Chris@16: #ifndef BOOST_ARCHIVE_ITERATORS_BASE64_EXCEPTION_HPP
Chris@16: #define BOOST_ARCHIVE_ITERATORS_BASE64_EXCEPTION_HPP
Chris@16: 
Chris@16: // MS compatible compilers support #pragma once
Chris@101: #if defined(_MSC_VER)
Chris@16: # pragma once
Chris@16: #endif
Chris@16: 
Chris@16: /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
Chris@16: // base64_exception.hpp:
Chris@16: 
Chris@16: // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
Chris@16: // Use, modification and distribution is subject to the Boost Software
Chris@16: // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: //  See http://www.boost.org for updates, documentation, and revision history.
Chris@16: 
Chris@16: #include <boost/config.hpp>
Chris@16: #ifndef BOOST_NO_EXCEPTIONS
Chris@16: #include <exception>
Chris@16: 
Chris@16: #include <boost/assert.hpp>
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace archive {
Chris@16: namespace iterators {
Chris@16: 
Chris@16: //////////////////////////////////////////////////////////////////////
Chris@16: // exceptions thrown by base64s
Chris@16: //
Chris@16: class base64_exception : public std::exception
Chris@16: {
Chris@16: public:
Chris@16:     typedef enum {
Chris@16:         invalid_code,       // attempt to encode a value > 6 bits
Chris@16:         invalid_character,  // decode a value not in base64 char set
Chris@16:         other_exception
Chris@16:     } exception_code;
Chris@16:     exception_code code;
Chris@16: 
Chris@16:     base64_exception(exception_code c = other_exception) : code(c)
Chris@16:     {}
Chris@16: 
Chris@16:     virtual const char *what( ) const throw( )
Chris@16:     {
Chris@16:         const char *msg = "unknown exception code";
Chris@16:         switch(code){
Chris@16:         case invalid_code:
Chris@16:             msg = "attempt to encode a value > 6 bits";
Chris@16:             break;
Chris@16:         case invalid_character:
Chris@16:             msg = "attempt to decode a value not in base64 char set";
Chris@16:             break;
Chris@16:         default:
Chris@16:             BOOST_ASSERT(false);
Chris@16:             break;
Chris@16:         }
Chris@16:         return msg;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: } // namespace iterators
Chris@16: } // namespace archive
Chris@16: } // namespace boost
Chris@16: 
Chris@16: #endif //BOOST_NO_EXCEPTIONS
Chris@16: #endif //BOOST_ARCHIVE_ITERATORS_ARCHIVE_EXCEPTION_HPP