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Constrain __bind functor constructor such that it won't accidentally get used as a copy constructor from a non-const lvalue. Fixes <rdar://problem/11359080>.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@156182 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant 2012-05-04 17:21:02 +00:00
parent f07a529b77
commit d2da6d2322
1 changed files with 5 additions and 1 deletions
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6
include/functional
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@ -1707,7 +1707,11 @@ public:
#endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
template <class _Gp, class ..._BA> template <class _Gp, class ..._BA,
class = typename enable_if
<
is_constructible<_Fd, _Gp>::value
>::type>
_LIBCPP_INLINE_VISIBILITY _LIBCPP_INLINE_VISIBILITY
explicit __bind(_Gp&& __f, _BA&& ...__bound_args) explicit __bind(_Gp&& __f, _BA&& ...__bound_args)
: __f_(_VSTD::forward<_Gp>(__f)), : __f_(_VSTD::forward<_Gp>(__f)),