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mxIsLogical (C and Fortran)

Determine whether array is of type mxLogical

C Syntax

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

Fortran Syntax

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

Arguments

pm: Pointer to an mxArray

Returns

Logical 1 (true) if pm points to a logical mxArray. Otherwise, it returns logical 0 (false).

Description

Use mxIsLogical to determine whether MATLAB^® software treats the data in the mxArray as Boolean (logical). If an mxArray is logical, then MATLAB treats all zeros as meaning false and all nonzero values as meaning true.