diff options
Diffstat (limited to 'src/google/protobuf/arena.h')
| -rw-r--r-- | src/google/protobuf/arena.h | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/src/google/protobuf/arena.h b/src/google/protobuf/arena.h index 074a9e54..16e0d50e 100644 --- a/src/google/protobuf/arena.h +++ b/src/google/protobuf/arena.h @@ -38,7 +38,16 @@ #if __cplusplus >= 201103L #include <google/protobuf/stubs/type_traits.h> #endif +#if defined(_MSC_VER) && !_HAS_EXCEPTIONS +// Work around bugs in MSVC <typeinfo> header when _HAS_EXCEPTIONS=0. +#include <exception> #include <typeinfo> +namespace std { +using type_info = ::type_info; +} +#else +#include <typeinfo> +#endif #include <google/protobuf/stubs/atomic_sequence_num.h> #include <google/protobuf/stubs/atomicops.h> @@ -533,15 +542,15 @@ class LIBPROTOBUF_EXPORT Arena { static const size_t kHeaderSize = sizeof(Block); static google::protobuf::internal::SequenceNumber lifecycle_id_generator_; -#ifdef PROTOBUF_USE_DLLS - // Thread local variables cannot be exposed through DLL interface but we can - // wrap them in static functions. - static ThreadCache& thread_cache(); -#elif defined(GOOGLE_PROTOBUF_NO_THREADLOCAL) +#if defined(GOOGLE_PROTOBUF_NO_THREADLOCAL) // Android ndk does not support GOOGLE_THREAD_LOCAL keyword so we use a custom thread // local storage class we implemented. // iOS also does not support the GOOGLE_THREAD_LOCAL keyword. static ThreadCache& thread_cache(); +#elif defined(PROTOBUF_USE_DLLS) + // Thread local variables cannot be exposed through DLL interface but we can + // wrap them in static functions. + static ThreadCache& thread_cache(); #else static GOOGLE_THREAD_LOCAL ThreadCache thread_cache_; static ThreadCache& thread_cache() { return thread_cache_; } @@ -581,11 +590,13 @@ class LIBPROTOBUF_EXPORT Arena { template<typename U> static double DestructorSkippable(...); + // The raw_skippable_value const bool variable is separated from the typedef + // line below as a work-around of an NVCC 7.0 (and earlier) compiler bug. + static const bool raw_skippable_value = + sizeof(DestructorSkippable<const T>(static_cast<const T*>(0))) == + sizeof(char) || google::protobuf::internal::has_trivial_destructor<T>::value == true; // This will resolve to either google::protobuf::internal::true_type or google::protobuf::internal::false_type. - typedef google::protobuf::internal::integral_constant<bool, - sizeof(DestructorSkippable<const T>(static_cast<const T*>(0))) == - sizeof(char) || google::protobuf::internal::has_trivial_destructor<T>::value == true> - type; + typedef google::protobuf::internal::integral_constant<bool, raw_skippable_value> type; static const type value; }; |