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Experimental support for a meaningful __is_swappable<T>::value. This does not appear to be strictly needed for correct functioning of the library. If it causes any problems, I'd rather pull it sooner rather than later.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@132421 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant
2011-06-01 19:59:32 +00:00
parent d737382dfd
commit aabf28721b
3 changed files with 16 additions and 3 deletions
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6
include/array
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@@ -270,7 +270,11 @@ operator>=(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
template <class _Tp, size_t _Size>
_LIBCPP_INLINE_VISIBILITY inline
void
typename enable_if
<
__is_swappable<_Tp>::value,
void
>::type
swap(const array<_Tp, _Size>& __x, const array<_Tp, _Size>& __y)
_NOEXCEPT_(__is_nothrow_swappable<_Tp>::value)
{