vs2022 Debug mode error

[Gihong-Yim]

 SVXPrimitiveDataArchive* pstMeshInArchive = CVxObjPrimitiveIn->GetPrimitiveArchive();
 vxfloat3* pf3VertPos = pstMeshInArchive->GetVerticeDefinition(vxrVertexTypePOSITION);
 vxmatrix matMeshOS2WS = *CVxObjPrimitiveIn->GetMatrixOS2WS();

 Mesh temp = Mesh();
 VertCoords vertCoords = temp.points;
 for (int i = 0; i < pstMeshInArchive->uiNumVertice; i++) 
 {
     vxfloat3 vertPos;
     VXHMTransformPoint(&vertPos, &pf3VertPos[i], &matMeshOS2WS);

     vertCoords.push_back(Vector3f(vertPos.x, vertPos.y, vertPos.z));
 }

 uint* uiIndices = new uint[pstMeshInArchive->uiNumIndice];
 memcpy(uiIndices, pstMeshInArchive->puiIndexList, sizeof(uint)* pstMeshInArchive->uiNumIndice);
 
 Triangulation indexList = temp.topology.getTriangulation();
 for (int i = 0; i < pstMeshInArchive->uiNumPrimitives; i++) 
 {
     indexList.push_back(ThreeVertIds{ VertId(uiIndices[i * 3 + 0]), VertId(uiIndices[i * 3 + 1]), VertId(uiIndices[i * 3 + 2]) });
 }

 temp = Mesh::fromTriangles(vertCoords, indexList);
 pMeshOut = temp;

 return true;

The given code does not produce any errors in Release Mode, but in Debug Mode, an error occurs near the push_back operation. You'd like to understand the reason behind this behavior. Here's the translation of your query into English:

In the following code, there is no error in Release Mode, but an error occurs near the push_back in Debug Mode. I want to know the reason for this.

If you'd like, I can provide additional debugging tips or explanations! Let me know.

[Grantim]

Hello!

Could you please provide more information about error you get, and what exact push_back is rising it?

[Gihong-Yim]

[Gihong-Yim]

An unhandled exception occurred at 0x00007FFA78E87D43 (VxExlibModelProcessing.dll) in PlatformTrust.exe: 0xC0000005: Access violation while writing to location 0x0000000000000000.

[Fedr]

As far as I can see, your program crashes in

 uint* uiIndices = new uint[pstMeshInArchive->uiNumIndice];
...
 for (int i = 0; i < pstMeshInArchive->uiNumPrimitives; i++) 
 {
     indexList.push_back(ThreeVertIds{ VertId(uiIndices[i * 3 + 0]), VertId(uiIndices[i * 3 + 1]), VertId(uiIndices[i * 3 + 2]) });
 }

and here there are no MeshLib calls actually.

Most probably, you read out-of-range in uiIndices[i * 3 + 2]. Please verify that

3 * pstMeshInArchive->uiNumPrimitives <= pstMeshInArchive->uiNumIndice