ESP32-S3 (pioarduino)

src/cpp20__atomic_lock_free_type_aliases.cpp:9:65: error: 'atomic_signed_lock_free' is not a member of 'std'
    9 | auto _test_cpp20__atomic_lock_free_type_aliases() -> int { std::atomic_signed_lock_free a{0}; a.store(42); return a.load() - 42; }
      |                                                                 ^~~~~~~~~~~~~~~~~~~~~~~
    8 | #include 
  +++ |+#include 
    9 | auto _test_cpp20__atomic_lock_free_type_aliases() -> int { std::atomic_signed_lock_free a{0}; a.

src/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/cpp23__multidimensional_subscript.cpp:15:15: warning: top-level comma expression in array subscript is deprecated [-Wcomma-subscript]
   15 |     return m[1, 1] - 3;
      |               ^
src/cpp23__multidimensional_subscript.cpp:15:13: error: no match for 'operator[]' (operand 

src/cpp23__rtti.cpp:11:73: error: cannot use 'typeid' with '-fno-rtti'
   11 | auto _test_cpp23__rtti() -> int { Derived d; Base& b = d; return typeid(b) == typeid(Derived) ? 0 : 1; }
      |                                                                         ^
src/cpp23__rtti.cpp:11:93: error: cannot use 'typeid' with '-fno-rtti'
   11 | auto _test_cpp23__rtti() -> int { Derived d; Base& b = d; return typeid(b) == typeid(Derived) ? 0 : 1; }
      |                                           

src/cpp23__adaptor_iterator_pair_constructor.cpp:10:130: error: no matching function for call to 'std::queue::queue(std::vector::iterator, std::vector::iterator)'
   10 | auto _test_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; }
      |                                                                                                                                  ^
In file inc

src/cpp23__allocate_at_least.cpp:9:89: error: 'class std::allocator' has no member named 'allocate_at_least'
    9 | auto _test_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/cpp23__associative_heterogeneous_erasure.cpp:11:129: error: no matching function for call to 'std::map, int, std::less >::erase(std::string_view)'
   11 | auto _test_cpp23__associative_heterogeneous_erasure() -> int { std::map> m; m["key"] = 42; m.erase(std::string_view("key")); return m.empty() ? 0 : 1; }
      |                                                                                                                

src/cpp23__bind_back.cpp:10:57: error: 'bind_back' is not a member of 'std'
   10 | auto _test_cpp23__bind_back() -> int { auto sub5 = std::bind_back(sub, 5); return sub5(8) - 3; }
      |                                                         ^~~~~~~~~

src/cpp23__byteswap.cpp:11:29: error: 'byteswap' is not a member of 'std'
   11 |     uint16_t swapped = std::byteswap(val);
      |                             ^~~~~~~~

src/cpp23__constexpr_bitset.cpp:10:25: error: non-constant condition for static assertion
   10 | static_assert(b.count() == 4);
      |               ~~~~~~~~~~^~~~
src/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);
      |               ~~~~~~~^~
In file included from src/cpp23__constexpr_bitset.cpp:8:

src/cpp23__constexpr_charconv.cpp:10:79: warning: call to non-'constexpr' function 'std::to_chars_result std::to_chars(char*, char*, int, int)' [-Winvalid-constexpr]
   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; }
      |                                                                  ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from src/cpp23__constexp

src/cpp23__constexpr_inplace_vector.cpp:8:10: fatal error: inplace_vector: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp23__constexpr_typeinfo.cpp:9:80: error: cannot use 'typeid' with '-fno-rtti'
    9 | auto _test_cpp23__constexpr_typeinfo() -> int { constexpr auto& ti = typeid(int); return ti == typeid(int) ? 0 : 1; }
      |                                                                                ^
src/cpp23__constexpr_typeinfo.cpp:9:106: error: cannot use 'typeid' with '-fno-rtti'
    9 | auto _test_cpp23__constexpr_typeinfo() -> int { constexpr auto& ti = typeid(int); return ti == typeid(int) ?

src/cpp23__expected.cpp:10:35: error: 'expected' in namespace 'std' does not name a template type
   10 | auto divide(int a, int b) -> std::expected {
      |                                   ^~~~~~~~
   10 | auto divide(int a, int b) -> std::expected {
      |                              ^~~
src/cpp23__expected.cpp:10:43: error: expected initializer before '<' token
   10 | auto divide(int a, int b) -> std::expected {
      |              

src/cpp23__flat_map.cpp:8:10: fatal error: flat_map: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp23__flat_set.cpp:8:10: fatal error: flat_set: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

In file included from src/cpp23__format_ranges.cpp:8:
   10 | auto _test_cpp23__format_ranges() -> int { std::vector v = {1, 2, 3}; auto s = std::format("{}", v); return s.empty() ? 1 : 0; }
      |                                                                                     ~~~~~~~~~~~^~~~~~~~~
/home/runner/.platformio/packages/toolchain-xtensa-esp-elf/xtensa-esp-elf/include/c++/14.2.0/format:4062:10: error: static assertion failed: std::formatter must be specialized for each type b

In file included from src/cpp23__formatters.cpp:8:
   10 | auto _test_cpp23__formatters() -> int { auto s = std::format("{}", std::this_thread::get_id()); return s.empty() ? 1 : 0; }
      |                                                  ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/runner/.platformio/packages/toolchain-xtensa-esp-elf/xtensa-esp-elf/include/c++/14.2.0/format:4062:10: error: static assertion failed: std::formatter must be specialized for each type being formatted
 4062 | 

src/cpp23__forward_like.cpp:12:23: error: 'forward_like' is not a member of 'std'
   12 |     auto&& ref = std::forward_like(s.x);
      |                       ^~~~~~~~~~~~
src/cpp23__forward_like.cpp:12:36: error: expected primary-expression before 'const'
   12 |     auto&& ref = std::forward_like(s.x);
      |                                    ^~~~~

src/cpp23__freestanding_mdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp23__generator.cpp:10:6: error: 'generator' in namespace 'std' does not name a template type; did you mean 'generate'?
   10 | std::generator iota(int n) { for (int i=0; i int { int s=0; for (auto i : iota(4)) s+=i; return s-6; }
      |                         

src/cpp23__hardened_inplace_vector.cpp:8:10: fatal error: inplace_vector: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp23__hardened_mdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp23__hazard_pointer.cpp:8:10: fatal error: hazard_pointer: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp23__hive.cpp:8:10: fatal error: hive: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp23__invoke_r.cpp:10:51: error: 'invoke_r' is not a member of 'std'
   10 | auto _test_cpp23__invoke_r() -> int { return std::invoke_r(add, 2, 3) - 5; }
      |                                                   ^~~~~~~~
src/cpp23__invoke_r.cpp:10:60: error: expected primary-expression before 'long'
   10 | auto _test_cpp23__invoke_r() -> int { return std::invoke_r(add, 2, 3) - 5; }
      |                                                            ^~~~
src/cpp23__invoke_r.cpp:1

src/cpp23__ios_noreplace.cpp:9:66: error: 'noreplace' is not a member of 'std::ios' {aka 'std::basic_ios'}
    9 | auto _test_cpp23__ios_noreplace() -> int { auto mode = std::ios::noreplace; (void)mode; return 0; }
      |                                                                  ^~~~~~~~~

src/cpp23__is_implicit_lifetime.cpp:10:63: error: 'is_implicit_lifetime_v' is not a member of 'std'
   10 | auto _test_cpp23__is_implicit_lifetime() -> int { return std::is_implicit_lifetime_v ? 0 : 1; }
      |                                                               ^~~~~~~~~~~~~~~~~~~~~~
src/cpp23__is_implicit_lifetime.cpp:10:87: error: expected primary-expression before '>' token
   10 | auto _test_cpp23__is_implicit_lifetime() -> int { return std::is_implicit_lifetime_v ? 0 : 1; 

src/cpp23__is_scoped_enum.cpp:10:57: error: 'is_scoped_enum_v' is not a member of 'std'
   10 | auto _test_cpp23__is_scoped_enum() -> int { return std::is_scoped_enum_v && !std::is_scoped_enum_v ? 0 : 1; }
      |                                                         ^~~~~~~~~~~~~~~~
src/cpp23__is_scoped_enum.cpp:10:75: error: expected primary-expression before '>' token
   10 | auto _test_cpp23__is_scoped_enum() -> int { return std::is_scoped_enum_v && !std::is_scoped_enum_v ? 0 :

src/cpp23__linalg.cpp:8:10: fatal error: linalg: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp23__mdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp23__move_only_function.cpp:9:54: error: 'move_only_function' is not a member of 'std'
    9 | auto _test_cpp23__move_only_function() -> int { std::move_only_function f = []{ return 42; }; return f() - 42; }
      |                                                      ^~~~~~~~~~~~~~~~~~
src/cpp23__move_only_function.cpp:9:80: error: 'f' was not declared in this scope
    9 | auto _test_cpp23__move_only_function() -> int { std::move_only_function f = []{ return 42; }; return f

src/cpp23__out_ptr.cpp:10:78: error: 'out_ptr' is not a member of 'std'; did you mean 'auto_ptr'?
   10 | auto _test_cpp23__out_ptr() -> int { std::unique_ptr up; alloc_int(std::out_ptr(up)); return *up - 42; }
      |                                                                              ^~~~~~~
      |                                                                              auto_ptr

src/cpp23__print.cpp:10:10: error: 'println' is not a member of 'std'; did you mean 'rintl'?
   10 |     std::println("hello");
      |          ^~~~~~~
      |          rintl

src/cpp23__ranges_as_const.cpp:10:102: error: 'as_const' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_as_const() -> int { std::vector v = {1,2,3}; auto cv = v | std::views::as_const; return *cv.begin() == 1 ? 0 : 1; }
      |                                                                                                      ^~~~~~~~

src/cpp23__ranges_as_rvalue.cpp:10:102: error: 'as_rvalue' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_as_rvalue() -> int { std::vector v = {1,2,3}; auto r = v | std::views::as_rvalue; int s = 0; for (auto x : r) s += x; return s - 6; }
      |                                                                                                      ^~~~~~~~~

src/cpp23__ranges_cartesian_product.cpp:10:142: error: 'cartesian_product' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_cartesian_product() -> int { std::vector a = {1,2}; std::vector b = {3,4}; int n = 0; for (auto [x,y] : std::views::cartesian_product(a, b)) n++; return n == 4 ? 0 : 1; }
      |                                                                                                                                              ^~~~~~~~~~~~~~~~~

src/cpp23__ranges_chunk.cpp:10:111: error: 'chunk' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_chunk() -> int { std::vector v = {1,2,3,4}; int n = 0; for (auto c : v | std::views::chunk(2)) n++; return n == 2 ? 0 : 1; }
      |                                                                                                               ^~~~~

src/cpp23__ranges_chunk_by.cpp:10:116: error: 'chunk_by' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_chunk_by() -> int { std::vector v = {1,1,2,2,3}; int n = 0; for (auto c : v | std::views::chunk_by(std::equal_to<>{})) n++; return n == 3 ? 0 : 1; }
      |                                                                                                                    ^~~~~~~~

src/cpp23__ranges_contains.cpp:10:91: error: 'contains' is not a member of 'std::ranges'
   10 | auto _test_cpp23__ranges_contains() -> int { std::vector v = {1,2,3}; return std::ranges::contains(v, 2) ? 0 : 1; }
      |                                                                                           ^~~~~~~~

src/cpp23__ranges_enumerate.cpp:10:117: error: 'enumerate' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_enumerate() -> int { std::vector v = {10,20,30}; int s = 0; for (auto [i, x] : std::views::enumerate(v)) s += i; return s == 3 ? 0 : 1; }
      |                                                                                                                     ^~~~~~~~~

src/cpp23__ranges_find_last.cpp:10:98: error: 'find_last' is not a member of 'std::ranges'
   10 | auto _test_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/cpp23__ranges_fold.cpp:11:87: error: 'fold_left' is not a member of 'std::ranges'
   11 | auto _test_cpp23__ranges_fold() -> int { std::vector v = {1,2,3}; return std::ranges::fold_left(v, 0, std::plus{}) - 6; }
      |                                                                                       ^~~~~~~~~

src/cpp23__ranges_iota.cpp:10:78: error: 'iota' is not a member of 'std::ranges'; did you mean 'std::iota'?
   10 | auto _test_cpp23__ranges_iota() -> int { std::vector v(5); std::ranges::iota(v, 1); return v[0] == 1 && v[4] == 5 ? 0 : 1; }
      |                                                                              ^~~~
In file included from /home/runner/.platformio/packages/toolchain-xtensa-esp-elf/xtensa-esp-elf/include/c++/14.2.0/numeric:62,
                 from src/cpp23__rang

src/cpp23__ranges_join_with.cpp:10:137: error: 'join_with' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_join_with() -> int { std::vector> v = {{1,2},{3,4}}; int s = 0; for (auto x : v | std::views::join_with(0)) s += x; return s == 10 ? 0 : 1; }
      |                                                                                                                                         ^~~~~~~~~

src/cpp23__ranges_repeat.cpp:9:81: error: 'repeat' is not a member of 'std::views'
    9 | auto _test_cpp23__ranges_repeat() -> int { int n = 0; for (auto x : std::views::repeat(42) | std::views::take(3)) n += x; return n == 126 ? 0 : 1; }
      |                                                                                 ^~~~~~

src/cpp23__ranges_slide.cpp:10:111: error: 'slide' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_slide() -> int { std::vector v = {1,2,3,4}; int n = 0; for (auto w : v | std::views::slide(2)) n++; return n == 3 ? 0 : 1; }
      |                                                                                                               ^~~~~

src/cpp23__ranges_starts_ends_with.cpp:10:126: error: 'starts_with' is not a member of 'std::ranges'
   10 | auto _test_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/cpp23__ranges_stride.cpp:10:116: error: 'stride' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_stride() -> int { std::vector v = {1,2,3,4,5,6}; int s = 0; for (auto x : v | std::views::stride(2)) s += x; return s == 9 ? 0 : 1; }
      |                                                                                                                    ^~~~~~

src/cpp23__ranges_to_container.cpp:10:97: error: 'to' is not a member of 'std::ranges'
   10 | auto _test_cpp23__ranges_to_container() -> int { auto v = std::views::iota(1, 4) | std::ranges::to(); return v.size() == 3 && v[0] == 1 ? 0 : 1; }
      |                                                                                                 ^~
src/cpp23__ranges_to_container.cpp:10:111: error: missing template arguments before '>' token
   10 | auto _test_cpp23__ranges_to_containe

src/cpp23__ranges_zip.cpp:10:132: error: 'zip' is not a member of 'std::views'
   10 | auto _test_cpp23__ranges_zip() -> int { std::vector a = {1,2,3}; std::vector b = {4,5,6}; int s = 0; for (auto [x,y] : std::views::zip(a, b)) s += x + y; return s - 21; }
      |                                                                                                                                    ^~~

src/cpp23__rcu.cpp:8:10: fatal error: rcu: No such file or directory
    8 | #include 
      |          ^~~~~

src/cpp23__reference_from_temporary.cpp:9:67: error: 'reference_constructs_from_temporary_v' is not a member of 'std'
    9 | auto _test_cpp23__reference_from_temporary() -> int { return std::reference_constructs_from_temporary_v ? 0 : 1; }
      |                                                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/cpp23__reference_from_temporary.cpp:9:105: error: expected primary-expression before 'const'
    9 | auto _test_cpp23__referen

src/cpp23__simd_complex.cpp:8:10: fatal error: simd: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp23__simd_permutations.cpp:8:10: fatal error: simd: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp23__spanstream.cpp:9:60: error: 'ospanstream' is not a member of 'std'
    9 | auto _test_cpp23__spanstream() -> int { char buf[32]; std::ospanstream ss(buf); ss << 42; return 0; }
      |                                                            ^~~~~~~~~~~
src/cpp23__spanstream.cpp:9:81: error: 'ss' was not declared in this scope; did you mean 'SS'?
    9 | auto _test_cpp23__spanstream() -> int { char buf[32]; std::ospanstream ss(buf); ss << 42; return 0; }
      |                     

src/cpp23__stacktrace.cpp:9:20: error: 'std::stacktrace' has not been declared
    9 |     auto st = std::stacktrace::current();
      |                    ^~~~~~~~~~

src/cpp23__stdatomic_h.cpp:9:42: error: 'atomic_int' was not declared in this scope
    9 | auto _test_cpp23__stdatomic_h() -> int { atomic_int a = 0; atomic_store(&a, 42); return atomic_load(&a) - 42; }
      |                                          ^~~~~~~~~~
src/cpp23__stdatomic_h.cpp:9:74: error: 'a' was not declared in this scope
    9 | auto _test_cpp23__stdatomic_h() -> int { atomic_int a = 0; atomic_store(&a, 42); return atomic_load(&a) - 42; }
      |                                  

src/cpp23__string_contains.cpp:9:86: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'contains'
    9 | auto _test_cpp23__string_contains() -> int { std::string s = "hello world"; return s.contains("world") ? 0 : 1; }
      |                                                                                      ^~~~~~~~

src/cpp23__string_resize_and_overwrite.cpp:9:75: error: 'std::string' {aka 'class std::__cxx11::basic_string'} has no member named 'resize_and_overwrite'; did you mean '__resize_and_overwrite'?
    9 | auto _test_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/cpp23__to_underlying.cpp:13:17: error: 'to_underlying' is not a member of 'std'
   13 |     return std::to_underlying(Color::Green) - 2;
      |                 ^~~~~~~~~~~~~

src/cpp23__unreachable.cpp:9:80: error: 'unreachable' is not a member of 'std'
    9 | auto _test_cpp23__unreachable() -> int { int x = 1; if (x == 1) return 0; std::unreachable(); }
      |                                                                                ^~~~~~~~~~~
src/cpp23__unreachable.cpp:9:95: error: control reaches end of non-void function [-Werror=return-type]
    9 | auto _test_cpp23__unreachable() -> int { int x = 1; if (x == 1) return 0; std::unreachable(); }
      |    

src/cpp26__pack_indexing.cpp:8:44: error: expected ';' before '...' token
    8 | template using first_t = Ts...[0];
      |                                            ^~~
      |                                            ;
src/cpp26__pack_indexing.cpp:9:44: error: 'first_t' was not declared in this scope; did you mean 'List_t'?
    9 | auto _test_cpp26__pack_indexing() -> int { first_t v = 42; return v - 42; }
      |                                            ^~~~

src/cpp26__variadic_friend.cpp:9:46: error: expected unqualified-id before '...' token
    9 | template struct S { friend Ts...; int x = 42; };
      |                                              ^~~

src/cpp26__aligned_accessor.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~

src/cpp26__constexpr_flat_map.cpp:8:10: fatal error: flat_map: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp26__constexpr_flat_set.cpp:8:10: fatal error: flat_set: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~

src/cpp26__contracts_lib.cpp:8:10: fatal error: contracts: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp26__debugging.cpp:8:10: fatal error: debugging: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~

src/cpp26__define_static.cpp:8:10: fatal error: meta: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp26__inplace_vector.cpp:8:10: fatal error: inplace_vector: No such file or directory
    8 | #include 
      |          ^~~~~~~~~~~~~~~~

src/cpp26__reflection.cpp:8:10: fatal error: meta: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp26__saturation_arithmetic.cpp:10:64: error: 'add_sat' is not a member of 'std'
   10 | auto _test_cpp26__saturation_arithmetic() -> int { return std::add_sat(200, 200) == 255 ? 0 : 1; }
      |                                                                ^~~~~~~
src/cpp26__saturation_arithmetic.cpp:10:79: error: expected primary-expression before '>' token
   10 | auto _test_cpp26__saturation_arithmetic() -> int { return std::add_sat(200, 200) == 255 ? 0 : 1; }
      |

src/cpp26__simd.cpp:8:10: fatal error: simd: No such file or directory
    8 | #include 
      |          ^~~~~~

src/cpp26__submdspan.cpp:8:10: fatal error: mdspan: No such file or directory
    8 | #include 
      |          ^~~~~~~~