diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__utility/exchange.h')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__utility/exchange.h | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/contrib/llvm-project/libcxx/include/__utility/exchange.h b/contrib/llvm-project/libcxx/include/__utility/exchange.h index 819549a9dcb4..72312c06b588 100644 --- a/contrib/llvm-project/libcxx/include/__utility/exchange.h +++ b/contrib/llvm-project/libcxx/include/__utility/exchange.h @@ -25,14 +25,12 @@ _LIBCPP_PUSH_MACROS _LIBCPP_BEGIN_NAMESPACE_STD #if _LIBCPP_STD_VER >= 14 -template<class _T1, class _T2 = _T1> -inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 -_T1 exchange(_T1& __obj, _T2&& __new_value) - noexcept(is_nothrow_move_constructible<_T1>::value && is_nothrow_assignable<_T1&, _T2>::value) -{ - _T1 __old_value = std::move(__obj); - __obj = std::forward<_T2>(__new_value); - return __old_value; +template <class _T1, class _T2 = _T1> +inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _T1 exchange(_T1& __obj, _T2&& __new_value) noexcept( + is_nothrow_move_constructible<_T1>::value && is_nothrow_assignable<_T1&, _T2>::value) { + _T1 __old_value = std::move(__obj); + __obj = std::forward<_T2>(__new_value); + return __old_value; } #endif // _LIBCPP_STD_VER >= 14 |