[libcxx-commits] [libcxx] 99b7c2b - [libc++] Remove conditional usage of rvalue references in C++03
Louis Dionne via libcxx-commits
libcxx-commits at lists.llvm.org
Fri Mar 10 11:44:03 PST 2023
Author: Louis Dionne
Date: 2023-03-10T14:43:18-05:00
New Revision: 99b7c2bad3e5898353223c4682dce8ce31a69f30
URL: https://github.com/llvm/llvm-project/commit/99b7c2bad3e5898353223c4682dce8ce31a69f30
DIFF: https://github.com/llvm/llvm-project/commit/99b7c2bad3e5898353223c4682dce8ce31a69f30.diff
LOG: [libc++] Remove conditional usage of rvalue references in C++03
This one is easy -- Clang supports rvalue references in C++03 mode, so
we should be able to remove that conditional.
As a fly-by fix, turn a few static_casts to std::forward.
Differential Revision: https://reviews.llvm.org/D145701
Added:
Modified:
libcxx/include/exception
Removed:
################################################################################
diff --git a/libcxx/include/exception b/libcxx/include/exception
index 2b08f11fbf332..2b5cfd52ae186 100644
--- a/libcxx/include/exception
+++ b/libcxx/include/exception
@@ -87,6 +87,7 @@ template <class E> void rethrow_if_nested(const E& e);
#include <__type_traits/is_copy_constructible.h>
#include <__type_traits/is_final.h>
#include <__type_traits/is_polymorphic.h>
+#include <__utility/forward.h>
#include <cstddef>
#include <cstdlib>
#include <version>
@@ -313,20 +314,16 @@ struct __throw_with_nested<_Tp, _Up, true> {
_LIBCPP_NORETURN static inline _LIBCPP_INLINE_VISIBILITY void
__do_throw(_Tp&& __t)
{
- throw __nested<_Up>(static_cast<_Tp&&>(__t));
+ throw __nested<_Up>(std::forward<_Tp>(__t));
}
};
template <class _Tp, class _Up>
struct __throw_with_nested<_Tp, _Up, false> {
_LIBCPP_NORETURN static inline _LIBCPP_INLINE_VISIBILITY void
-#ifndef _LIBCPP_CXX03_LANG
__do_throw(_Tp&& __t)
-#else
- __do_throw (_Tp& __t)
-#endif // _LIBCPP_CXX03_LANG
{
- throw static_cast<_Tp&&>(__t);
+ throw std::forward<_Tp>(__t);
}
};
#endif
@@ -343,7 +340,7 @@ throw_with_nested(_Tp&& __t)
is_class<_Up>::value &&
!is_base_of<nested_exception, _Up>::value &&
!__libcpp_is_final<_Up>::value>::
- __do_throw(static_cast<_Tp&&>(__t));
+ __do_throw(std::forward<_Tp>(__t));
#else
((void)__t);
// FIXME: Make this abort
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