libstdc++-v3/testsuite/util/regression/rand/priority_queue/rand_regression_test.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the terms
   7 // of the GNU General Public License as published by the Free Software
   8 // Foundation; either version 3, or (at your option) any later
   9 // version.
  10
  11 // This library is distributed in the hope that it will be useful, but
  12 // WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License
  17 // along with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20
  21 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  22
  23 // Permission to use, copy, modify, sell, and distribute this software
  24 // is hereby granted without fee, provided that the above copyright
  25 // notice appears in all copies, and that both that copyright notice
  26 // and this permission notice appear in supporting documentation. None
  27 // of the above authors, nor IBM Haifa Research Laboratories, make any
  28 // representation about the suitability of this software for any
  29 // purpose. It is provided "as is" without express or implied
  30 // warranty.
  31
  32 /**
  33  * @file rand_regression_test.hpp
  34  * Contains a random-operation test.
  35  */
  36
  37 #ifndef PB_DS_PQ_RAND_REGRESSION_TEST_HPP
  38 #define PB_DS_PQ_RAND_REGRESSION_TEST_HPP
  39
  40 #include <iostream>
  41 #include <vector>
  42 #include <io/verified_cmd_line_input.hpp>
  43 #include <regression/common_type.hpp>
  44 #include <regression/rand/priority_queue/container_rand_regression_test.h>
  45
  46 namespace __gnu_pbds
  47 {
  48 namespace test
  49 {
  50 namespace detail
  51 {
  52 #ifndef PB_DS_REGRESSION
  53 #error "Must define PB_DS_REGRESSION"
  54 #endif
  55
  56   struct rand_reg_test
  57   {
  58   public:
  59     rand_reg_test(size_t seed, size_t n, size_t m, double tp, double ip,
  60                   double dp, double ep, double cp, double mp, bool d)
  61     : m_sd(seed), m_n(n), m_m(m), m_tp(tp), m_ip(ip), m_dp(dp), m_ep(ep),
  62       m_cp(cp), m_mp(mp), m_disp(d)
  63     { }
  64
  65     template<typename Cntnr>
  66     void
  67     operator()(Cntnr)
  68     {
  69       unsigned long ul = static_cast<unsigned long>(m_sd);
  70       container_rand_regression_test<Cntnr> t(ul, m_n, m_n, m_tp, m_ip, m_dp,
  71                                               m_ep, m_cp, m_mp, m_disp);
  72       t();
  73     }
  74
  75   private:
  76     const size_t m_sd;
  77     const size_t m_n;
  78     const size_t m_m;
  79     const double m_tp;
  80     const double m_ip;
  81     const double m_dp;
  82     const double m_ep;
  83     const double m_cp;
  84     const double m_mp;
  85     const bool m_disp;
  86   };
  87
  88   void
  89   usage(const std::string& r_name);
  90
  91   void
  92   verify_params(size_t&, size_t&, size_t&,
  93                 double&, double&, double&, double&, double&, double&, bool&);
  94 } // namespace detail
  95
  96   template<typename TL>
  97   int
  98   rand_regression_test(size_t iter, size_t keys, const std::string name, TL tl)
  99   {
 100     // Sane defaults.
 101     size_t n = iter;
 102     size_t m = keys;
 103     size_t sd = 0; // 0 = time-determined arbitrary
 104     double tp = 0.2;
 105     double ip = 0.6;
 106     double dp = 0.1;
 107     double ep = 0.2;
 108     double cp = 0.001;
 109     double mp = 1;
 110     bool disp = false; // show progress
 111
 112     try
 113       {
 114         detail::verify_params(sd, n, m, tp, ip, dp, ep, cp, mp, disp);
 115       }
 116     catch(__gnu_pbds::test::illegal_input_error&)
 117       {
 118         detail::usage(name);
 119         return -1;
 120       }
 121     catch(...)
 122       {
 123         return -2;
 124       };
 125
 126     xml_test_rand_regression_formatter* p_fmt = NULL;
 127     if (sd == 0)
 128       sd = twister_rand_gen::get_time_determined_seed();
 129     if (disp)
 130       p_fmt = new xml_test_rand_regression_formatter(sd, n, m, tp, ip, dp,
 131                                                      ep, cp, mp);
 132
 133     try
 134       {
 135         detail::rand_reg_test tst(sd, n, m, tp, ip, dp, ep, cp, mp, disp);
 136         __gnu_cxx::typelist::apply(tst, tl);
 137       }
 138     catch(...)
 139       {
 140         std::cerr << "Test failed with seed " << sd << std::endl;
 141         if (disp)
 142           delete p_fmt;
 143         return -1;
 144       }
 145
 146     if (disp)
 147       delete p_fmt;
 148     return 0;
 149   }
 150
 151 namespace detail
 152 {
 153   inline void
 154   usage(const std::string& name)
 155   {
 156     using namespace std;
 157     cerr << "usage: " << name << " <sd> <n> <m> <tp> <ip> <dp> <ep> <cp> <mp> ['t' | 'f']" <<
 158       endl << endl;
 159
 160     cerr << "This test performs basic regression tests on various priority queues."
 161       "For each container, it performs a sequence of operations. At each iteration, it does "
 162       "the following: " << endl;
 163     cerr << "*  Performs an operation on the container " << endl;
 164     cerr << "*  Performs the same operation on an cntnr object" << endl;
 165     cerr << "*  Possibly compares the container to the cntnr object" << endl;
 166     cerr << "*  Checks that exceptions (thrown by an allocator) "
 167       "do not violate exception guarantees";
 168
 169     cerr << endl << endl;
 170
 171     cerr << "sd = seed for random-number generator; 0 = "
 172       "time determined value" << endl;
 173     cerr << "n = number of iterations" << endl;
 174     cerr << "m = number of distinct values" << endl;
 175     cerr << "tp = probability that an exception will be actively thrown" << endl;
 176     cerr << "ip = probability that an operation will be insert" << endl;
 177     cerr << "dp = probability that an operation will be modify" << endl;
 178     cerr << "ep = probability that an operation will be erase" << endl;
 179     cerr << "cp = probability that an operation will be clear" << endl;
 180     cerr << "(therefore, 1 - (ip + dp + ep + cp) = probability of any other operation)" << endl;
 181     cerr << "mp = probability that the container will be compared to the cntnr object" << endl;
 182     cerr << "'t' or 'f' determine whether progress will be displayed" << endl;
 183   }
 184
 185   inline void
 186   verify_params(size_t& r_seed, size_t& r_n,
 187                 size_t& r_m, double& r_tp, double& r_ip, double& r_dp,
 188                 double& r_ep, double& r_cp, double& r_mp, bool& r_d)
 189   {
 190     verify_prob(r_tp);
 191     verify_prob(r_ip);
 192     verify_prob(r_dp);
 193     verify_prob(r_ep);
 194     verify_prob(r_cp);
 195     verify_prob(r_mp);
 196     verify_prob(r_ip + r_dp + r_ep + r_cp);
 197   }
 198 } // namespace detail
 199 } // namespace test
 200 } // namespace __gnu_pbds
 201
 202 #endif