text: // { dg-do run { target c++11 } }
  
  //
  // 2013-09-24  Tim Shen <timshen91@gmail.com>
  //
  // Copyright (C) 2013-2017 Free Software Foundation, Inc.
  //
  // This file is part of the GNU ISO C++ Library.  This library is free
  // software; you can redistribute it and/or modify it under the
  // terms of the GNU General Public License as published by the
  // Free Software Foundation; either version 3, or (at your option)
  // any later version.
  //
  // This library is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  // GNU General Public License for more details.
  //
  // You should have received a copy of the GNU General Public License along
  // with this library; see the file COPYING3.  If not see
  // <http://www.gnu.org/licenses/>.
  
  // 28.11.4 regex_replace
  // Tests ECMAScript regex_replace.
  
  #include <regex>
  #include <testsuite_hooks.h>
  
  using namespace std;
  
  void
  test01()
  {
    VERIFY(regex_replace(string("This is a string"), regex("\\b\\w*\\b"), "|$0|")
  	 == "|This||| |is||| |a||| |string|||");
    VERIFY(regex_replace(string("This is a string"), regex("\\b\\w*\\b"), "|$0|",
  		       regex_constants::format_no_copy)
  	 == "|This||||is||||a||||string|||");
    VERIFY(regex_replace(string("This is a string"), regex("\\b\\w*\\b"), "|$0|",
  		       regex_constants::format_first_only)
  	 == "|This| is a string");
  }
  
  int
  main()
  {
    test01();
    return 0;
  }
  