# source:lemon/test/random_test.cc@132:50ff949140fa

Last change on this file since 132:50ff949140fa was 102:81563e019fa4, checked in by Balazs Dezso <deba@…>, 13 years ago

Seeding random sequence

File size: 1.1 KB
Line
1/* -*- C++ -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library
4 *
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 *
9 * Permission to use, modify and distribute this software is granted
10 * provided that this copyright notice appears in all copies. For
11 * precise terms see the accompanying LICENSE file.
12 *
13 * This software is provided "AS IS" with no warranty of any kind,
14 * express or implied, and with no claim as to its suitability for any
15 * purpose.
16 *
17 */
18
19#include <lemon/random.h>
20#include "test_tools.h"
21
22///\file \brief Test cases for random.h
23///
24///\todo To be extended
25///
26
27int seed_array[] = {1, 2};
28
29int main()
30{
31  double a=lemon::rnd();
32  check(a<1.0&&a>0.0,"This should be in [0,1)");
33  a=lemon::rnd.gauss();
34  a=lemon::rnd.gamma(3.45,0);
35  a=lemon::rnd.gamma(4);
36  //Does gamma work with integer k?
37  a=lemon::rnd.gamma(4.0,0);
38  a=lemon::rnd.poisson(.5);
39
40  lemon::rnd.seed(100);
41  lemon::rnd.seed(seed_array, seed_array +
42                  (sizeof(seed_array) / sizeof(seed_array[0])));
43
44  return 0;
45}
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