Mercurial > octave-nkf
view examples/code/mystruct.c @ 20603:f61c67865d9f
Don't return A for inv (A) when A is a singular Diagonal matrix (bug #46103).
* dDiagMatrix.cc (inverse), fDiagMatrix.cc (inverse): return octave_Inf for the
inverse of a diagonal element whose value is 0.
* test/diag-perm.tst: Add tests for new behavior.
author | Rik <rik@octave.org> |
---|---|
date | Wed, 07 Oct 2015 07:41:44 -0700 |
parents | 5c42ff6f0eb1 |
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 ("ARG1 must be a 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; }