp20__atomic_flag_test.cpp:9:102: error: 'struct std::atomic_flag' has no member named 'test'
    9 | auto _test_cpp14__cpp20__atomic_flag_test() -> int { std::atomic_flag f = ATOMIC_FLAG_INIT; return f.test() ? 1 : 0; }
      |                                                                                                      ^~~~

src/cpp14__cpp20__atomic_lock_free_type_aliases.cpp:9:72: error: 'atomic_signed_lock_free' is not a member of 'std'; did you mean 'atomic_is_lock_free'?
    9 | auto _test_cpp14__cpp20__atomic_lock_free_type_aliases() -> int { std::atomic_signed_lock_free a{0}; a.store(42); return a.load() - 42; }
      |                                                                        ^~~~~~~~~~~~~~~~~~~~~~~
      |                                                                        atomic_is_lock_free

src/cpp14__cpp20__atomic_ref.cpp:9:64: error: 'atomic_ref' is not a member of 'std'; did you mean 'atomic_int'?
    9 | auto _test_cpp14__cpp20__atomic_ref() -> int { int x = 0; std::atomic_ref r(x); r.store(42); return r.load() - 42; }
      |                                                                ^~~~~~~~~~
      |                                                                atomic_int
src/cpp14__cpp20__atomic_ref.cpp:9:75: error: expected primary-expression before 'int'
    9 |

In file included from src/cpp14__cpp20__atomic_shared_ptr.cpp:8:
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/atomic:191:21: error: static assertion failed: std::atomic requires a trivially copyable type
  191 |       static_assert(__is_trivially_copyable(_Tp),
      |                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/cpp14__cpp20__atomic_wait.cpp:9:75: error: 'struct std::atomic' has no member named 'wait'
    9 | auto _test_cpp14__cpp20__atomic_wait() -> int { std::atomic a{42}; a.wait(0); return 0; }
      |                                                                           ^~~~

src/cpp14__cpp20__barrier.cpp:8:10: fatal error: barrier: No such file or directory
    8 | #include 
      |          ^~~~~~~~~

src/cpp14__cpp20__bind_front.cpp:13:22: error: 'bind_front' is not a member of 'std'
   13 |     auto add5 = std::bind_front(add, 5);
      |                      ^~~~~~~~~~

src/cpp14__cpp20__bit_cast.cpp:13:22: error: 'bit_cast' is not a member of 'std'; did you mean 'bad_cast'?
   13 |     auto bits = std::bit_cast(f);
      |                      ^~~~~~~~
      |                      bad_cast
src/cpp14__cpp20__bit_cast.cpp:13:39: error: expected primary-expression before '>' token
   13 |     auto bits = std::bit_cast(f);
      |                                       ^

src/cpp14__cpp20__bitops.cpp:9:17: error: 'popcount' is not a member of 'std'
    9 |     return std::popcount(0b1010u) - 2;
      |                 ^~~~~~~~

src/cpp14__cpp20__bounded_array_traits.cpp:9:70: error: 'is_bounded_array_v' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__bounded_array_traits() -> int { return std::is_bounded_array_v && !std::is_bounded_array_v ? 0 : 1; }
      |                                                                      ^~~~~~~~~~~~~~~~~~
src/cpp14__cpp20__bounded_array_traits.cpp:9:89: error: expected primary-expression before 'int'
    9 | auto _test_cpp14__cpp20__bounded_array_traits()

src/cpp14__cpp20__char8_t_lib.cpp:9:54: error: 'u8string' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__char8_t_lib() -> int { std::u8string s = u8"hello"; return s.size() == 5 ? 0 : 1; }
      |                                                      ^~~~~~~~
src/cpp14__cpp20__char8_t_lib.cpp:9:85: error: 's' was not declared in this scope
    9 | auto _test_cpp14__cpp20__char8_t_lib() -> int { std::u8string s = u8"hello"; return s.size() == 5 ? 0 : 1; }
      |                        

src/cpp14__cpp20__common_reference.cpp:9:69: error: 'common_reference_t' in namespace 'std' does not name a template type; did you mean 'remove_reference_t'?
    9 | auto _test_cpp14__cpp20__common_reference() -> int { using T = std::common_reference_t; return std::is_same_v ? 0 : 1; }
      |                                                                     ^~~~~~~~~~~~~~~~~~
      |                                                                     remove_re

src/cpp14__cpp20__common_reference_wrapper.cpp:10:77: error: 'common_reference_t' in namespace 'std' does not name a template type; did you mean 'remove_reference_t'?
   10 | auto _test_cpp14__cpp20__common_reference_wrapper() -> int { using T = std::common_reference_t>; return std::is_reference_v ? 0 : 1; }
      |                                                                             ^~~~~~~~~~~~~~~~~~
      |                                           

src/cpp14__cpp20__concepts_lib.cpp:8:10: fatal error: concepts: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp14__cpp20__constexpr_algorithms.cpp:10:33: error: missing template arguments before 'a'
   10 | constexpr auto f() { std::array a{3,1,2}; std::sort(a.begin(), a.end()); return a[0]; }
      |                                 ^
src/cpp14__cpp20__constexpr_algorithms.cpp:10:53: error: 'a' was not declared in this scope
   10 | constexpr auto f() { std::array a{3,1,2}; std::sort(a.begin(), a.end()); return a[0]; }
      |                                                     ^
src/cpp14__cpp20_

src/cpp14__cpp20__constexpr_dynamic_alloc_lib.cpp:9:41: error: variable 'a' of non-literal type 'std::allocator' in 'constexpr' function
    9 | constexpr int f() { std::allocator a; int* p = a.allocate(1); *p = 42; int v = *p; a.deallocate(p, 1); return v; }
      |                                         ^
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/string:41,
                 from .pio/libdeps/test/n

src/cpp14__cpp20__constexpr_functional.cpp:10:20: error: 'invoke' is not a member of 'std'; did you mean 'mstd::invoke'?
   10 | static_assert(std::invoke(add, 2, 3) == 5);
      |                    ^~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:27,
                 from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/FileHandle.h:23,
             

src/cpp14__cpp20__constexpr_iterator.cpp:10:73: error: call to non-'constexpr' function 'decltype (__cont.begin()) std::begin(_Container&) [with _Container = std::array; decltype (__cont.begin()) = int*]'
   10 | constexpr int f() { std::array a = {1, 2, 3}; return *std::begin(a); }
      |                                                               ~~~~~~~~~~^~~
src/cpp14__cpp20__constexpr_iterator.cpp:11:19: error: non-constant condition for static assertion
   11 | static_as

src/cpp14__cpp20__constexpr_memory.cpp:9:37: error: 'construct_at' is not a member of 'std'
    9 | constexpr int f() { int x = 0; std::construct_at(&x, 42); return x; }
      |                                     ^~~~~~~~~~~~
src/cpp14__cpp20__constexpr_memory.cpp:10:19: error: static assertion failed
   10 | static_assert(f() == 42);
      |               ~~~~^~~~~

src/cpp14__cpp20__constexpr_numeric.cpp:10:77: error: call to non-'constexpr' function '_Tp std::accumulate(_InputIterator, _InputIterator, _Tp) [with _InputIterator = int*; _Tp = int]'
   10 | constexpr int f() { std::array a = {1, 2, 3}; return std::accumulate(a.begin(), a.end(), 0); }
      |                                                              ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
src/cpp14__cpp20__constexpr_numeric.cpp:11:19: error: non-constant condition for static asserti

src/cpp14__cpp20__constexpr_string.cpp:9:33: error: variable 's' of non-literal type 'std::string' {aka 'std::__cxx11::basic_string'} in 'constexpr' function
    9 | constexpr int f() { std::string s = "hi"; return s.size(); }
      |                                 ^
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/string:55,
                 from .pio/libdeps/test/nonstd-lite-bundle/include/string:13,
        

src/cpp14__cpp20__constexpr_string_view.cpp:9:16: error: 'string_view' in namespace 'std' does not name a type
    9 | constexpr std::string_view sv = "hello";
      |                ^~~~~~~~~~~
    9 | constexpr std::string_view sv = "hello";
      |           ^~~
src/cpp14__cpp20__constexpr_string_view.cpp:10:15: error: 'sv' was not declared in this scope; did you mean 'sq'?
   10 | static_assert(sv.size() == 5);
      |               ^~
      |               sq

src/cpp14__cpp20__constexpr_utility.cpp:9:55: error: call to non-'constexpr' function '_Tp std::exchange(_Tp&, _Up&&) [with _Tp = int; _Up = int]'
    9 | constexpr int f() { int x = 1; int old = std::exchange(x, 42); return x + old; }
      |                                          ~~~~~~~~~~~~~^~~~~~~
src/cpp14__cpp20__constexpr_utility.cpp:10:19: error: non-constant condition for static assertion
   10 | static_assert(f() == 43);
      |               ~~~~^~~~~
src/cpp14__cpp20__constexpr_ut

src/cpp14__cpp20__constexpr_vector.cpp:9:38: error: variable 'v' of non-literal type 'std::vector' in 'constexpr' function
    9 | constexpr int f() { std::vector v = {1,2,3}; return v.size(); }
      |                                      ^
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/vector:67,
                 from src/cpp14__cpp20__constexpr_vector.cpp:8:
src/cpp14__cpp20__constexpr_vector.cpp:10:19:

src/cpp14__cpp20__constrained_equality.cpp:10:63: error: 'optional' is not a member of 'std'
   10 | auto _test_cpp14__cpp20__constrained_equality() -> int { std::optional a{42}, b{42}; return a == b ? 0 : 1; }
      |                                                               ^~~~~~~~
src/cpp14__cpp20__constrained_equality.cpp:10:72: error: expected primary-expression before 'int'
   10 | auto _test_cpp14__cpp20__constrained_equality() -> int { std::optional a{42}, b{42}; return a 

src/cpp14__cpp20__coroutine.cpp:8:10: fatal error: coroutine: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp14__cpp20__destroying_delete.cpp:9:64: error: 'std::destroying_delete_t' has not been declared
    9 | struct Node { int v; static void operator delete(Node* p, std::destroying_delete_t) { p->~Node(); ::operator delete(p); } };
      |                                                                ^~~~~~~~~~~~~~~~~~~
src/cpp14__cpp20__destroying_delete.cpp:9:34: error: 'operator delete' takes type 'void*' as first parameter
    9 | struct Node { int v; static void operator delete(Node* p,

src/cpp14__cpp20__endian.cpp:9:18: error: 'std::endian' has not been declared
    9 |     return (std::endian::native == std::endian::big ||
      |                  ^~~~~~
src/cpp14__cpp20__endian.cpp:9:41: error: 'std::endian' has not been declared
    9 |     return (std::endian::native == std::endian::big ||
      |                                         ^~~~~~
src/cpp14__cpp20__endian.cpp:10:18: error: 'std::endian' has not been declared
   10 |             std::endian::native == std::endi

src/cpp14__cpp20__erase_if.cpp:10:10: error: 'erase_if' is not a member of 'std'; did you mean 'enable_if'?
   10 |     std::erase_if(v, [](int x) { return x % 2 == 0; });
      |          ^~~~~~~~
      |          enable_if

src/cpp14__cpp20__format.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp20__format_uchar.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp20__freestanding_ranges.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp20__generic_unordered_lookup.cpp:10:67: error: 'std::string_view' has not been declared
   10 | struct Hash { using is_transparent = void; size_t operator()(std::string_view sv) const { return std::hash{}(sv); } };
      |                                                                   ^~~~~~~~~~~
src/cpp14__cpp20__generic_unordered_lookup.cpp:10:113: error: 'string_view' is not a member of 'std'
   10 | struct Hash { using is_transparent = void; size_t operator

src/cpp14__cpp20__int_pow2.cpp:9:58: error: 'has_single_bit' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__int_pow2() -> int { return std::has_single_bit(8u) && std::bit_ceil(5u) == 8 ? 0 : 1; }
      |                                                          ^~~~~~~~~~~~~~
src/cpp14__cpp20__int_pow2.cpp:9:85: error: 'bit_ceil' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__int_pow2() -> int { return std::has_single_bit(8u) && std::bit_ceil(5u) == 8 ? 0 : 1; }
      |     

src/cpp14__cpp20__integer_comparison_functions.cpp:9:78: error: 'cmp_less' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__integer_comparison_functions() -> int { return std::cmp_less(-1, 1u) ? 0 : 1; }
      |                                                                              ^~~~~~~~

src/cpp14__cpp20__interpolate.cpp:9:63: error: 'midpoint' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__interpolate() -> int { auto m = std::midpoint(1, 3); auto l = std::lerp(0.0, 1.0, 0.5); return (m == 2 && l == 0.5) ? 0 : 1; }
      |                                                               ^~~~~~~~
src/cpp14__cpp20__interpolate.cpp:9:93: error: 'lerp' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__interpolate() -> int { auto m = std::midpoint(1, 3); auto l = std:

src/cpp14__cpp20__is_constant_evaluated.cpp:9:30: error: 'is_constant_evaluated' is not a member of 'std'; did you mean 'mstd::is_constant_evaluated'?
    9 | constexpr int f() { if (std::is_constant_evaluated()) return 1; return 0; }
      |                              ^~~~~~~~~~~~~~~~~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/Callback.h:26,
                 from /home/runner/.platformio/packages/framework-a

src/cpp14__cpp20__is_nothrow_convertible.cpp:9:72: error: 'is_nothrow_convertible_v' is not a member of 'std'; did you mean 'is_nothrow_constructible'?
    9 | auto _test_cpp14__cpp20__is_nothrow_convertible() -> int { return std::is_nothrow_convertible_v ? 0 : 1; }
      |                                                                        ^~~~~~~~~~~~~~~~~~~~~~~~
      |                                                                        is_nothrow_constructible
src/cpp14__c

src/cpp14__cpp20__jthread.cpp:8:10: fatal error: stop_token: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~

src/cpp14__cpp20__latch.cpp:8:10: fatal error: latch: No such file or directory
    8 | #include 
      |          ^~~~~~~

src/cpp14__cpp20__list_remove_return_type.cpp:9:99: error: 'void n' has incomplete type
    9 | auto _test_cpp14__cpp20__list_remove_return_type() -> int { std::list l = {1, 2, 2, 3}; auto n = l.remove(2); return n == 2 ? 0 : 1; }
      |                                                                                                   ^

src/cpp14__cpp20__math_constants.cpp:7:10: fatal error: numbers: No such file or directory
    7 | #include 
      |          ^~~~~~~~~

src/cpp14__cpp20__polymorphic_allocator.cpp:9:64: error: 'std::pmr' has not been declared
    9 | auto _test_cpp14__cpp20__polymorphic_allocator() -> int { std::pmr::polymorphic_allocator alloc; return 0; }
      |                                                                ^~~
src/cpp14__cpp20__polymorphic_allocator.cpp:9:91: error: expected primary-expression before 'int'
    9 | auto _test_cpp14__cpp20__polymorphic_allocator() -> int { std::pmr::polymorphic_allocator alloc; retur

src/cpp14__cpp20__ranges.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp20__remove_cvref.cpp:9:62: error: 'is_same_v' is not a member of 'std'; did you mean 'is_same'?
    9 | auto _test_cpp14__cpp20__remove_cvref() -> int { return std::is_same_v, int> ? 0 : 1; }
      |                                                              ^~~~~~~~~
      |                                                              is_same
src/cpp14__cpp20__remove_cvref.cpp:9:77: error: 'remove_cvref_t' is not a member of 'std'; did you mean 'r

src/cpp14__cpp20__semaphore.cpp:8:10: fatal error: semaphore: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp14__cpp20__shift.cpp:10:55: error: missing template arguments before 'v'
   10 | auto _test_cpp14__cpp20__shift() -> int { std::vector v = {1,2,3,4,5}; std::shift_left(v.begin(), v.end(), 2); return v[0] == 3 ? 0 : 1; }
      |                                                       ^
src/cpp14__cpp20__shift.cpp:10:77: error: 'shift_left' is not a member of 'std'
   10 | auto _test_cpp14__cpp20__shift() -> int { std::vector v = {1,2,3,4,5}; std::shift_left(v.begin(), v.end(), 2); return v[0

src/cpp14__cpp20__smart_ptr_for_overwrite.cpp:9:75: error: 'make_unique_for_overwrite' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__smart_ptr_for_overwrite() -> int { auto p = std::make_unique_for_overwrite(); *p = 42; return *p - 42; }
      |                                                                           ^~~~~~~~~~~~~~~~~~~~~~~~~
src/cpp14__cpp20__smart_ptr_for_overwrite.cpp:9:101: error: expected primary-expression before 'int'
    9 | auto _test_cpp14__cpp20__sma

src/cpp14__cpp20__source_location.cpp:7:10: fatal error: source_location: No such file or directory
    7 | #include 
      |          ^~~~~~~~~~~~~~~~~

src/cpp14__cpp20__span.cpp:10:15: error: 'span' is not a member of 'std'
   10 | auto sum(std::span values) -> int {
      |               ^~~~
src/cpp14__cpp20__span.cpp:10:20: error: expected primary-expression before 'const'
   10 | auto sum(std::span values) -> int {
      |                    ^~~~~
src/cpp14__cpp20__span.cpp:10:39: error: expected ',' or ';' before '->' token
   10 | auto sum(std::span values) -> int {
      |                                

src/cpp14__cpp20__ssize.cpp:9:74: error: 'ssize' is not a member of 'std'; did you mean 'mstd::ssize'?
    9 | auto _test_cpp14__cpp20__ssize() -> int { int a[] = {1,2,3}; return std::ssize(a) == 3 ? 0 : 1; }
      |                                                                          ^~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/cxxsupport/mstd_memory:38,
                 from /home/runner/.platformio/packages/framework-ardu

src/cpp14__cpp20__starts_ends_with.cpp:10:14: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'starts_with'
   10 |     return s.starts_with("hello") && s.ends_with("world") ? 0 : 1;
      |              ^~~~~~~~~~~
src/cpp14__cpp20__starts_ends_with.cpp:10:40: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'ends_with'
   10 |     return s.starts_with("hello") && s.ends_with("world") ? 0 : 1;
      |                

src/cpp14__cpp20__syncbuf.cpp:8:10: fatal error: syncstream: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~

src/cpp14__cpp20__three_way_comparison_lib.cpp:8:10: fatal error: compare: No such file or directory
    8 | #include 
      |          ^~~~~~~~~

src/cpp14__cpp20__to_address.cpp:9:86: error: 'to_address' is not a member of 'std'
    9 | auto _test_cpp14__cpp20__to_address() -> int { int x = 42; int* p = &x; return *std::to_address(p) - 42; }
      |                                                                                      ^~~~~~~~~~

src/cpp14__cpp20__to_array.cpp:11:21: error: 'to_array' is not a member of 'std'; did you mean 'is_array'?
   11 |     auto arr = std::to_array({1, 2, 3, 4, 5});
      |                     ^~~~~~~~
      |                     is_array

src/cpp14__cpp20__type_identity.cpp:9:37: error: 'std::type_identity_t' has not been declared
    9 | template void f(T, std::type_identity_t) {}
      |                                     ^~~~~~~~~~~~~~~
src/cpp14__cpp20__type_identity.cpp:9:52: error: expected ',' or '...' before '<' token
    9 | template void f(T, std::type_identity_t) {}
      |                                                    ^

src/cpp14__cpp20__unwrap_ref.cpp:9:99: error: 'unwrap_ref_decay_t' in namespace 'std' does not name a template type
    9 | auto _test_cpp14__cpp20__unwrap_ref() -> int { int x = 42; auto ref = std::ref(x); using T = std::unwrap_ref_decay_t; return std::is_same_v ? 0 : 1; }
      |                                                                                                   ^~~~~~~~~~~~~~~~~~
src/cpp14__cpp20__unwrap_ref.cpp:9:146: error: 'is_same_v' is not a member o

src/cpp14__cpp23__adaptor_iterator_pair_constructor.cpp:10:137: error: no matching function for call to 'std::queue::queue(std::vector::iterator, std::vector::iterator)'
   10 | auto _test_cpp14__cpp23__adaptor_iterator_pair_constructor() -> int { std::vector v = {1,2,3}; std::queue q(v.begin(), v.end()); return q.size() == 3 ? 0 : 1; }
      |                                                                                                                                 

src/cpp14__cpp23__allocate_at_least.cpp:9:83: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
    9 | auto _test_cpp14__cpp23__allocate_at_least() -> int { std::allocator a; auto [ptr, n] = a.allocate_at_least(4); a.deallocate(ptr, n); return n >= 4 ? 0 : 1; }
      |                                                                                   ^
src/cpp14__cpp23__allocate_at_least.cpp:9:96: error: 'class std::allocator' has no member named 'allocate

src/cpp14__cpp23__associative_heterogeneous_erasure.cpp:11:142: error: 'string_view' is not a member of 'std'
   11 | auto _test_cpp14__cpp23__associative_heterogeneous_erasure() -> int { std::map> m; m["key"] = 42; m.erase(std::string_view("key")); return m.empty() ? 0 : 1; }
      |                                                                                                                                              ^~~~~~~~~~~

src/cpp14__cpp23__bind_back.cpp:10:64: error: 'bind_back' is not a member of 'std'
   10 | auto _test_cpp14__cpp23__bind_back() -> int { auto sub5 = std::bind_back(sub, 5); return sub5(8) - 3; }
      |                                                                ^~~~~~~~~

src/cpp14__cpp23__byteswap.cpp:11:29: error: 'byteswap' is not a member of 'std'
   11 |     uint16_t swapped = std::byteswap(val);
      |                             ^~~~~~~~

src/cpp14__cpp23__constexpr_bitset.cpp:10:25: error: non-constant condition for static assertion
   10 | static_assert(b.count() == 4);
      |               ~~~~~~~~~~^~~~
src/cpp14__cpp23__constexpr_bitset.cpp:10:22: error: call to non-'constexpr' function 'std::size_t std::bitset<_Nb>::count() const [with unsigned int _Nb = 8; std::size_t = unsigned int]'
   10 | static_assert(b.count() == 4);
      |               ~~~~~~~^~

src/cpp14__cpp23__constexpr_charconv.cpp:10:54: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   10 | constexpr int f() { std::array buf{}; auto [ptr, ec] = std::to_chars(buf.data(), buf.data() + buf.size(), 42); return ec == std::errc{} ? 0 : 1; }
      |                                                      ^
src/cpp14__cpp23__constexpr_charconv.cpp:10:119: error: call to non-'constexpr' function 'std::__detail::__integer_to_chars_result_type<_Tp> std

src/cpp14__cpp23__constexpr_format.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__constexpr_inplace_vector.cpp:8:10: fatal error: inplace_vector: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp14__cpp23__constexpr_typeinfo.cpp:9:87: error: cannot use 'typeid' with '-fno-rtti'
    9 | auto _test_cpp14__cpp23__constexpr_typeinfo() -> int { constexpr auto& ti = typeid(int); return ti == typeid(int) ? 0 : 1; }
      |                                                                                       ^
src/cpp14__cpp23__constexpr_typeinfo.cpp:9:113: error: cannot use 'typeid' with '-fno-rtti'
    9 | auto _test_cpp14__cpp23__constexpr_typeinfo() -> int { constexpr auto& ti = type

src/cpp14__cpp23__containers_ranges.cpp:9:10: fatal error: ranges: No such file or directory
    9 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__expected.cpp:10:35: error: 'expected' in namespace 'std' does not name a template type; did you mean 'unexpected'?
   10 | auto divide(int a, int b) -> std::expected {
      |                                   ^~~~~~~~
      |                                   unexpected
src/cpp14__cpp23__expected.cpp:10:43: error: expected initializer before '<' token
   10 | auto divide(int a, int b) -> std::expected {
      |                               

src/cpp14__cpp23__flat_map.cpp:8:10: fatal error: flat_map: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp14__cpp23__flat_set.cpp:8:10: fatal error: flat_set: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp14__cpp23__format_ranges.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__formatters.cpp:8:10: fatal error: format: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__forward_like.cpp:12:23: error: 'forward_like' is not a member of 'std'
   12 |     auto&& ref = std::forward_like(s.x);
      |                       ^~~~~~~~~~~~
src/cpp14__cpp23__forward_like.cpp:12:36: error: expected primary-expression before 'const'
   12 |     auto&& ref = std::forward_like(s.x);
      |                                    ^~~~~
src/cpp14__cpp23__forward_like.cpp:11:7: warning: unused variable 's' [-Wunused-variable]
   11 |     S s{42}

src/cpp14__cpp23__freestanding_mdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

In file included from src/cpp14__cpp23__freestanding_random.cpp:1:

src/cpp14__cpp23__generator.cpp:8:10: fatal error: generator: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp14__cpp23__hardened_basic_stacktrace.cpp:8:10: fatal error: stacktrace: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~

src/cpp14__cpp23__hardened_inplace_vector.cpp:8:10: fatal error: inplace_vector: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp14__cpp23__hardened_mdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/valarray:603,

                 from src/cpp14__cpp23__hardened_valarray.cpp:8:
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/bits/valarray_after.h:445:42: error: macro "abs" passed 2 arguments, but takes just 1
  445 |     _DEFINE_EXPR_UNARY_FUNCTION(abs, _Abs)
      |                                          ^
In file included from src/cpp14__cpp23__hardened_valarray.cpp:1:
                 from src/cpp14__cpp23__hardened_valarray.cpp:8:
/home/runne

src/cpp14__cpp23__hardened_view_interface.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~
In file included from /home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/valarray:603,

src/cpp14__cpp23__hazard_pointer.cpp:8:10: fatal error: hazard_pointer: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp14__cpp23__hive.cpp:8:10: fatal error: hive: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp14__cpp23__invoke_r.cpp:10:58: error: 'invoke_r' is not a member of 'std'; did you mean 'mbed::detail::invoke_r'?
   10 | auto _test_cpp14__cpp23__invoke_r() -> int { return std::invoke_r(add, 2, 3) - 5; }
      |                                                          ^~~~~~~~
In file included from /home/runner/.platformio/packages/framework-arduino-mbed/cores/arduino/mbed/platform/include/platform/FileHandle.h:23,
                 from /home/runner/.platformio/packages/framework-

src/cpp14__cpp23__ios_noreplace.cpp:9:73: error: 'noreplace' is not a member of 'std::ios' {aka 'std::basic_ios'}
    9 | auto _test_cpp14__cpp23__ios_noreplace() -> int { auto mode = std::ios::noreplace; (void)mode; return 0; }
      |                                                                         ^~~~~~~~~

src/cpp14__cpp23__is_implicit_lifetime.cpp:10:70: error: 'is_implicit_lifetime_v' is not a member of 'std'
   10 | auto _test_cpp14__cpp23__is_implicit_lifetime() -> int { return std::is_implicit_lifetime_v ? 0 : 1; }
      |                                                                      ^~~~~~~~~~~~~~~~~~~~~~
src/cpp14__cpp23__is_implicit_lifetime.cpp:10:94: error: expected primary-expression before '>' token
   10 | auto _test_cpp14__cpp23__is_implicit_lifetime() -> int { return std::

src/cpp14__cpp23__is_layout_compatible.cpp:10:70: error: 'is_layout_compatible_v' is not a member of 'std'
   10 | auto _test_cpp14__cpp23__is_layout_compatible() -> int { return std::is_layout_compatible_v ? 0 : 1; }
      |                                                                      ^~~~~~~~~~~~~~~~~~~~~~
src/cpp14__cpp23__is_layout_compatible.cpp:10:94: error: expected primary-expression before ',' token
   10 | auto _test_cpp14__cpp23__is_layout_compatible() -> int { return st

src/cpp14__cpp23__is_pointer_interconvertible.cpp:10:77: error: 'is_pointer_interconvertible_with_class' is not a member of 'std'
   10 | auto _test_cpp14__cpp23__is_pointer_interconvertible() -> int { return std::is_pointer_interconvertible_with_class(&S::x) ? 0 : 1; }
      |                                                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/cpp14__cpp23__is_pointer_interconvertible.cpp:10:117: error: expected primary-expression befor

src/cpp14__cpp23__is_scoped_enum.cpp:10:64: error: 'is_scoped_enum_v' is not a member of 'std'
   10 | auto _test_cpp14__cpp23__is_scoped_enum() -> int { return std::is_scoped_enum_v && !std::is_scoped_enum_v ? 0 : 1; }
      |                                                                ^~~~~~~~~~~~~~~~
src/cpp14__cpp23__is_scoped_enum.cpp:10:82: error: expected primary-expression before '>' token
   10 | auto _test_cpp14__cpp23__is_scoped_enum() -> int { return std::is_scoped_enum_v

src/cpp14__cpp23__linalg.cpp:8:10: fatal error: linalg: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__mdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__move_only_function.cpp:9:61: error: 'move_only_function' is not a member of 'std'
    9 | auto _test_cpp14__cpp23__move_only_function() -> int { std::move_only_function f = []{ return 42; }; return f() - 42; }
      |                                                             ^~~~~~~~~~~~~~~~~~
src/cpp14__cpp23__move_only_function.cpp:9:87: error: 'f' was not declared in this scope
    9 | auto _test_cpp14__cpp23__move_only_function() -> int { std::move_only_function

src/cpp14__cpp23__out_ptr.cpp:10:85: error: 'out_ptr' is not a member of 'std'; did you mean 'auto_ptr'?
   10 | auto _test_cpp14__cpp23__out_ptr() -> int { std::unique_ptr up; alloc_int(std::out_ptr(up)); return *up - 42; }
      |                                                                                     ^~~~~~~
      |                                                                                     auto_ptr
src/cpp14__cpp23__out_ptr.cpp:9:13: warning: 'void alloc_int(int**)' 

src/cpp14__cpp23__print.cpp:8:10: fatal error: print: No such file or directory
    8 | #include 
      |          ^~~~~~~

src/cpp14__cpp23__ranges_as_const.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_as_rvalue.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_cartesian_product.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_chunk.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_chunk_by.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_contains.cpp:10:65: error: missing template arguments before 'v'
   10 | auto _test_cpp14__cpp23__ranges_contains() -> int { std::vector v = {1,2,3}; return std::ranges::contains(v, 2) ? 0 : 1; }
      |                                                                 ^
src/cpp14__cpp23__ranges_contains.cpp:10:90: error: 'std::ranges' has not been declared
   10 | auto _test_cpp14__cpp23__ranges_contains() -> int { std::vector v = {1,2,3}; return std::ranges::contains(v, 

src/cpp14__cpp23__ranges_enumerate.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_find_last.cpp:10:66: error: missing template arguments before 'v'
   10 | auto _test_cpp14__cpp23__ranges_find_last() -> int { std::vector v = {1,2,3,2,1}; auto r = std::ranges::find_last(v, 2); return *r.begin() == 2 && r.begin() == v.begin()+3 ? 0 : 1; }
      |                                                                  ^
src/cpp14__cpp23__ranges_find_last.cpp:10:97: error: 'std::ranges' has not been declared
   10 | auto _test_cpp14__cpp23__ranges_find_last() ->

src/cpp14__cpp23__ranges_fold.cpp:11:61: error: missing template arguments before 'v'
   11 | auto _test_cpp14__cpp23__ranges_fold() -> int { std::vector v = {1,2,3}; return std::ranges::fold_left(v, 0, std::plus{}) - 6; }
      |                                                             ^
src/cpp14__cpp23__ranges_fold.cpp:11:86: error: 'std::ranges' has not been declared
   11 | auto _test_cpp14__cpp23__ranges_fold() -> int { std::vector v = {1,2,3}; return std::ranges::fold_left(v, 0, std::p

In file included from src/cpp14__cpp23__ranges_generate_random.cpp:1:

src/cpp14__cpp23__ranges_iota.cpp:10:77: error: 'std::ranges' has not been declared
   10 | auto _test_cpp14__cpp23__ranges_iota() -> int { std::vector v(5); std::ranges::iota(v, 1); return v[0] == 1 && v[4] == 5 ? 0 : 1; }
      |                                                                             ^~~~~~

src/cpp14__cpp23__ranges_join_with.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_repeat.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_reserve_hint.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_slide.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_starts_ends_with.cpp:10:73: error: missing template arguments before 'v'
   10 | auto _test_cpp14__cpp23__ranges_starts_ends_with() -> int { std::vector v = {1,2,3,4,5}; std::vector p = {1,2}; return std::ranges::starts_with(v, p) ? 0 : 1; }
      |                                                                         ^
src/cpp14__cpp23__ranges_starts_ends_with.cpp:10:102: error: missing template arguments before 'p'
   10 | auto _test_cpp14__cpp23__ranges_starts_ends_

src/cpp14__cpp23__ranges_stride.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_to_container.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__ranges_zip.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp23__rcu.cpp:8:10: fatal error: rcu: No such file or directory
    8 | #include 
      |          ^~~~~

src/cpp14__cpp23__reference_from_temporary.cpp:9:74: error: 'reference_constructs_from_temporary_v' is not a member of 'std'
    9 | auto _test_cpp14__cpp23__reference_from_temporary() -> int { return std::reference_constructs_from_temporary_v ? 0 : 1; }
      |                                                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/cpp14__cpp23__reference_from_temporary.cpp:9:112: error: expected primary-expression before 'const'
    9

src/cpp14__cpp23__simd_complex.cpp:8:10: fatal error: simd: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp14__cpp23__simd_permutations.cpp:8:10: fatal error: simd: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp14__cpp23__spanstream.cpp:8:10: fatal error: spanstream: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~

src/cpp14__cpp23__stacktrace.cpp:7:10: fatal error: stacktrace: No such file or directory
    7 | #include 
      |          ^~~~~~~~~~~~

In file included from src/cpp14__cpp23__stdatomic_h.cpp:8:
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/lib/gcc/arm-none-eabi/9.2.1/include/stdatomic.h:40:9: error: '_Atomic' does not name a type
   40 | typedef _Atomic _Bool atomic_bool;
      |         ^~~~~~~
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/lib/gcc/arm-none-eabi/9.2.1/include/stdatomic.h:41:9: error: '_Atomic' does not name a type
   41 | typedef _Atomic char atomic_char;

src/cpp14__cpp23__string_contains.cpp:9:93: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'contains'
    9 | auto _test_cpp14__cpp23__string_contains() -> int { std::string s = "hello world"; return s.contains("world") ? 0 : 1; }
      |                                                                                             ^~~~~~~~

src/cpp14__cpp23__string_resize_and_overwrite.cpp:9:82: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'resize_and_overwrite'
    9 | auto _test_cpp14__cpp23__string_resize_and_overwrite() -> int { std::string s; s.resize_and_overwrite(5, [](char* p, std::size_t n) { for (std::size_t i=0; i

src/cpp14__cpp23__to_underlying.cpp:13:17: error: 'to_underlying' is not a member of 'std'
   13 |     return std::to_underlying(Color::Green) - 2;
      |                 ^~~~~~~~~~~~~

src/cpp14__cpp23__tuple_like.cpp:10:66: error: missing template arguments before '(' token
   10 | auto _test_cpp14__cpp23__tuple_like() -> int { auto p = std::pair(1, 2); auto [a, b] = p; return a + b - 3; }
      |                                                                  ^
src/cpp14__cpp23__tuple_like.cpp:10:79: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   10 | auto _test_cpp14__cpp23__tuple_like() -> int { auto p = std::pair(1, 2); auto [a, b] = p

src/cpp14__cpp23__unreachable.cpp:9:87: error: 'unreachable' is not a member of 'std'
    9 | auto _test_cpp14__cpp23__unreachable() -> int { int x = 1; if (x == 1) return 0; std::unreachable(); }
      |                                                                                       ^~~~~~~~~~~
src/cpp14__cpp23__unreachable.cpp:9:102: warning: control reaches end of non-void function [-Wreturn-type]
    9 | auto _test_cpp14__cpp23__unreachable() -> int { int x = 1; if (x == 1) return 0; s

                 from src/cpp14__cpp23__valarray_lib.cpp:8:
/home/runner/.platformio/packages/toolchain-gccarmnoneeabi@1.90201.191206/arm-none-eabi/include/c++/9.2.1/bits/valarray_after.h:445:42: error: macro "abs" passed 2 arguments, but takes just 1
  445 |     _DEFINE_EXPR_UNARY_FUNCTION(abs, _Abs)
      |                                          ^
In file included from src/cpp14__cpp23__valarray_lib.cpp:1:
                 from src/cpp14__cpp23__valarray_lib.cpp:8:
/home/runner/.platformio/p

src/cpp14__cpp26__aligned_accessor.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp26__constexpr_flat_map.cpp:8:10: fatal error: flat_map: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp14__cpp26__constexpr_flat_set.cpp:8:10: fatal error: flat_set: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp14__cpp26__contracts_lib.cpp:8:10: fatal error: contracts: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp14__cpp26__debugging.cpp:8:10: fatal error: debugging: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp14__cpp26__define_static.cpp:8:10: fatal error: meta: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp14__cpp26__inplace_vector.cpp:8:10: fatal error: inplace_vector: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

In file included from src/cpp14__cpp26__philox_engine.cpp:1:

src/cpp14__cpp26__ranges_cache_latest.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp26__ranges_concat.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp26__ranges_indices.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp26__ranges_to_input.cpp:8:10: fatal error: ranges: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp26__reflection.cpp:8:10: fatal error: meta: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp14__cpp26__saturation_arithmetic.cpp:10:71: error: 'add_sat' is not a member of 'std'
   10 | auto _test_cpp14__cpp26__saturation_arithmetic() -> int { return std::add_sat(200, 200) == 255 ? 0 : 1; }
      |                                                                       ^~~~~~~
src/cpp14__cpp26__saturation_arithmetic.cpp:10:86: error: expected primary-expression before '>' token
   10 | auto _test_cpp14__cpp26__saturation_arithmetic() -> int { return std::add_sat(

src/cpp14__cpp26__simd.cpp:8:10: fatal error: simd: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp14__cpp26__submdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp14__cpp26__text_encoding.cpp:8:10: fatal error: text_encoding: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~