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BLI: return early when copying empty array

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This commit is contained in:
Jacques Lucke 2021-04-01 12:25:30 +02:00
parent 0ffbcc4416
commit fa50edc999
1 changed files with 3 additions and 0 deletions
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3
source/blender/blenlib/BLI_linear_allocator.hh
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@ -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;