generic-library/cxx
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Reverted previous fix to is_convertible as it caused more problems than it fixed. But this reverted fix will only matter for non-clang compilers. Installed __is_convertible_to for clang.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@124429 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Howard Hinnant 2011-01-27 21:00:00 +00:00
parent 497ac97247
commit 091c5ace78
1 changed files with 15 additions and 0 deletions
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15
include/type_traits
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@ -598,9 +598,22 @@ template <class _Tp> struct _LIBCPP_VISIBLE is_abstract : public __libcpp_abstra
// is_convertible // is_convertible
#ifdef __clang__
template <class _T1, class _T2> struct _LIBCPP_VISIBLE is_convertible
: public integral_constant<bool, __is_convertible_to(_T1, _T2)> {};
{
};
#else // __clang__
namespace __is_convertible_imp namespace __is_convertible_imp
{ {
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp> char __test(const volatile typename remove_reference<_Tp>::type&&);
#else
template <class _Tp> char __test(_Tp); template <class _Tp> char __test(_Tp);
#endif
template <class _Tp> __two __test(...); template <class _Tp> __two __test(...);
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
template <class _Tp> _Tp&& __source(); template <class _Tp> _Tp&& __source();
@ -694,6 +707,8 @@ template <class _T1, class _T2> struct _LIBCPP_VISIBLE is_convertible
static const size_t __complete_check2 = __is_convertible_check<_T2>::__v; static const size_t __complete_check2 = __is_convertible_check<_T2>::__v;
}; };
#endif // __clang__
// is_base_of // is_base_of
// (C) Copyright Rani Sharoni 2003. // (C) Copyright Rani Sharoni 2003.