[Matlab][Debug]mxDestroyArray

Source

Matlab Help: Memory Management Compatibility Issues

Syndrome

The matlab engine properly opens and closes at the first time. But at the second attempt of starting matlab engine the error message pops up:

Forced Assertion: "Corrupted memory block found"

Cause

• mxDestroyArray was called on a mxArray whose data was not assigned by matlab API

  mxArray *temp = mxCreateDoubleMatrix(1,5,mxREAL);
  double data[5] = {1,2,3,4,5};
  ...
  memcpy(mxGetPr(temp), data, 5*sizeof(double));
  ...
  mxDestroyArray(temp); // <-- INCORRECT. Do NOT call mxDestroyArray on temp

Solution

• Do NOT call mxDestroyArray on such mxArray's