MATLAB Application Program Interface Reference

True if mxArray represents its data as signed 32-bit integers

#include "matrix.h"
bool mxIsInt32(const mxArray *array_ptr);

array_ptr

Pointer to an mxArray.

true if the array stores its data as signed 32-bit integers; otherwise, returns false.

Use mxIsInt32 to determine whether or not the specified array represents its real and imaginary data as 32-bit signed integers.

Calling mxIsInt32 is equivalent to calling

mxGetClassID(array_ptr) == mxINT32_CLASS