diff options
Diffstat (limited to 'include/llvm/Support/type_traits.h')
| -rw-r--r-- | include/llvm/Support/type_traits.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/llvm/Support/type_traits.h b/include/llvm/Support/type_traits.h index 70953a9..45465ae 100644 --- a/include/llvm/Support/type_traits.h +++ b/include/llvm/Support/type_traits.h @@ -28,9 +28,17 @@ namespace llvm { /// type can be copied around with memcpy instead of running ctors etc. template <typename T> struct isPodLike { -#if __has_feature(is_trivially_copyable) + // std::is_trivially_copyable is available in libc++ with clang, libstdc++ + // that comes with GCC 5. +#if (__has_feature(is_trivially_copyable) && defined(_LIBCPP_VERSION)) || \ + (defined(__GNUC__) && __GNUC__ >= 5) // If the compiler supports the is_trivially_copyable trait use it, as it // matches the definition of isPodLike closely. + static const bool value = std::is_trivially_copyable<T>::value; +#elif __has_feature(is_trivially_copyable) + // Use the internal name if the compiler supports is_trivially_copyable but we + // don't know if the standard library does. This is the case for clang in + // conjunction with libstdc++ from GCC 4.x. static const bool value = __is_trivially_copyable(T); #else // If we don't know anything else, we can (at least) assume that all non-class |