Application stops when writing values in Buffer

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VisualC++

Hi all,

Here is my code. My problem with this code is ,it stops or hangs the application when I writing values in pImBuffer.
It stops after pImBuffer[100] reaches as length of pImBuffer is [357120].
And it is passed by reference.

Please Help....

for(i=0;i<Height;i++)
{
    for(j=0;j<Width;j++)
    {
       
    pImBuffer[i * Width + j] = pInputBuffer[i * Width + j];
        
    }
}

Thanks all