ceph/src/boost/libs/spirit/example/lex/example.hpp

   1 //  Copyright (c) 2001-2010 Hartmut Kaiser
   2 //  Copyright (c) 2001-2007 Joel de Guzman
   3 //
   4 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 #include <iostream>
   8 #include <fstream>
   9 #include <string>
  10
  11 ///////////////////////////////////////////////////////////////////////////////
  12 //  Helper function reading a file into a string
  13 ///////////////////////////////////////////////////////////////////////////////
  14 inline std::string
  15 read_from_file(char const* infile)
  16 {
  17     std::ifstream instream(infile);
  18     if (!instream.is_open()) {
  19         std::cerr << "Couldn't open file: " << infile << std::endl;
  20         exit(-1);
  21     }
  22     instream.unsetf(std::ios::skipws);      // No white space skipping!
  23     return std::string(std::istreambuf_iterator<char>(instream.rdbuf()),
  24                        std::istreambuf_iterator<char>());
  25 }
  26