Scalar, logical array
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 mxCreateLogicalScalar to create a scalar logical mxArray. mxCreateLogicalScalar is a convenience function that replaces the following code:
pa = mxCreateLogicalMatrix(1, 1); *mxGetLogicals(pa) = value;
When you finish using the mxArray, call mxDestroyArray to destroy it.