boost/exception/detail/object_hex_dump.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_6F463AC838DF11DDA3E6909F56D89593
   7 #define UUID_6F463AC838DF11DDA3E6909F56D89593
   8 #if (__GNUC__*100+__GNUC_MINOR__>301) && !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/detail/type_info.hpp>
  16 #include <iomanip>
  17 #include <ios>
  18 #include <string>
  19 #include <sstream>
  20 #include <cstdlib>
  21
  22 namespace
  23 boost
  24     {
  25     namespace
  26     exception_detail
  27         {
  28         template <class T>
  29         inline
  30         std::string
  31         object_hex_dump( T const & x, std::size_t max_size=16 )
  32             {
  33             std::ostringstream s;
  34             s << "type: " << type_name<T>() << ", size: " << sizeof(T) << ", dump: ";
  35             std::size_t n=sizeof(T)>max_size?max_size:sizeof(T);
  36             s.fill('0');
  37             s.width(2);
  38             unsigned char const * b=reinterpret_cast<unsigned char const *>(&x);
  39             s << std::setw(2) << std::hex << (unsigned int)*b;
  40             for( unsigned char const * e=b+n; ++b!=e; )
  41                 s << " " << std::setw(2) << std::hex << (unsigned int)*b;
  42             return s.str();
  43             }
  44         }
  45     }
  46
  47 #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
  48 #pragma warning(pop)
  49 #endif
  50 #endif