Mercurial > hg > octave-nkf
comparison examples/mypow2.c @ 16867:be41c30bcb44
Re-write documentation and all examples of dynamically linked functions.
* doc/interpreter/dynamic.txi: deleted.
* doc/interpreter/external.txi: Renamed from dynamic.txi. Rewrote or added
much information about dynamically linked functions.
* doc/interpreter/Makefile.am: Changed dynamic.txi to external.txi
in build system.
* doc/interpreter/data.txi, doc/interpreter/intro.txi,
doc/interpreter/octave.texi, doc/interpreter/sparse.txi: Changed dynamic.txi to
external.txi in cross-references.
* doc/interpreter/doccheck/aspell-octave.en.pws: Added new words from
external.txi to Octave dictionary.
* examples/firstmexdemo.c: deleted.
* examples/mex_demo.c: Renamed from firstmexdemo.c. Added many more comments
to code.
* examples/hello.cc: deleted.
* examples/oct_demo.cc: Renamed from hello.cc. Added many more comments
to code.
* examples/Makefile.am: Changed build system to use mex_demo.c and oct_demo.cc.
* examples/addtwomatrices.cc, examples/celldemo.cc, examples/embedded.cc,
examples/fortdemo.cc, examples/funcdemo.cc, examples/globaldemo.cc,
examples/helloworld.cc, examples/mycell.c, examples/myfeval.c,
examples/myfunc.c, examples/myhello.c, examples/mypow2.c, examples/myprop.c,
examples/myset.c, examples/mysparse.c, examples/mystring.c,
examples/mystruct.c, examples/paramdemo.cc, examples/standalone.cc,
examples/stringdemo.cc, examples/structdemo.cc, examples/unwinddemo.cc:
Use Octave coding conventions for code. Fixed all compilation errors and
warnings.
author | Rik <rik@octave.org> |
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date | Sat, 29 Jun 2013 18:08:24 -0700 |
parents | 6cb30a539481 |
children | 224e76250443 |
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16866:a472bfc67b6c | 16867:be41c30bcb44 |
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1 #include "mex.h" | 1 #include "mex.h" |
2 | 2 |
3 void | 3 void |
4 mexFunction (int nlhs, mxArray* plhs[], int nrhs, | 4 mexFunction (int nlhs, mxArray* plhs[], |
5 const mxArray* prhs[]) | 5 int nrhs, const mxArray* prhs[]) |
6 { | 6 { |
7 mwSize n; | |
7 mwIndex i; | 8 mwIndex i; |
8 mwSize n; | |
9 double *vri, *vro; | 9 double *vri, *vro; |
10 | 10 |
11 if (nrhs != 1 || ! mxIsNumeric (prhs[0])) | 11 if (nrhs != 1 || ! mxIsNumeric (prhs[0])) |
12 mexErrMsgTxt ("expects matrix"); | 12 mexErrMsgTxt ("ARG1 must be a matrix"); |
13 | 13 |
14 n = mxGetNumberOfElements (prhs[0]); | 14 n = mxGetNumberOfElements (prhs[0]); |
15 plhs[0] = (mxArray *) mxCreateNumericArray | 15 plhs[0] = mxCreateNumericArray |
16 (mxGetNumberOfDimensions (prhs[0]), | 16 (mxGetNumberOfDimensions (prhs[0]), mxGetDimensions (prhs[0]), |
17 mxGetDimensions (prhs[0]), mxGetClassID (prhs[0]), | 17 mxGetClassID (prhs[0]), mxIsComplex (prhs[0])); |
18 mxIsComplex (prhs[0])); | |
19 vri = mxGetPr (prhs[0]); | 18 vri = mxGetPr (prhs[0]); |
20 vro = mxGetPr (plhs[0]); | 19 vro = mxGetPr (plhs[0]); |
21 | 20 |
22 if (mxIsComplex (prhs[0])) | 21 if (mxIsComplex (prhs[0])) |
23 { | 22 { |
25 vii = mxGetPi (prhs[0]); | 24 vii = mxGetPi (prhs[0]); |
26 vio = mxGetPi (plhs[0]); | 25 vio = mxGetPi (plhs[0]); |
27 | 26 |
28 for (i = 0; i < n; i++) | 27 for (i = 0; i < n; i++) |
29 { | 28 { |
30 vro [i] = vri [i] * vri [i] - vii [i] * vii [i]; | 29 vro[i] = vri[i] * vri[i] - vii[i] * vii[i]; |
31 vio [i] = 2 * vri [i] * vii [i]; | 30 vio[i] = 2 * vri[i] * vii[i]; |
32 } | 31 } |
33 } | 32 } |
34 else | 33 else |
35 { | 34 { |
36 for (i = 0; i < n; i++) | 35 for (i = 0; i < n; i++) |
37 vro [i] = vri [i] * vri [i]; | 36 vro[i] = vri[i] * vri[i]; |
38 } | 37 } |
39 } | 38 } |