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mxIsUint8 (C and Fortran)

Determine whether array represents data as unsigned 8-bit integers

C Syntax

#include "matrix.h"
bool mxIsUint8(const mxArray *pm);

Fortran Syntax

#include "fintrf.h"
integer*4 mxIsUint8(pm)
mwPointer pm



Pointer to an mxArray


Logical 1 (true) if the mxArray stores its data as unsigned 8-bit integers, and logical 0 (false) otherwise.


Use mxIsUint8 to determine whether the specified mxArray represents its real and imaginary data as 8-bit unsigned integers.

In C, calling mxIsUint8 is equivalent to calling:

mxGetClassID(pm) == mxUINT8_CLASS

In Fortran, calling mxIsUint8 is equivalent to calling:

mxGetClassName(pm) .eq. 'uint8'

Introduced before R2006a

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