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mxIsInt64 (C and Fortran)

Determine whether array represents data as signed 64-bit integers

C Syntax

#include "matrix.h"
bool mxIsInt64(const mxArray *pm);

Fortran Syntax

integer*4 mxIsInt64(pm)
mwPointer pm



Pointer to an mxArray


Logical 1 (true) if the array stores its data as signed 64-bit integers, and logical 0 (false) otherwise.


Use mxIsInt64 to determine whether the specified array represents its real and imaginary data as 64-bit signed integers.

In C, calling mxIsInt64 is equivalent to calling:

mxGetClassID(pm) == mxINT64_CLASS

In Fortran, calling mxIsInt64 is equivalent to calling:

mxGetClassName(pm) == 'int64'

Introduced before R2006a

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