test/random_test.cc
author Balazs Dezso <deba@inf.elte.hu>
Thu, 24 Jun 2010 09:27:53 +0200
changeset 982 bb70ad62c95f
parent 209 765619b7cbb2
child 1379 db1d342a1087
permissions -rw-r--r--
Fix critical bug in preflow (#372)

The wrong transition between the bound decrease and highest active
heuristics caused the bug. The last node chosen in bound decrease mode
is used in the first iteration in highest active mode.
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/* -*- mode: C++; indent-tabs-mode: nil; -*-
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 *
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 * This file is a part of LEMON, a generic C++ optimization library.
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 *
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 * Copyright (C) 2003-2009
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 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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 * (Egervary Research Group on Combinatorial Optimization, EGRES).
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 *
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 * Permission to use, modify and distribute this software is granted
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 * provided that this copyright notice appears in all copies. For
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 * precise terms see the accompanying LICENSE file.
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 *
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 * This software is provided "AS IS" with no warranty of any kind,
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 * express or implied, and with no claim as to its suitability for any
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 * purpose.
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 *
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 */
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#include <lemon/random.h>
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#include "test_tools.h"
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int seed_array[] = {1, 2};
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int main()
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{
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  double a=lemon::rnd();
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  check(a<1.0&&a>0.0,"This should be in [0,1)");
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  a=lemon::rnd.gauss();
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  a=lemon::rnd.gamma(3.45,0);
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  a=lemon::rnd.gamma(4);
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  //Does gamma work with integer k?
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  a=lemon::rnd.gamma(4.0,0);
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  a=lemon::rnd.poisson(.5);
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  lemon::rnd.seed(100);
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  lemon::rnd.seed(seed_array, seed_array +
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                  (sizeof(seed_array) / sizeof(seed_array[0])));
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  return 0;
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}