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mxCreateCharArray (C and Fortran)

N-D mxChar array

C Syntax

#include "matrix.h"
mxArray *mxCreateCharArray(mwSize ndim, const mwSize *dims);

Fortran Syntax

mwPointer mxCreateCharArray(ndim, dims)
mwSize ndim
mwSize dims(ndim)



Number of dimensions in the mxArray, specified as a positive number. If you specify 0, 1, or 2, mxCreateCharArray creates a two-dimensional mxArray.


Dimensions array. Each element in the dimensions array contains the size of the array in that dimension. For example, in C, setting dims[0] to 5 and dims[1] to 7 establishes a 5-by-7 mxArray. In Fortran, setting dims(1) to 5 and dims(2) to 7 establishes a 5-by-7 character mxArray. The dims array must have at least ndim elements.


Pointer to the created mxArray, if successful. If unsuccessful in a standalone (non-MEX file) application, returns NULL in C (0 in Fortran). If unsuccessful in a MEX file, the MEX file terminates and returns control to the MATLAB® prompt. The function is unsuccessful when there is not enough free heap space to create the mxArray.


Call mxCreateCharArray to create an N-dimensional mxChar array. The created mxArray is unpopulated; that is, mxCreateCharArray initializes each cell to NULL in C (0 in Fortran).

MATLAB automatically removes any trailing singleton dimensions specified in the dims argument. For example, if ndim equals 5 and dims equals [4 1 7 1 1], the resulting array has the dimensions 4-by-1-by-7.

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