libs/regex/test/pathology/bad_expression_test.cpp

/*
 *
 * Copyright (c) 1998-2002
 * John Maddock
 *
 * Use, modification and distribution are subject to the 
 * Boost Software License, Version 1.0. (See accompanying file 
 * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 *
 */
 /*
  *   LOCATION:    see http://www.boost.org for most recent version.
  *   FILE:        recursion_test.cpp
  *   VERSION:     see <boost/version.hpp>
  *   DESCRIPTION: Test for indefinite recursion and/or stack overrun.
  */
#include <string>
#include <boost/regex.hpp>
#include <boost/detail/lightweight_main.hpp>
#include "../test_macros.hpp"
#ifdef BOOST_INTEL
#pragma warning(disable:1418 981 983 383)
#endif
int cpp_main( int , char* [] )
{
   std::string bad_text(1024, ' ');
   std::string good_text(200, ' ');
   good_text.append("xyz");
   boost::smatch what;
   boost::regex e1("(.+)+xyz");
   BOOST_CHECK(boost::regex_search(good_text, what, e1));
   BOOST_CHECK_THROW(boost::regex_search(bad_text, what, e1), std::runtime_error);
   BOOST_CHECK(boost::regex_search(good_text, what, e1));
   BOOST_CHECK(boost::regex_match(good_text, what, e1));
   BOOST_CHECK_THROW(boost::regex_match(bad_text, what, e1), std::runtime_error);
   BOOST_CHECK(boost::regex_match(good_text, what, e1));
   boost::regex e2("abc|[[:space:]]+(xyz)?[[:space:]]+xyz");
   BOOST_CHECK(boost::regex_search(good_text, what, e2));
   BOOST_CHECK_THROW(boost::regex_search(bad_text, what, e2), std::runtime_error);
   BOOST_CHECK(boost::regex_search(good_text, what, e2));
   bad_text.assign((std::string::size_type)500000, 'a');
   e2.assign("aaa*@");
   BOOST_CHECK_THROW(boost::regex_search(bad_text, what, e2), std::runtime_error);
   good_text.assign((std::string::size_type)5000, 'a');
   BOOST_CHECK(0 == boost::regex_search(good_text, what, e2));
   return 0;
}