1 // Copyright (C) 2014-2019 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 #include <regex>
19 #include <testsuite_performance.h>
20 
21 using namespace __gnu_test;
22 
main()23 int main()
24 {
25   time_counter time;
26   resource_counter resource;
27 
28   start_counters(time, resource);
29 
30   // this should get compiled to just L"[abcd]"
31   auto re = std::wregex(L'[' + std::wstring(300, L'a') + L"bc"
32                         + std::wstring(1000, 'a') + L"d]");
33   bool ok = true;
34   for (int i = 0; i < 100000; ++i)
35     ok = ok && (std::regex_match(L"b", re) && std::regex_match(L"d", re));
36 
37   stop_counters(time, resource);
38   report_performance(__FILE__, "", time, resource);
39 
40   return ok ? 0 : 1;
41 }
42