Stack overflow C++

Question

This is my code. When I access dtr array in initImg function it gives a stack overflow exception. What might be the reason?

#define W 1000
#define H 1000
#de         


        

Answer 1

In addition to the stack overrun, you have another problem -- one which is masked by your definitions of W and H.

for(int i=0;i

Your i loop should count from 0 to H-1, rather than W-1 (and the j loop should swap as well). Otherwise your code will only work correctly if W==H. If WH you will overrun your buffers.

This same problem exists elsewhere in your code sample as well.