Mercurial > octave-nkf
view examples/code/myset.c @ 20619:eef93a493ce3
use new cell_value method to handle value extraction errors
* cellfun.cc, ov-class.cc, ov-struct.cc, ov-usr-fcn.cc:
Use new cell_value method.
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 09 Oct 2015 14:43:36 -0400 |
parents | 5c42ff6f0eb1 |
children |
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#include "mex.h" void mexFunction (int nlhs, mxArray* plhs[], int nrhs, const mxArray* prhs[]) { char *str; mxArray *v; int found = 0; if (nrhs != 2 || ! mxIsChar (prhs[0])) mexErrMsgTxt ("Arguments must be a symbol name and a value"); str = mxArrayToString (prhs[0]); // FIXME: If variable does not exist, error is reported which prevents // subsequent mexGetArray function from working. v = mexGetArray (str, "global"); if (v) { mexPrintf ("%s is a global variable with the following value:\n", str); mexCallMATLAB (0, NULL, 1, &v, "disp"); found = 1; } if (! found) v = mexGetArray (str, "caller"); if (! found && v) { mexPrintf ("%s is a caller variable with the following value:\n", str); mexCallMATLAB (0, NULL, 1, &v, "disp"); } // WARNING!! Can't do this in MATLAB! Must copy variable first. mexPutVariable ("caller", str, prhs[1]); }