MATLAB®

mexErrMsgTxt (C and Fortran) - Issue error message and return to MATLAB^® prompt

C Syntax

#include "mex.h"
void mexErrMsgTxt(const char *errormsg);

Fortran Syntax

mexErrMsgTxt(errormsg)
character*(*) errormsg

Arguments

errormsg

String containing the error message to be displayed

Description

Call mexErrMsgTxt to write an error message to the MATLAB window. After the error message prints, MATLAB terminates the MEX-file and returns control to the MATLAB prompt.

Calling mexErrMsgTxt does not clear the MEX-file from memory. Consequently, mexErrMsgTxt does not invoke the function registered through mexAtExit.

If your application called mxCalloc or one of the mxCreate* routines to allocate memory, mexErrMsgTxt automatically frees the allocated memory.

Note   If you get warnings when using mexErrMsgTxt, you may have a memory management compatibility problem. For more information, see Memory Management Issues.

Remarks

In addition to the errormsg, the mexerrmsgtxt function determines where the error occurred, and displays the following information. If an error labeled Print my error message occurs in the function foo, mexerrmsgtxt displays:

??? Error using ==> foo
Print my error message

C Examples

See xtimesy.c in the refbook subdirectory of the examples directory.

For additional examples, see convec.c, findnz.c, fulltosparse.c, phonebook.c, revord.c, and timestwo.c in the refbook subdirectory of the examples directory.

See Also

mexErrMsgIdAndTxt, mexWarnMsgIdAndTxt, mexWarnMsgTxt

mexErrMsgIdAndTxt (C and Fortran)

mexEvalString (C and Fortran)