Mercurial > octave
view examples/code/mypow2.c @ 30239:120e878f343f
mkdir.m: issue a warning if DIR already exists (bug #61338)
* mkdir.m: When nargout==0, check status message and report a warning if
"directory exists" message found.
author | Rik <rik@octave.org> |
---|---|
date | Wed, 13 Oct 2021 08:05:14 -0700 |
parents | c763214a8260 |
children |
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#include "mex.h" void mexFunction (int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) { mwSize n; mwIndex i; double *vri, *vro; if (nrhs != 1 || ! mxIsDouble (prhs[0])) mexErrMsgTxt ("ARG1 must be a double matrix"); n = mxGetNumberOfElements (prhs[0]); plhs[0] = mxCreateNumericArray (mxGetNumberOfDimensions (prhs[0]), mxGetDimensions (prhs[0]), mxGetClassID (prhs[0]), mxIsComplex (prhs[0])); vri = mxGetPr (prhs[0]); vro = mxGetPr (plhs[0]); if (mxIsComplex (prhs[0])) { double *vii, *vio; vii = mxGetPi (prhs[0]); vio = mxGetPi (plhs[0]); for (i = 0; i < n; i++) { vro[i] = vri[i] * vri[i] - vii[i] * vii[i]; vio[i] = 2 * vri[i] * vii[i]; } } else { for (i = 0; i < n; i++) vro[i] = vri[i] * vri[i]; } }