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

   1 // { dg-do run { target c++11 } }
   2 // { dg-timeout-factor 2 }
   3
   4 //
   5 // 2010-06-21  Stephen M. Webb <stephen.webb@bregmasoft.ca>
   6 //
   7 // Copyright (C) 2010-2021 Free Software Foundation, Inc.
   8 //
   9 // This file is part of the GNU ISO C++ Library.  This library is free
  10 // software; you can redistribute it and/or modify it under the
  11 // terms of the GNU General Public License as published by the
  12 // Free Software Foundation; either version 3, or (at your option)
  13 // any later version.
  14 //
  15 // This library is distributed in the hope that it will be useful,
  16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 // GNU General Public License for more details.
  19 //
  20 // You should have received a copy of the GNU General Public License along
  21 // with this library; see the file COPYING3.  If not see
  22 // <http://www.gnu.org/licenses/>.
  23
  24 // 28.11.2 regex_match
  25 // Tests ERE against a C-string target, question-mark match.
  26
  27 #include <regex>
  28 #include <testsuite_hooks.h>
  29 #include <testsuite_regex.h>
  30
  31 using namespace __gnu_test;
  32 using namespace std;
  33
  34 void
  35 test01()
  36 {
  37   std::regex  re("(aa?)", std::regex::extended);
  38   char target[] = "a";
  39   std::cmatch m;
  40
  41   VERIFY( regex_match_debug(target, m, re) );
  42
  43   VERIFY( re.mark_count() == 1 );
  44   VERIFY( m.size()  == re.mark_count()+1 );
  45   VERIFY( m.empty() == false );
  46   VERIFY( m.prefix().first == target );
  47   VERIFY( m.prefix().second == target );
  48   VERIFY( m.prefix().matched == false );
  49   VERIFY( m.suffix().first == target+sizeof(target)-1 );
  50   VERIFY( m.suffix().second == target+sizeof(target)-1 );
  51   VERIFY( m.suffix().matched == false );
  52   VERIFY( m[0].first == target );
  53   VERIFY( m[0].second == target+sizeof(target)-1 );
  54   VERIFY( m[0].matched == true );
  55   VERIFY( m[1].first == target );
  56   VERIFY( m[1].second == target+sizeof(target)-1 );
  57   VERIFY( m[1].matched == true );
  58
  59   VERIFY(regex_match_debug("", std::regex("a?", std::regex::extended)));
  60   VERIFY(regex_match_debug("a", std::regex("a?", std::regex::extended)));
  61   VERIFY(!regex_match_debug("aa", std::regex("a?", std::regex::extended)));
  62 }
  63
  64
  65 int
  66 main()
  67 {
  68   test01();
  69   return 0;
  70 }
  71