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Disallow the operator= for btAlignedObjectArray, together with some fixes in the code (to avoid accidental deep copy)

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Enable #define BT_ALLOW_ARRAY_COPY_OPERATOR in Bullet/LinearMath/btAlignedObjectArray.h to re-enable it
Fixes Issue 564, thanks to Tissen Peter for the report/fix
This commit is contained in:
erwin.coumans
2011-11-15 20:09:05 +00:00
parent d3c6f9dd67
commit 4e0aa42123
3 changed files with 17 additions and 4 deletions
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2
Extras/ConvexDecomposition/ConvexBuilder.cpp
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@@ -251,7 +251,7 @@ bool ConvexBuilder::combineHulls(void)
if ( combine )
{
mChulls.clear();
mChulls = output;
mChulls.copyFromArray(output);
output.clear();
}

4
src/BulletCollision/CollisionShapes/btOptimizedBvh.cpp
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@@ -43,7 +43,7 @@ void btOptimizedBvh::build(btStridingMeshInterface* triangles, bool useQuantized
NodeTriangleCallback& operator=(NodeTriangleCallback& other)
{
m_triangleNodes = other.m_triangleNodes;
m_triangleNodes.copyFromArray(other.m_triangleNodes);
return *this;
}
@@ -84,7 +84,7 @@ void btOptimizedBvh::build(btStridingMeshInterface* triangles, bool useQuantized
QuantizedNodeTriangleCallback& operator=(QuantizedNodeTriangleCallback& other)
{
m_triangleNodes = other.m_triangleNodes;
m_triangleNodes.copyFromArray(other.m_triangleNodes);
m_optimizedTree = other.m_optimizedTree;
return *this;
}

13
src/LinearMath/btAlignedObjectArray.h
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@@ -28,6 +28,7 @@ subject to the following restrictions:
#define BT_USE_PLACEMENT_NEW 1
//#define BT_USE_MEMCPY 1 //disable, because it is cumbersome to find out for each platform where memcpy is defined. It can be in <memory.h> or <string.h> or otherwise...
//#define BT_ALLOW_ARRAY_COPY_OPERATOR // enabling this can accidently perform deep copies of data if you are not careful
#ifdef BT_USE_MEMCPY
#include <memory.h>
@@ -53,6 +54,18 @@ class btAlignedObjectArray
//PCK: added this line
bool m_ownsMemory;
#ifdef BT_ALLOW_ARRAY_COPY_OPERATOR
public:
SIMD_FORCE_INLINE btAlignedObjectArray<T>& operator=(btAlignedObjectArray<T> &other)
{
copyFromArray(other);
return *this;
}
#else//BT_ALLOW_ARRAY_COPY_OPERATOR
private:
SIMD_FORCE_INLINE btAlignedObjectArray<T>& operator=(btAlignedObjectArray<T> &other);
#endif//BT_ALLOW_ARRAY_COPY_OPERATOR
protected:
SIMD_FORCE_INLINE int allocSize(int size)
{