forked from OSchip/llvm-project
Yonggang Luo fixed gcc version checking for type_traits support.
llvm-svn: 113487
This commit is contained in:
Howard Hinnant
parent
19e11f1db7
commit
7d1c2a0f3a
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@ -264,28 +264,32 @@ template <class _Tp> struct is_reference<_Tp&> : public true_type {};
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template <class _Tp> struct is_reference<_Tp&&> : public true_type {};
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#endif
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#if defined(__clang__) || (__GNUC__ > 4) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
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#define _LIBCPP_HAS_TYPE_TRAITS
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#endif
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// is_union
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#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct is_union
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: public integral_constant<bool, __is_union(_Tp)> {};
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#else // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct __libcpp_union : public false_type {};
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template <class _Tp> struct is_union : public __libcpp_union<typename remove_cv<_Tp>::type> {};
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#endif // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// is_class
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#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct is_class
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: public integral_constant<bool, __is_class(_Tp)> {};
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#else // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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namespace __is_class_imp
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{
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@ -296,7 +300,7 @@ template <class _Tp> __two __test(...);
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template <class _Tp> struct is_class
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: public integral_constant<bool, sizeof(__is_class_imp::__test<_Tp>(0)) == 1 && !is_union<_Tp>::value> {};
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#endif // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// is_function
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@ -342,12 +346,12 @@ template <class _Tp> struct is_member_object_pointer
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// is_enum
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#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct is_enum
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: public integral_constant<bool, __is_enum(_Tp)> {};
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#else // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct is_enum
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: public integral_constant<bool, !is_void<_Tp>::value &&
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@ -361,7 +365,7 @@ template <class _Tp> struct is_enum
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!is_class<_Tp>::value &&
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!is_function<_Tp>::value > {};
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#endif // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// is_arithmetic
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@ -742,12 +746,12 @@ template <class _Tp> struct is_polymorphic : public __libcpp_polymorphic<_Tp> {}
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// has_trivial_default_constructor
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#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_trivial_default_constructor
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: public integral_constant<bool, __has_trivial_constructor(_Tp)> {};
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#else // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct __has_trivial_default_constructor
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: public integral_constant<bool, is_scalar<_Tp>::value> {};
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@ -755,52 +759,50 @@ template <class _Tp> struct __has_trivial_default_constructor
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template <class _Tp> struct has_trivial_default_constructor
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: public __has_trivial_default_constructor<typename remove_all_extents<_Tp>::type> {};
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#endif // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// has_nothrow_default_constructor
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#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_nothrow_default_constructor
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: public integral_constant<bool, __has_nothrow_constructor(_Tp)> {};
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#else // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_nothrow_default_constructor
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: public has_trivial_default_constructor<_Tp> {};
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#endif // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// has_trivial_copy_constructor
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#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_trivial_copy_constructor
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: public integral_constant<bool, __has_trivial_copy(_Tp)> {};
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#else // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_trivial_copy_constructor
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: public integral_constant<bool, is_scalar<_Tp>::value ||
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is_reference<_Tp>::value> {};
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#endif // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// has_nothrow_copy_constructor
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#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_nothrow_copy_constructor
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: public integral_constant<bool, __has_nothrow_copy(_Tp)> {};
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#else // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_nothrow_copy_constructor
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: public has_trivial_copy_constructor<_Tp> {};
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#endif // __GNUC__ >= 4 && __GNUC_MINOR__ >= 3 || defined(__clang__)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// has_nothrow_move_constructor
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@ -808,41 +810,41 @@ template <class _Tp> struct has_nothrow_move_constructor : public has_nothrow_co
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// has_trivial_copy_assign
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#if defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_trivial_copy_assign
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: public integral_constant<bool, __has_trivial_assign(_Tp)> {};
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#else
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_trivial_copy_assign
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: public integral_constant<bool, is_scalar<_Tp>::value &&
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!is_const<_Tp>::value> {};
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#endif // defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// has_nothrow_copy_assign
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#if defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_nothrow_copy_assign
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: public integral_constant<bool, __has_nothrow_assign(_Tp)> {};
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#else // defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_nothrow_copy_assign
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: public has_trivial_copy_assign<_Tp> {};
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#endif // defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// has_trivial_destructor
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#if defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_trivial_destructor
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: public integral_constant<bool, __has_trivial_destructor(_Tp)> {};
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#else // defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct __libcpp_trivial_destructor
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: public integral_constant<bool, is_scalar<_Tp>::value ||
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@ -851,36 +853,36 @@ template <class _Tp> struct __libcpp_trivial_destructor
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template <class _Tp> struct has_trivial_destructor
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: public __libcpp_trivial_destructor<typename remove_all_extents<_Tp>::type> {};
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#endif // defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// has_virtual_destructor
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#if defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_virtual_destructor
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: public integral_constant<bool, __has_virtual_destructor(_Tp)> {};
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#else // defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct has_virtual_destructor : public false_type {};
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#endif // defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// is_pod
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#if defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#ifdef _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct is_pod
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: public integral_constant<bool, __is_pod(_Tp)> {};
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#else // defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#else // _LIBCPP_HAS_TYPE_TRAITS
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template <class _Tp> struct is_pod : public integral_constant<bool, has_trivial_default_constructor<_Tp>::value &&
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has_trivial_copy_constructor<_Tp>::value &&
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has_trivial_copy_assign<_Tp>::value &&
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has_trivial_destructor<_Tp>::value> {};
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#endif // defined(__clang__) || (__GNUC__ >= 4 && __GNUC_MINOR__ >= 3)
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#endif // _LIBCPP_HAS_TYPE_TRAITS
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// alignment_of
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