diff options
Diffstat (limited to 'source/blender/blenlib/BLI_memory_utils.hh')
| -rw-r--r-- | source/blender/blenlib/BLI_memory_utils.hh | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/source/blender/blenlib/BLI_memory_utils.hh b/source/blender/blenlib/BLI_memory_utils.hh index 940542c9f1d..c2ad3ea761a 100644 --- a/source/blender/blenlib/BLI_memory_utils.hh +++ b/source/blender/blenlib/BLI_memory_utils.hh @@ -19,6 +19,21 @@ namespace blender { /** + * Under some circumstances #std::is_trivial_v<T> is false even though we know that the type is + * actually trivial. Using that extra knowledge allows for some optimizations. + */ +template<typename T> inline constexpr bool is_trivial_extended_v = std::is_trivial_v<T>; +template<typename T> +inline constexpr bool is_trivially_destructible_extended_v = is_trivial_extended_v<T> || + std::is_trivially_destructible_v<T>; +template<typename T> +inline constexpr bool is_trivially_copy_constructible_extended_v = + is_trivial_extended_v<T> || std::is_trivially_copy_constructible_v<T>; +template<typename T> +inline constexpr bool is_trivially_move_constructible_extended_v = + is_trivial_extended_v<T> || std::is_trivially_move_constructible_v<T>; + +/** * Call the destructor on n consecutive values. For trivially destructible types, this does * nothing. * @@ -38,7 +53,7 @@ template<typename T> void destruct_n(T *ptr, int64_t n) /* This is not strictly necessary, because the loop below will be optimized away anyway. It is * nice to make behavior this explicitly, though. */ - if (std::is_trivially_destructible_v<T>) { + if (is_trivially_destructible_extended_v<T>) { return; } |