libzmq/src/blob.hpp

/*
    Copyright (c) 2010 250bpm s.r.o.
    Copyright (c) 2010-2011 Other contributors as noted in the AUTHORS file

    This file is part of 0MQ.

    0MQ is free software; you can redistribute it and/or modify it under
    the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    0MQ 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 Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef __ZMQ_BLOB_HPP_INCLUDED__
#define __ZMQ_BLOB_HPP_INCLUDED__

#include <string>

// Borrowed from id3lib_strings.h:
// They seem to be doing something for MSC, but since I only have gcc, I'll just do that
// Assuming this is uneccessary on GCC 4
// #if (defined(__GNUC__) && (__GNUC__ >= 3) || (defined(_MSC_VER) && _MSC_VER > 1000))
#if (defined(__GNUC__) && (__GNUC__ >= 3) && (__GNUC__ <= 4))
namespace std
{
  template<>
    struct char_traits<unsigned char>
    {
      typedef unsigned char char_type;
      // Unsigned as wint_t in unsigned.
      typedef unsigned long  	int_type;
      typedef streampos 	pos_type;
      typedef streamoff 	off_type;
      typedef mbstate_t 	state_type;

      static void
      assign(char_type& __c1, const char_type& __c2)
      { __c1 = __c2; }

      static bool
      eq(const char_type& __c1, const char_type& __c2)
      { return __c1 == __c2; }

      static bool
      lt(const char_type& __c1, const char_type& __c2)
      { return __c1 < __c2; }

      static int
      compare(const char_type* __s1, const char_type* __s2, size_t __n)
      {
        for (size_t __i = 0; __i < __n; ++__i)
          if (!eq(__s1[__i], __s2[__i]))
            return lt(__s1[__i], __s2[__i]) ? -1 : 1;
        return 0;
      }

      static size_t
      length(const char_type* __s)
      {
        const char_type* __p = __s;
          while (__p)
            ++__p;
        return (__p - __s);
      }

      static const char_type*
      find(const char_type* __s, size_t __n, const char_type& __a)
      {
        for (const char_type* __p = __s; size_t(__p - __s) < __n; ++__p)
          if (*__p == __a) return __p;
        return 0;
      }

      static char_type*
      move(char_type* __s1, const char_type* __s2, size_t __n)
      { return (char_type*) memmove(__s1, __s2, __n * sizeof(char_type)); }

      static char_type*
      copy(char_type* __s1, const char_type* __s2, size_t __n)
      { return (char_type*) memcpy(__s1, __s2, __n * sizeof(char_type)); }

      static char_type*
      assign(char_type* __s, size_t __n, char_type __a)
      {
        for (char_type* __p = __s; __p < __s + __n; ++__p)
          assign(*__p, __a);
        return __s;
      }

      static char_type
      to_char_type(const int_type& __c)
      { return char_type(); }

      static int_type
      to_int_type(const char_type& __c) { return int_type(); }

      static bool
      eq_int_type(const int_type& __c1, const int_type& __c2)
      { return __c1 == __c2; }

      static int_type
      eof() { return static_cast<int_type>(-1); }

      static int_type
      not_eof(const int_type& __c)
      { return eq_int_type(__c, eof()) ? int_type(0) : __c; }
    };

} // namespace std
#endif // GCC version 3


namespace zmq
{

    //  Object to hold dynamically allocated opaque binary data.
    typedef std::basic_string <unsigned char> blob_t;

}

#endif