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| author | Eric Fiselier <eric@efcs.ca> | 2015-03-19 21:11:02 +0000 |
|---|---|---|
| committer | Eric Fiselier <eric@efcs.ca> | 2015-03-19 21:11:02 +0000 |
| commit | d4e0263e0aa501948853e00d8a59426cd1c3a6b5 (patch) | |
| tree | 89ac2ea0880d881bbd5581ca9ea96d4fd3c5b60b /libcxx | |
| parent | dcb54db8090f8e2a10ef3b86b193f3e6b28265cf (diff) | |
| download | bcm5719-llvm-d4e0263e0aa501948853e00d8a59426cd1c3a6b5.tar.gz bcm5719-llvm-d4e0263e0aa501948853e00d8a59426cd1c3a6b5.zip | |
Create macro to allow testing of is_convertible without the compiler builtin.
Summary: This patch also fixes one test case that failed in the library version of is_convertible.
Reviewers: mclow.lists, EricWF
Reviewed By: EricWF
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D8456
llvm-svn: 232764
Diffstat (limited to 'libcxx')
| -rw-r--r-- | libcxx/include/type_traits | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libcxx/include/type_traits b/libcxx/include/type_traits index 0655a685a2e..184926a50b6 100644 --- a/libcxx/include/type_traits +++ b/libcxx/include/type_traits @@ -838,7 +838,7 @@ struct _LIBCPP_TYPE_VIS_ONLY is_base_of // is_convertible -#if __has_feature(is_convertible_to) +#if __has_feature(is_convertible_to) && !defined(_LIBCPP_USE_IS_CONVERTIBLE_FALLBACK) template <class _T1, class _T2> struct _LIBCPP_TYPE_VIS_ONLY is_convertible : public integral_constant<bool, __is_convertible_to(_T1, _T2) && @@ -900,6 +900,7 @@ struct __is_convertible template <class _T1, class _T2> struct __is_convertible<_T1, _T2, 1, 0> : false_type {}; template <class _T1> struct __is_convertible<_T1, const _T1&, 1, 0> : true_type {}; +template <class _T1> struct __is_convertible<const _T1, const _T1&, 1, 0> : true_type {}; #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES template <class _T1> struct __is_convertible<_T1, _T1&&, 1, 0> : true_type {}; template <class _T1> struct __is_convertible<_T1, const _T1&&, 1, 0> : true_type {}; |
