Mercurial > octave-nkf
view examples/mystruct.c @ 18575:f57148641869 gui-release
polyeig.m: Overhaul function for Matlab compatibility (bug #41865).
* NEWS: Announce change in return format of polyeig.
* polyeig.m: Return a row vector of eigenvalues rather than a matrix with
eigenvalues on the diagonal. Improve docstring. Improve input validation.
Add %!error tests for input validation.
author | Rik <rik@octave.org> |
---|---|
date | Sat, 15 Mar 2014 16:29:46 -0700 |
parents | 224e76250443 |
children |
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#include "mex.h" void mexFunction (int nlhs, mxArray* plhs[], int nrhs, const mxArray* prhs[]) { int i; mwIndex j; mxArray *v; const char *keys[] = { "this", "that" }; if (nrhs != 1 || ! mxIsStruct (prhs[0])) mexErrMsgTxt ("expects struct"); for (i = 0; i < mxGetNumberOfFields (prhs[0]); i++) for (j = 0; j < mxGetNumberOfElements (prhs[0]); j++) { mexPrintf ("field %s(%d) = ", mxGetFieldNameByNumber (prhs[0], i), j); v = mxGetFieldByNumber (prhs[0], j, i); mexCallMATLAB (0, NULL, 1, &v, "disp"); } v = mxCreateStructMatrix (2, 2, 2, keys); mxSetFieldByNumber (v, 0, 0, mxCreateString ("this1")); mxSetFieldByNumber (v, 0, 1, mxCreateString ("that1")); mxSetFieldByNumber (v, 1, 0, mxCreateString ("this2")); mxSetFieldByNumber (v, 1, 1, mxCreateString ("that2")); mxSetFieldByNumber (v, 2, 0, mxCreateString ("this3")); mxSetFieldByNumber (v, 2, 1, mxCreateString ("that3")); mxSetFieldByNumber (v, 3, 0, mxCreateString ("this4")); mxSetFieldByNumber (v, 3, 1, mxCreateString ("that4")); if (nlhs) plhs[0] = v; }