I wrote a MEX routine that calls a C function which uses "int" rather than double.
The way I fetch the array from MatLab is through a command like:
nc = (int *) mxGetPr(prhs);
However, this works only if, when calling the function from MatLab, I do:
Otherwise, it crashes, as it calculates an index incorrectly, which I then use to access some elements of an array.
I tried passing the array as a double, and then casting it to a new array within the mex file. Like this:
nc_double = (double *) mxGetPr(prhs);
for (int i=0; i<size_nc; n++)
nc[i] = (int) nc_double[i];
It compiled, but have me an error: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0) using the debugger.
I wonder if there is a more robust way of doing this? Someone on the Matlab side might forget to convert the culprits to int32 and crash the program.