Introduce SkArenaAlloc - should be fast for POD types and RAII for types with dtors.

- Implementation.
- Use in SkLinearPipeline.

TBR=mtklein@google.com

Change-Id: Ie014184469b217132b0307b5a9ae40c0c60e5fc9
Reviewed-on: https://skia-review.googlesource.com/6921
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Herb Derby <herb@google.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/private/SkTLogic.h b/include/private/SkTLogic.h
index 00a5aad5e7..ee72549c85 100644
--- a/include/private/SkTLogic.h
+++ b/include/private/SkTLogic.h
@@ -57,8 +57,10 @@ template <typename... T> using common_type_t = typename std::common_type<T...>::
 template <typename T> struct underlying_type {
     using type = __underlying_type(T);
 };
+template <typename T>using is_trivially_destructible<T> = std::has_trivial_destructor<T>;
 #else
 template <typename T> using underlying_type = std::underlying_type<T>;
+template <typename T> using is_trivially_destructible = std::is_trivially_destructible<T>;
 #endif
 template <typename T> using underlying_type_t = typename skstd::underlying_type<T>::type;