memory allocation problem

[marc2050]

Hi.

I do a memory allocation using 'new', as follow.

double *myarray[50];
 for (int j = 0; j < 50; j++)
  myarray[j] = new double[100000];

double *myarray[50];
 for (int j = 0; j < 50; j++)
  myarray[j] = new double[100000];

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When the codes first run it works. When I rerun it, (e.g. when user click the button again) the program crash. I tried to debug but couldnt find an answer. What is the right way to "trap" such memory allocation codes in QT? And is there a better way to allocate an array of pointers to double in QT?

I also delete the allocation as needed by the following codes

for (int j = 0; j < 50; j++)
  delete [] myarray[j]

for (int j = 0; j < 50; j++)
  delete [] myarray[j]

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Thanks!