Commit: fa50edc999c1ef2aa76e5c3a74fd5d8789fcb8bf
Author: Jacques Lucke
Date: Thu Apr 1 12:25:30 2021 +0200
Branches: master
https://developer.blender.org/rBfa50edc999c1ef2aa76e5c3a74fd5d8789fcb8bf
BLI: return early when copying empty array
===================================================================
M source/blender/blenlib/BLI_linear_allocator.hh
===================================================================
diff --git a/source/blender/blenlib/BLI_linear_allocator.hh
b/source/blender/blenlib/BLI_linear_allocator.hh
index 47705b1d40b..6aa97d5c5e7 100644
--- a/source/blender/blenlib/BLI_linear_allocator.hh
+++ b/source/blender/blenlib/BLI_linear_allocator.hh
@@ -133,6 +133,9 @@ template<typename Allocator = GuardedAllocator> class
LinearAllocator : NonCopya
*/
template<typename T> MutableSpan<T> construct_array_copy(Span<T> src)
{
+ if (src.is_empty()) {
+ return {};
+ }
MutableSpan<T> dst = this->allocate_array<T>(src.size());
uninitialized_copy_n(src.data(), src.size(), dst.data());
return dst;
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