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SFINAE __bit_iterator such that it will only get instantiated with a container that has the nested type __storage_type. This prevents accidental instantiation such as in http://llvm.org/bugs/show_bug.cgi?id=12755. This fixes http://llvm.org/bugs/show_bug.cgi?id=12755.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@156308 91177308-0d34-0410-b5e6-96231b3b80d8
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Howard Hinnant
2012-05-07 16:50:38 +00:00
parent d2da6d2322
commit f867f6326b
3 changed files with 7 additions and 6 deletions
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5
include/__bit_reference
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@@ -22,7 +22,7 @@
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Cp, bool _IsConst> class __bit_iterator;
template <class _Cp, bool _IsConst, typename _Cp::__storage_type = 0> class __bit_iterator;
template <class _Cp> class __bit_const_reference;
template <class _Tp>
@@ -1057,7 +1057,8 @@ equal(__bit_iterator<_Cp, _IC1> __first1, __bit_iterator<_Cp, _IC1> __last1, __b
return __equal_unaligned(__first1, __last1, __first2);
}
template <class _Cp, bool _IsConst>
template <class _Cp, bool _IsConst,
typename _Cp::__storage_type>
class __bit_iterator
{
public: