Mercurial > octave-nkf
view examples/mypow2.c @ 15827:1f1fc4798f0a stable
doc: Produce .texi from .txi files using Perl rather than C++.
* munge-texi.pl: New Perl file to generate .texi files from .txi files.
* munge-texi.cc: Remove C++ file for generating .texi files.
* Makefile.am: Change build system to use munge-texi.pl
author | Rik <octave@nomad.inbox5.com> |
---|---|
date | Tue, 08 May 2012 21:03:42 -0700 |
parents | 6cb30a539481 |
children | be41c30bcb44 |
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#include "mex.h" void mexFunction (int nlhs, mxArray* plhs[], int nrhs, const mxArray* prhs[]) { mwIndex i; mwSize n; double *vri, *vro; if (nrhs != 1 || ! mxIsNumeric (prhs[0])) mexErrMsgTxt ("expects matrix"); n = mxGetNumberOfElements (prhs[0]); plhs[0] = (mxArray *) 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]; } }