libstdc++-v3/testsuite/28_regex/algorithms/regex_match/extended/cstring_questionmark.cc

   1 // { dg-do run { target c++11 } }
   2
   3 //
   4 // 2010-06-21  Stephen M. Webb <stephen.webb@bregmasoft.ca>
   5 //
   6 // Copyright (C) 2010-2019 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13 //
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18 //
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 // 28.11.2 regex_match
  24 // Tests ERE against a C-string target, question-mark match.
  25
  26 #include <regex>
  27 #include <testsuite_hooks.h>
  28 #include <testsuite_regex.h>
  29
  30 using namespace __gnu_test;
  31 using namespace std;
  32
  33 void
  34 test01()
  35 {
  36   std::regex  re("(aa?)", std::regex::extended);
  37   char target[] = "a";
  38   std::cmatch m;
  39
  40   VERIFY( regex_match_debug(target, m, re) );
  41
  42   VERIFY( re.mark_count() == 1 );
  43   VERIFY( m.size()  == re.mark_count()+1 );
  44   VERIFY( m.empty() == false );
  45   VERIFY( m.prefix().first == target );
  46   VERIFY( m.prefix().second == target );
  47   VERIFY( m.prefix().matched == false );
  48   VERIFY( m.suffix().first == target+sizeof(target)-1 );
  49   VERIFY( m.suffix().second == target+sizeof(target)-1 );
  50   VERIFY( m.suffix().matched == false );
  51   VERIFY( m[0].first == target );
  52   VERIFY( m[0].second == target+sizeof(target)-1 );
  53   VERIFY( m[0].matched == true );
  54   VERIFY( m[1].first == target );
  55   VERIFY( m[1].second == target+sizeof(target)-1 );
  56   VERIFY( m[1].matched == true );
  57
  58   VERIFY(regex_match_debug("", std::regex("a?", std::regex::extended)));
  59   VERIFY(regex_match_debug("a", std::regex("a?", std::regex::extended)));
  60   VERIFY(!regex_match_debug("aa", std::regex("a?", std::regex::extended)));
  61 }
  62
  63
  64 int
  65 main()
  66 {
  67   test01();
  68   return 0;
  69 }
  70