src/boost/boost/exception/errinfo_errno.hpp

   1 //Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
   2
   3 //Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 //file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifndef UUID_F0EE17BE6C1211DE87FF459155D89593
   7 #define UUID_F0EE17BE6C1211DE87FF459155D89593
   8 #if defined(__GNUC__) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
   9 #pragma GCC system_header
  10 #endif
  11 #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
  12 #pragma warning(push,1)
  13 #endif
  14
  15 #include "boost/exception/info.hpp"
  16 #include <errno.h>
  17 #include <string.h>
  18
  19 namespace
  20 boost
  21     {
  22     typedef error_info<struct errinfo_errno_,int> errinfo_errno;
  23
  24     //Usage hint:
  25     //if( c_function(....)!=0 )
  26     //    BOOST_THROW_EXCEPTION(
  27     //        failure() <<
  28     //        errinfo_errno(errno) <<
  29     //        errinfo_api_function("c_function") );
  30     inline
  31     std::string
  32     to_string( errinfo_errno const & e )
  33         {
  34         std::ostringstream tmp;
  35         int v=e.value();
  36         tmp << v << ", \"" << strerror(v) << "\"";
  37         return tmp.str();
  38         }
  39     }
  40
  41 #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
  42 #pragma warning(pop)
  43 #endif
  44 #endif