Mercurial > octave-nkf
view examples/code/myset.c @ 20607:db3286201347 stable
doc: Add explanation of ':' optional input to numel().
* data.cc (Fnumel): Add explanation of ':' optional input.
author | Rik <rik@octave.org> |
---|---|
date | Wed, 07 Oct 2015 14:52:01 -0700 |
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]); }