libstdc++-v3/testsuite/28_regex/regression.cc

   1 // { dg-do run { target c++11 } }
   2
   3 //
   4 // Copyright (C) 2015-2018 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <testsuite_hooks.h>
  22 #include <testsuite_regex.h>
  23
  24 using namespace __gnu_test;
  25 using namespace std;
  26
  27 // PR libstdc++/67362
  28 void
  29 test01()
  30 {
  31   regex re("((.)", regex_constants::basic);
  32 }
  33
  34 void
  35 test02()
  36 {
  37   std::string re_str
  38     {
  39       "/abcd" "\n"
  40       "/aecf" "\n"
  41       "/ghci"
  42     };
  43   auto rx = std::regex(re_str, std::regex_constants::grep | std::regex_constants::icase);
  44   VERIFY(regex_search_debug("/abcd", rx));
  45 }
  46
  47 void
  48 test03()
  49 {
  50   VERIFY(regex_match_debug("a.", regex(R"(a\b.)"), regex_constants::match_not_eow));
  51   VERIFY(regex_match_debug(".a", regex(R"(.\ba)"), regex_constants::match_not_bow));
  52   VERIFY(regex_search_debug("a", regex(R"(^\b)")));
  53   VERIFY(regex_search_debug("a", regex(R"(\b$)")));
  54   VERIFY(!regex_search_debug("a", regex(R"(^\b)"), regex_constants::match_not_bow));
  55   VERIFY(!regex_search_debug("a", regex(R"(\b$)"), regex_constants::match_not_eow));
  56 }
  57
  58 // PR libstdc++/77356
  59 void
  60 test04()
  61 {
  62   static const char* kNumericAnchor ="(\\$|usd)(usd|\\$|to|and|up to|[0-9,\\.\\-\\sk])+";
  63   const std::regex re(kNumericAnchor);
  64   (void)re;
  65 }
  66
  67 void
  68 test05()
  69 {
  70   VERIFY(regex_match_debug("!", std::regex("[![:alnum:]]")));
  71   VERIFY(regex_match_debug("-", std::regex("[a-]", regex_constants::basic)));
  72   VERIFY(regex_match_debug("-", std::regex("[a-]")));
  73 }
  74
  75 // PR libstdc++/78236
  76 void
  77 test06()
  78 {
  79   char const s[] = "afoo";
  80   std::basic_regex<char> r("(f+)");
  81   {
  82     std::cregex_iterator i(s, s+sizeof(s), r);
  83     std::cregex_iterator j(s, s+sizeof(s), r);
  84     VERIFY(i == j);
  85   }
  86   // The iterator manipulation code must be repeated in the same scope
  87   // to expose the undefined read during the execution of the ==
  88   // operator (stack location reuse)
  89   {
  90     std::cregex_iterator i(s, s+sizeof(s), r);
  91     std::cregex_iterator j;
  92     VERIFY(!(i == j));
  93   }
  94 }
  95
  96 // PR libstdc++/71500
  97 void
  98 test07()
  99 {
 100   bool test [[gnu::unused]] = true;
 101
 102   VERIFY(regex_match_debug("abc abc", regex("([a-z]+) \\1", regex::icase)));
 103   VERIFY(regex_match_debug("Abc abc", regex("([a-z]+) \\1", regex::icase)));
 104   VERIFY(regex_match_debug("abc Abc", regex("([a-z]+) \\1", regex::icase)));
 105 }
 106
 107 int
 108 main()
 109 {
 110   test01();
 111   test02();
 112   test03();
 113   test04();
 114   test05();
 115   test06();
 116   test07();
 117   return 0;
 118 }
 119