ceph/src/boost/libs/random/test/test_old_uniform_int_distribution.cpp

   1 /* test_old_uniform_int_distribution.cpp
   2  *
   3  * Copyright Steven Watanabe 2011
   4  * Distributed under the Boost Software License, Version 1.0. (See
   5  * accompanying file LICENSE_1_0.txt or copy at
   6  * http://www.boost.org/LICENSE_1_0.txt)
   7  *
   8  * $Id$
   9  *
  10  */
  11
  12 #include <boost/random/uniform_int.hpp>
  13 #include <limits>
  14
  15 #define BOOST_RANDOM_DISTRIBUTION boost::uniform_int<>
  16 #define BOOST_RANDOM_ARG1 a
  17 #define BOOST_RANDOM_ARG2 b
  18 #define BOOST_RANDOM_ARG1_DEFAULT 0
  19 #define BOOST_RANDOM_ARG2_DEFAULT 9
  20 #define BOOST_RANDOM_ARG1_VALUE 5
  21 #define BOOST_RANDOM_ARG2_VALUE 250
  22
  23 #define BOOST_RANDOM_DIST0_MIN 0
  24 #define BOOST_RANDOM_DIST0_MAX 9
  25 #define BOOST_RANDOM_DIST1_MIN 5
  26 #define BOOST_RANDOM_DIST1_MAX 9
  27 #define BOOST_RANDOM_DIST2_MIN 5
  28 #define BOOST_RANDOM_DIST2_MAX 250
  29
  30 #define BOOST_RANDOM_TEST1_PARAMS (0, 9)
  31 #define BOOST_RANDOM_TEST1_MIN 0
  32 #define BOOST_RANDOM_TEST1_MAX 9
  33
  34 #define BOOST_RANDOM_TEST2_PARAMS (10, 19)
  35 #define BOOST_RANDOM_TEST2_MIN 10
  36 #define BOOST_RANDOM_TEST2_MAX 19
  37
  38 #include "test_distribution.ipp"
  39
  40 #define BOOST_RANDOM_UNIFORM_INT boost::uniform_int
  41
  42 #include "test_uniform_int.ipp"
  43
  44 #include <algorithm>
  45 #include <boost/random/random_number_generator.hpp>
  46
  47 // Test that uniform_int<> can be used with std::random_shuffle
  48 // Author: Jos Hickson
  49 BOOST_AUTO_TEST_CASE(test_random_shuffle)
  50 {
  51     typedef boost::uniform_int<> distribution_type;
  52     typedef boost::variate_generator<boost::mt19937 &, distribution_type> generator_type;
  53
  54     boost::mt19937 engine1(1234);
  55     boost::mt19937 engine2(1234);
  56
  57     boost::random::random_number_generator<boost::mt19937> referenceRand(engine1);
  58
  59     distribution_type dist(0,10);
  60     generator_type testRand(engine2, dist);
  61
  62     std::vector<int> referenceVec;
  63
  64     for (int i = 0; i < 200; ++i) {
  65         referenceVec.push_back(i);
  66     }
  67
  68     std::vector<int> testVec(referenceVec);
  69
  70     std::random_shuffle(referenceVec.begin(), referenceVec.end(), referenceRand);
  71     std::random_shuffle(testVec.begin(), testVec.end(), testRand);
  72
  73     BOOST_CHECK_EQUAL_COLLECTIONS(
  74         testVec.begin(), testVec.end(),
  75         referenceVec.begin(), referenceVec.end());
  76 }