Tested x86_64-linux. Pushed to trunk. Will backport to gcc-14 too.
-- >8 --
In r14-5689-g1fa85dcf656e2f I added std::span::at and made the correct
changes to the __cpp_lib_span macro (with tests for the correct value in
C++20/23/26). But I didn't make the declaration of std::span::at
actually depend on the macro, so it was defined for C++20 and C++23, not
only for C++26. This fixes that oversight.
libstdc++-v3/ChangeLog:
PR libstdc++/115335
* include/std/span (span::at): Guard with feature test macro.
---
libstdc++-v3/include/std/span | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libstdc++-v3/include/std/span b/libstdc++-v3/include/std/span
index 43e9cf82a54..00fc5279152 100644
--- a/libstdc++-v3/include/std/span
+++ b/libstdc++-v3/include/std/span
@@ -287,6 +287,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
return *(this->_M_ptr + __idx);
}
+#if __cpp_lib_span >= 202311L // >= C++26
[[nodiscard]]
constexpr reference
at(size_type __idx) const
@@ -296,6 +297,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
"of size %zu"), __idx, this->size());
return *(this->_M_ptr + __idx);
}
+#endif
[[nodiscard]]
constexpr pointer
--
2.45.1
