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/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
// basic_text_iprimitive.ipp:
// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// See http://www.boost.org for updates, documentation, and revision history.
#include <cstddef> // size_t
#include <cstddef> // NULL
#include <boost/config.hpp>
#if defined(BOOST_NO_STDC_NAMESPACE)
namespace std{
using ::size_t;
} // namespace std
#endif
#include <boost/serialization/throw_exception.hpp>
#include <boost/serialization/pfto.hpp>
#include <boost/archive/basic_text_iprimitive.hpp>
#include <boost/archive/codecvt_null.hpp>
#include <boost/archive/add_facet.hpp>
#include <boost/archive/iterators/remove_whitespace.hpp>
#include <boost/archive/iterators/istream_iterator.hpp>
#include <boost/archive/iterators/binary_from_base64.hpp>
#include <boost/archive/iterators/transform_width.hpp>
namespace boost {
namespace archive {
namespace detail {
template<class CharType>
bool is_whitespace(CharType c);
template<>
bool is_whitespace(char t){
return 0 != std::isspace(t);
}
#ifndef BOOST_NO_CWCHAR
template<>
bool is_whitespace(wchar_t t){
return 0 != std::iswspace(t);
}
#endif
} // detail
// translate base64 text into binary and copy into buffer
// until buffer is full.
template<class IStream>
BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
basic_text_iprimitive<IStream>::load_binary(
void *address,
std::size_t count
){
typedef typename IStream::char_type CharType;
if(0 == count)
return;
BOOST_ASSERT(
static_cast<std::size_t>((std::numeric_limits<std::streamsize>::max)())
> (count + sizeof(CharType) - 1)/sizeof(CharType)
);
if(is.fail())
boost::serialization::throw_exception(
archive_exception(archive_exception::input_stream_error)
);
// convert from base64 to binary
typedef typename
iterators::transform_width<
iterators::binary_from_base64<
iterators::remove_whitespace<
iterators::istream_iterator<CharType>
>
,CharType
>
,8
,6
,CharType
>
binary;
binary i = binary(
BOOST_MAKE_PFTO_WRAPPER(
iterators::istream_iterator<CharType>(is)
)
);
char * caddr = static_cast<char *>(address);
// take care that we don't increment anymore than necessary
while(count-- > 0){
*caddr++ = static_cast<char>(*i++);
}
// skip over any excess input
for(;;){
typename IStream::int_type r;
r = is.get();
if(is.eof())
break;
if(detail::is_whitespace(static_cast<CharType>(r)))
break;
}
}
template<class IStream>
BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
basic_text_iprimitive<IStream>::basic_text_iprimitive(
IStream &is_,
bool no_codecvt
) :
#ifndef BOOST_NO_STD_LOCALE
is(is_),
flags_saver(is_),
precision_saver(is_),
archive_locale(NULL),
locale_saver(* is_.rdbuf())
{
if(! no_codecvt){
archive_locale.reset(
add_facet(
std::locale::classic(),
new codecvt_null<typename IStream::char_type>
)
);
is.imbue(* archive_locale);
}
is >> std::noboolalpha;
}
#else
is(is_),
flags_saver(is_),
precision_saver(is_)
{}
#endif
template<class IStream>
BOOST_ARCHIVE_OR_WARCHIVE_DECL(BOOST_PP_EMPTY())
basic_text_iprimitive<IStream>::~basic_text_iprimitive(){
is.sync();
}
} // namespace archive
} // namespace boost
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Swift