diff options
Diffstat (limited to 'src/google/protobuf/stubs/type_traits.h')
| -rw-r--r-- | src/google/protobuf/stubs/type_traits.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/src/google/protobuf/stubs/type_traits.h b/src/google/protobuf/stubs/type_traits.h index f5365c38..b58cae3f 100644 --- a/src/google/protobuf/stubs/type_traits.h +++ b/src/google/protobuf/stubs/type_traits.h @@ -103,7 +103,7 @@ template <class T> struct remove_reference; template <class T> struct add_reference; template <class T> struct remove_pointer; template <class T, class U> struct is_same; -#if !defined(_MSC_VER) && !(defined(__GNUC__) && __GNUC__ <= 3) +#if !(defined(__GNUC__) && __GNUC__ <= 3) template <class From, class To> struct is_convertible; #endif @@ -322,7 +322,7 @@ template<typename T, typename U> struct is_same : public false_type { }; template<typename T> struct is_same<T, T> : public true_type { }; // Specified by TR1 [4.6] Relationships between types -#if !defined(_MSC_VER) && !(defined(__GNUC__) && __GNUC__ <= 3) +#if !(defined(__GNUC__) && __GNUC__ <= 3) namespace type_traits_internal { // This class is an implementation detail for is_convertible, and you @@ -339,6 +339,9 @@ struct ConvertHelper { static small_ Test(To); static big_ Test(...); static From Create(); + enum { + value = sizeof(Test(Create())) == sizeof(small_) + }; }; } // namespace type_traits_internal @@ -346,9 +349,7 @@ struct ConvertHelper { template <typename From, typename To> struct is_convertible : integral_constant<bool, - sizeof(type_traits_internal::ConvertHelper<From, To>::Test( - type_traits_internal::ConvertHelper<From, To>::Create())) - == sizeof(small_)> { + type_traits_internal::ConvertHelper<From, To>::value> { }; #endif |