@@ -3546,8 +3546,7 @@ _GLIBCXX_END_NAMESPACE_CXX11
* greater than, or incomparable with `__rhs`.
*/
template<typename _CharT, typename _Traits, typename _Alloc>
- _GLIBCXX20_CONSTEXPR
- inline auto
+ constexpr auto
operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
const basic_string<_CharT, _Traits, _Alloc>& __rhs) noexcept
-> decltype(__detail::__char_traits_cmp_cat<_Traits>(0))
@@ -3561,8 +3560,7 @@ _GLIBCXX_END_NAMESPACE_CXX11
* greater than, or incomparable with `__rhs`.
*/
template<typename _CharT, typename _Traits, typename _Alloc>
- _GLIBCXX20_CONSTEXPR
- inline auto
+ constexpr auto
operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
const _CharT* __rhs) noexcept
-> decltype(__detail::__char_traits_cmp_cat<_Traits>(0))
@@ -1,5 +1,6 @@
// { dg-options "-std=gnu++20" }
// { dg-do compile { target c++20 } }
+// { dg-require-effective-target cxx11-abi }
#include <string>
#include <testsuite_hooks.h>
@@ -26,6 +26,12 @@
# define NOTHROW
#endif
+#if __cplusplus >= 202002L
+# define CONSTEXPR constexpr
+#else
+# define CONSTEXPR
+#endif
+
namespace std {
// lib.char.traits, character traits:
template<class charT>
@@ -40,33 +46,52 @@ _GLIBCXX_BEGIN_NAMESPACE_CXX11
_GLIBCXX_END_NAMESPACE_CXX11
template<class charT, class traits, class Allocator>
+ CONSTEXPR
basic_string<charT,traits,Allocator>
operator+(const basic_string<charT,traits,Allocator>& lhs,
const basic_string<charT,traits,Allocator>& rhs);
template<class charT, class traits, class Allocator>
+ CONSTEXPR
basic_string<charT,traits,Allocator>
operator+(const charT* lhs,
const basic_string<charT,traits,Allocator>& rhs);
template<class charT, class traits, class Allocator>
+ CONSTEXPR
basic_string<charT,traits,Allocator>
operator+(charT lhs, const basic_string<charT,traits,Allocator>& rhs);
template<class charT, class traits, class Allocator>
+ CONSTEXPR
basic_string<charT,traits,Allocator>
operator+(const basic_string<charT,traits,Allocator>& lhs,
const charT* rhs);
template<class charT, class traits, class Allocator>
+ CONSTEXPR
basic_string<charT,traits,Allocator>
operator+(const basic_string<charT,traits,Allocator>& lhs, charT rhs);
template<class charT, class traits, class Allocator>
+ CONSTEXPR
bool operator==(const basic_string<charT,traits,Allocator>& lhs,
const basic_string<charT,traits,Allocator>& rhs) NOTHROW;
template<class charT, class traits, class Allocator>
- bool operator==(const charT* lhs,
- const basic_string<charT,traits,Allocator>& rhs);
- template<class charT, class traits, class Allocator>
+ CONSTEXPR
bool operator==(const basic_string<charT,traits,Allocator>& lhs,
const charT* rhs);
+
+#if __cpp_lib_three_way_comparison
+ template<class charT, class traits, class Allocator>
+ constexpr
+ bool operator<=>(const basic_string<charT,traits,Allocator>& lhs,
+ const basic_string<charT,traits,Allocator>& rhs) NOTHROW;
+ template<class charT, class traits, class Allocator>
+ constexpr
+ bool operator<=>(const basic_string<charT,traits,Allocator>& lhs,
+ const charT* rhs);
+#else
+ template<class charT, class traits, class Allocator>
+ CONSTEXPR
+ bool operator==(const charT* lhs,
+ const basic_string<charT,traits,Allocator>& rhs);
template<class charT, class traits, class Allocator>
bool operator!=(const basic_string<charT,traits,Allocator>& lhs,
const basic_string<charT,traits,Allocator>& rhs) NOTHROW;
@@ -114,9 +139,11 @@ _GLIBCXX_END_NAMESPACE_CXX11
template<class charT, class traits, class Allocator>
bool operator>=(const charT* lhs,
const basic_string<charT,traits,Allocator>& rhs);
+#endif
// lib.string.special:
template<class charT, class traits, class Allocator>
+ CONSTEXPR
void swap(basic_string<charT,traits,Allocator>& lhs,
basic_string<charT,traits,Allocator>& rhs)
#if __cplusplus >= 201103L