Fix collections capacity growing to use the closest power of two

Capacity was incorrectly 2x larger than needed. Added unit test to ensure it stays correct.
2025-12-04 23:29:15 +01:00
parent a1999183f2
commit 3a798a70fa
2 changed files with 14 additions and 3 deletions
--- a/Source/Engine/Core/Memory/Allocation.h
+++ b/Source/Engine/Core/Memory/Allocation.h
@@ -18,9 +18,7 @@ namespace AllocationUtils
        capacity |= capacity >> 8;
        capacity |= capacity >> 16;
        uint64 capacity64 = (uint64)(capacity + 1) * 2;
-        if (capacity64 > MAX_int32)
-            capacity64 = MAX_int32;
-        return (int32)capacity64;
+        return capacity64 >= MAX_int32 ? MAX_int32 : (int32)capacity64 / 2;
    }

    // Aligns the input value to the next power of 2 to be used as bigger memory allocation block.