libstdc++-v3/testsuite/performance/28_regex/split.h

   1 // Copyright (C) 2013-2023 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 3, 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 COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // 2013-10-26  Tim Shen  <timshen91@gmail.com>
  19
  20 #include <regex>
  21
  22 using namespace std;
  23
  24 void split(string s)
  25 {
  26     regex re("\\s+");
  27     for (auto it = sregex_token_iterator(s.begin(), s.end(), re, -1);
  28          it != sregex_token_iterator();
  29          ++it)
  30       {
  31       }
  32 }
  33
  34 string source = "\
  35 // Copyright (C) 2013-2023 Free Software Foundation, Inc.\n\
  36 //\n\
  37 // This file is part of the GNU ISO C++ Library.  This library is free\n\
  38 // software; you can redistribute it and/or modify it under the\n\
  39 // terms of the GNU General Public License as published by the\n\
  40 // Free Software Foundation; either version 3, or (at your option)\n\
  41 // any later version.\n\
  42 \n\
  43 // This library is distributed in the hope that it will be useful,\n\
  44 // but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
  45 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n\
  46 // GNU General Public License for more details.\n\
  47 \n\
  48 // You should have received a copy of the GNU General Public License along\n\
  49 // with this library; see the file COPYING3.  If not see\n\
  50 // <http://www.gnu.org/licenses/>.\n\
  51 \n\
  52 // 2013-10-08  Tim Shen  <timshen91@gmail.com>\n\
  53 \n\
  54 #include <testsuite_performance.h>\n\
  55 #include <regex>\n\
  56 \n\
  57 using namespace __gnu_test;\n\
  58 using namespace std;\n\
  59 \n\
  60 void split(string s)\n\
  61 {\n\
  62     regex re(\"\\s+\");\n\
  63     for (auto it = sregex_token_iterator(s.begin(), s.end(), re, -1);\n\
  64          it != sregex_token_iterator();\n\
  65          ++it)\n\
  66       {\n\
  67       }\n\
  68 }\n\
  69 \n\
  70 int main()\n\
  71 {\n\
  72   string source = \"\";\n\
  73   time_counter time;\n\
  74   resource_counter resource;\n\
  75 \n\
  76   source = source + source;\n\
  77   source = source + source;\n\
  78   source = source + source;\n\
  79   source = source + source;\n\
  80   source = source + source;\n\
  81   source = source + source;\n\
  82   source = source + source;\n\
  83   source = source + source;\n\
  84 \n\
  85   start_counters(time, resource);\n\
  86   split(source);\n\
  87   stop_counters(time, resource);\n\
  88   report_performance(__FILE__, \"\", time, resource);\n\
  89 \n\
  90   return 0;\n\
  91 }\n";