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Fix const correctness bug in bind involving reference_wrapper found by Jonathan Sauer 

llvm-svn: 131852
This commit is contained in:
Howard Hinnant 2011-05-22 15:07:43 +00:00
parent 408cfef6f0
commit 2fa07ae9a0
1 changed files with 12 additions and 10 deletions
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22
libcxx/include/functional
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@ -1567,24 +1567,31 @@ __mu(_Ti& __ti, _Uj& __uj)
return __ti;
}
template <class _Ti, bool IsBindEx, bool IsPh, class _TupleUj>
template <class _Ti, bool IsReferenceWrapper, bool IsBindEx, bool IsPh,
class _TupleUj>
struct ____mu_return;
template <class _Ti, class ..._Uj>
struct ____mu_return<_Ti, true, false, tuple<_Uj...> >
struct ____mu_return<_Ti, false, true, false, tuple<_Uj...> >
{
typedef typename __invoke_of<_Ti&, _Uj...>::type type;
};
template <class _Ti, class _TupleUj>
struct ____mu_return<_Ti, false, true, _TupleUj>
struct ____mu_return<_Ti, false, false, true, _TupleUj>
{
typedef typename tuple_element<is_placeholder<_Ti>::value - 1,
_TupleUj>::type&& type;
};
template <class _Ti, class _TupleUj>
struct ____mu_return<_Ti, false, false, _TupleUj>
struct ____mu_return<_Ti, true, false, false, _TupleUj>
{
typedef typename _Ti::type& type;
};
template <class _Ti, class _TupleUj>
struct ____mu_return<_Ti, false, false, false, _TupleUj>
{
typedef _Ti& type;
};
@ -1592,18 +1599,13 @@ struct ____mu_return<_Ti, false, false, _TupleUj>
template <class _Ti, class _TupleUj>
struct __mu_return
: public ____mu_return<_Ti,
__is_reference_wrapper<_Ti>::value,
is_bind_expression<_Ti>::value,
0 < is_placeholder<_Ti>::value,
_TupleUj>
{
};
template <class _Ti, class _TupleUj>
struct __mu_return<reference_wrapper<_Ti>, _TupleUj>
{
typedef _Ti& type;
};
template <class _F, class _BoundArgs, class _TupleUj>
struct __bind_return;