libstdc++-v3/testsuite/performance/20_util/allocator/list_sort_search.cc

   1 // Copyright (C) 2004 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 2, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING.  If not, write to the Free
  16 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  17 // USA.
  18
  19 // As a special exception, you may use this file as part of a free software
  20 // library without restriction.  Specifically, if other files instantiate
  21 // templates or use macros or inline functions from this file, or you compile
  22 // this file and link it with other files to produce an executable, this
  23 // file does not by itself cause the resulting executable to be covered by
  24 // the GNU General Public License.  This exception does not however
  25 // invalidate any other reasons why the executable file might be covered by
  26 // the GNU General Public License.
  27
  28 // 2004-03-11  Dhruv Matani  <dhruvbird@HotPOP.com>
  29
  30 #include <list>
  31 #include <algorithm>
  32 #include <cstdlib>
  33 #include <typeinfo>
  34 #include <sstream>
  35 #include <ext/mt_allocator.h>
  36 #include <ext/new_allocator.h>
  37 #include <ext/malloc_allocator.h>
  38 #include <ext/bitmap_allocator.h>
  39 #include <ext/pool_allocator.h>
  40 #include <cxxabi.h>
  41 #include <testsuite_performance.h>
  42
  43 using namespace std;
  44 using __gnu_cxx::malloc_allocator;
  45 using __gnu_cxx::new_allocator;
  46 using __gnu_cxx::__mt_alloc;
  47 using __gnu_cxx::bitmap_allocator;
  48 using __gnu_cxx::__pool_alloc;
  49
  50 typedef int test_type;
  51
  52 template <typename Alloc>
  53   int
  54   Test_Allocator()
  55   {
  56     typedef list<int, Alloc> My_List;
  57     My_List il1;
  58     int const Iter = 150000;
  59
  60     int ctr = 3;
  61     while (ctr--)
  62       {
  63         for (int i = 0; i < Iter; ++i)
  64           il1.push_back(rand()%500001);
  65
  66         //Search for random values that may or may not belong to the list.
  67         for (int i = 0; i < 50; ++i)
  68           std::find(il1.begin(), il1.end(), rand() % 100001);
  69
  70         il1.sort();
  71
  72         //Search for random values that may or may not belong to the list.
  73         for (int i = 0; i < 50; ++i)
  74           {
  75             typename My_List::iterator _liter = std::find(il1.begin(),
  76                                                           il1.end(),
  77                                                           rand() % 100001);
  78             if (_liter != il1.end())
  79               il1.erase(_liter);
  80           }
  81
  82         il1.clear();
  83       }
  84     return Iter;
  85   }
  86
  87 template <typename Alloc>
  88   void
  89   do_test()
  90   {
  91     using namespace __gnu_test;
  92     int status;
  93     Alloc obj;
  94
  95     time_counter time;
  96     resource_counter resource;
  97     clear_counters(time, resource);
  98     start_counters(time, resource);
  99     int test_iterations = Test_Allocator<Alloc>();
 100     stop_counters(time, resource);
 101
 102     std::ostringstream comment;
 103     comment << "iterations: " << test_iterations << '\t';
 104     comment << "type: " << abi::__cxa_demangle(typeid(obj).name(),
 105                                                0, 0, &status);
 106     report_header(__FILE__, comment.str());
 107     report_performance(__FILE__, string(), time, resource);
 108   }
 109
 110 int main()
 111 {
 112 #ifdef TEST_S0
 113   do_test<new_allocator<int> >();
 114 #endif
 115 #ifdef TEST_S1
 116   do_test<malloc_allocator<int> >();
 117 #endif
 118 #ifdef TEST_S2
 119   do_test<__mt_alloc<int> >();
 120 #endif
 121 #ifdef TEST_S3
 122   do_test<bitmap_allocator<int> >();
 123 #endif
 124 #ifdef TEST_S4
 125   do_test<__pool_alloc<int> >();
 126 #endif
 127 }