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Use _GLIBCXX_NOEXCEPT_IF for std::swap

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* include/bits/move.h (swap(T&, T&), swap(T (&)[N], T (&)[N])): Use
	_GLIBCXX_NOEXCEPT_IF to simplify declarations.

From-SVN: r270650
This commit is contained in:
Jonathan Wakely 2019-04-29 14:25:38 +01:00 committed by Jonathan Wakely
parent 7bbdd8d13e
commit 81912fb385
2 changed files with 8 additions and 7 deletions
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3
libstdc++-v3/ChangeLog
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@ -1,5 +1,8 @@
2019-04-29 Jonathan Wakely <jwakely@redhat.com>
* include/bits/move.h (swap(T&, T&), swap(T (&)[N], T (&)[N])): Use
_GLIBCXX_NOEXCEPT_IF to simplify declarations.
PR libstdc++/71312
* src/c++11/shared_ptr.cc (get_mutex): Align pool mutexes to 64 bytes.

12
libstdc++-v3/include/bits/move.h
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@ -179,13 +179,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
typename enable_if<__and_<__not_<__is_tuple_like<_Tp>>,
is_move_constructible<_Tp>,
is_move_assignable<_Tp>>::value>::type
swap(_Tp& __a, _Tp& __b)
noexcept(__and_<is_nothrow_move_constructible<_Tp>,
is_nothrow_move_assignable<_Tp>>::value)
#else
void
swap(_Tp& __a, _Tp& __b)
#endif
swap(_Tp& __a, _Tp& __b)
_GLIBCXX_NOEXCEPT_IF((__and_<is_nothrow_move_constructible<_Tp>,
is_nothrow_move_assignable<_Tp>>::value))
{
// concept requirements
__glibcxx_function_requires(_SGIAssignableConcept<_Tp>)
@ -202,12 +201,11 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
inline
#if __cplusplus >= 201103L
typename enable_if<__is_swappable<_Tp>::value>::type
swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
noexcept(__is_nothrow_swappable<_Tp>::value)
#else
void
swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
#endif
swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
_GLIBCXX_NOEXCEPT_IF(__is_nothrow_swappable<_Tp>::value)
{
for (size_t __n = 0; __n < _Nm; ++__n)
swap(__a[__n], __b[__n]);