old-autovect-branch/libstdc++-v3/testsuite/performance/21_strings/string_find.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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  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 #include <string>
  29 #include <testsuite_performance.h>
  30
  31 void
  32 test_pair(const std::string& s, const std::string& f, int n)
  33 {
  34   std::string::size_type sz = 0;
  35
  36   for (int i = 0; i < n; ++i)
  37     sz = s.find(f);
  38 }
  39
  40 int main()
  41 {
  42   using namespace std;
  43   using namespace __gnu_test;
  44
  45   time_counter time;
  46   resource_counter resource;
  47
  48   const unsigned int iterations = 2000000;
  49
  50   string s, f;
  51   s = "aabbaabbaaxd adbffdadgaxaabbbddhatyaaaabbbaabbaabbcsy";
  52   f = "aabbaabbc";
  53   start_counters(time, resource);
  54   test_pair(s, f, iterations);
  55   stop_counters(time, resource);
  56   report_performance(__FILE__, "1", time, resource);
  57   clear_counters(time, resource);
  58
  59   f = "aabbb";
  60   start_counters(time, resource);
  61   test_pair(s, f, iterations);
  62   stop_counters(time, resource);
  63   report_performance(__FILE__, "2", time, resource);
  64   clear_counters(time, resource);
  65
  66   f = "xd";
  67   start_counters(time, resource);
  68   test_pair(s, f, iterations);
  69   stop_counters(time, resource);
  70   report_performance(__FILE__, "3", time, resource);
  71   clear_counters(time, resource);
  72
  73   s = "dhruv is a very very good boy ;-)";
  74   f = "very";
  75   start_counters(time, resource);
  76   test_pair(s, f, iterations);
  77   stop_counters(time, resource);
  78   report_performance(__FILE__, "4", time, resource);
  79   clear_counters(time, resource);
  80
  81   f = "bad";
  82   start_counters(time, resource);
  83   test_pair(s, f, iterations);
  84   stop_counters(time, resource);
  85   report_performance(__FILE__, "5", time, resource);
  86   clear_counters(time, resource);
  87
  88   f = "extra irritating";
  89   start_counters(time, resource);
  90   test_pair(s, f, iterations);
  91   stop_counters(time, resource);
  92   report_performance(__FILE__, "6", time, resource);
  93   clear_counters(time, resource);
  94
  95   s = "this is a very this is a very this is a verty this is a very "
  96       "this is a very long sentence";
  97   f = "this is a very long sentence";
  98   start_counters(time, resource);
  99   test_pair(s, f, iterations);
 100   stop_counters(time, resource);
 101   report_performance(__FILE__, "7", time, resource);
 102   clear_counters(time, resource);
 103
 104   return 0;
 105 }