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annotate examples/standalonebuiltin.cc @ 18479:85d31344fb23 stable rc-3-8-1-2

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3.8.1 release candidate 2 * configure.ac (OCTAVE_VERSION): Bump to 3.8.1-rc2. (OCTAVE_MINOR_VERSION): Bump to 1-rc2. (OCTAVE_RELEASE_DATE): Set to 2014-02-14.
author John W. Eaton <jwe@octave.org>
date Mon, 17 Feb 2014 02:20:39 -0500
parents adb7c7e6a4a1
children 446c46af4b42
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3341d2f1e5db Document calling DEFUN functions in C++.
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1 #include <iostream>
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2 #include <octave/oct.h>
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3 #include <octave/builtin-defun-decls.h>
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4
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5 int
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6 main (void)
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7 {
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8 int n = 2;
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9 Matrix a_matrix = Matrix (n, n);
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10
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11 for (octave_idx_type i = 0; i < n; i++)
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12 for (octave_idx_type j = 0; j < n; j++)
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13 a_matrix(i,j) = (i + 1) * 10 + (j + 1);
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14
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15 std::cout << "This is a matrix:" << std::endl
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16 << a_matrix << std::endl;
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17
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18 octave_value_list in;
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19 in(0) = a_matrix;
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20
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21 octave_value_list out = Fnorm (in, 1);
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22 double norm_of_the_matrix = out(0).double_value ();
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23
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24 std::cout << "This is the norm of the matrix:" << std::endl
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25 << norm_of_the_matrix << std::endl;
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26
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27 return 0;
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28 }