https://gcc.gnu.org/g:4886afeb5c35e323714d4763f20858ee94edce8c
commit r16-8407-g4886afeb5c35e323714d4763f20858ee94edce8c Author: Jonathan Wakely <[email protected]> Date: Wed Apr 1 15:25:14 2026 +0100 libstdc++: Check right value of __cpp_lib_format for dynamic_string This doesn't matter in practice, but strictly speaking the right value for defining std::dynamic_format is 202603 not 202311 (which was the macro value for the old name, std::runtime_format). libstdc++-v3/ChangeLog: * include/std/format (dynamic_format): Check new value for feature test macro. Reviewed-by: Tomasz Kamiński <[email protected]> Diff: --- libstdc++-v3/include/std/format | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libstdc++-v3/include/std/format b/libstdc++-v3/include/std/format index 2bcd06822b75..eca5bd213aa0 100644 --- a/libstdc++-v3/include/std/format +++ b/libstdc++-v3/include/std/format @@ -195,7 +195,7 @@ namespace __format = basic_format_string<wchar_t, type_identity_t<_Args>...>; #endif -#if __cpp_lib_format >= 202311L // >= C++26 +#if __cpp_lib_format >= 202603L // >= C++26 [[__gnu__::__always_inline__]] inline __format::_Dynamic_format_string<char> dynamic_format(string_view __fmt) noexcept
