blob: b2d812e92e3db65f5e2e25d41eaa0dfee91f3905 [file] [log] [blame]
// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
// (C) Copyright 2003-2007 Jonathan Turkanis
// 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/libs/iostreams for documentation.
#ifndef NDNBOOST_IOSTREAMS_WRITE_HPP_INCLUDED
#define NDNBOOST_IOSTREAMS_WRITE_HPP_INCLUDED
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
#include <ndnboost/config.hpp> // DEDUCED_TYPENAME, MSVC.
#include <ndnboost/detail/workaround.hpp>
#include <ndnboost/iostreams/categories.hpp>
#include <ndnboost/iostreams/detail/char_traits.hpp>
#include <ndnboost/iostreams/detail/dispatch.hpp>
#include <ndnboost/iostreams/detail/ios.hpp> // streamsize.
#include <ndnboost/iostreams/detail/streambuf.hpp>
#include <ndnboost/iostreams/detail/wrap_unwrap.hpp>
#include <ndnboost/iostreams/operations_fwd.hpp>
#include <ndnboost/iostreams/traits.hpp>
#include <ndnboost/mpl/if.hpp>
// Must come last.
#include <ndnboost/iostreams/detail/config/disable_warnings.hpp>
#if NDNBOOST_WORKAROUND(NDNBOOST_MSVC, < 1300) //-----------------------------------//
# include <ndnboost/iostreams/detail/vc6/write.hpp>
#else // #if NDNBOOST_WORKAROUND(NDNBOOST_MSVC, < 1300) //--------------------------//
namespace ndnboost { namespace iostreams {
namespace detail {
template<typename T>
struct write_device_impl;
template<typename T>
struct write_filter_impl;
} // End namespace detail.
template<typename T>
bool put(T& t, typename char_type_of<T>::type c)
{ return detail::write_device_impl<T>::put(detail::unwrap(t), c); }
template<typename T>
inline std::streamsize write
(T& t, const typename char_type_of<T>::type* s, std::streamsize n)
{ return detail::write_device_impl<T>::write(detail::unwrap(t), s, n); }
template<typename T, typename Sink>
inline std::streamsize
write( T& t, Sink& snk, const typename char_type_of<T>::type* s,
std::streamsize n )
{ return detail::write_filter_impl<T>::write(detail::unwrap(t), snk, s, n); }
namespace detail {
//------------------Definition of write_device_impl---------------------------//
template<typename T>
struct write_device_impl
: mpl::if_<
is_custom<T>,
operations<T>,
write_device_impl<
NDNBOOST_DEDUCED_TYPENAME
dispatch<
T, ostream_tag, streambuf_tag, output
>::type
>
>::type
{ };
template<>
struct write_device_impl<ostream_tag> {
template<typename T>
static bool put(T& t, typename char_type_of<T>::type c)
{
typedef typename char_type_of<T>::type char_type;
typedef NDNBOOST_IOSTREAMS_CHAR_TRAITS(char_type) traits_type;
return !traits_type::eq_int_type( t.rdbuf()->sputc(c),
traits_type::eof() );
}
template<typename T>
static std::streamsize write
(T& t, const typename char_type_of<T>::type* s, std::streamsize n)
{ return t.rdbuf()->sputn(s, n); }
};
template<>
struct write_device_impl<streambuf_tag> {
template<typename T>
static bool put(T& t, typename char_type_of<T>::type c)
{
typedef typename char_type_of<T>::type char_type;
typedef NDNBOOST_IOSTREAMS_CHAR_TRAITS(char_type) traits_type;
return !traits_type::eq_int_type(t.sputc(c), traits_type::eof());
}
template<typename T>
static std::streamsize write
(T& t, const typename char_type_of<T>::type* s, std::streamsize n)
{ return t.sputn(s, n); }
};
template<>
struct write_device_impl<output> {
template<typename T>
static bool put(T& t, typename char_type_of<T>::type c)
{ return t.write(&c, 1) == 1; }
template<typename T>
static std::streamsize
write(T& t, const typename char_type_of<T>::type* s, std::streamsize n)
{ return t.write(s, n); }
};
//------------------Definition of write_filter_impl---------------------------//
template<typename T>
struct write_filter_impl
: mpl::if_<
is_custom<T>,
operations<T>,
write_filter_impl<
NDNBOOST_DEDUCED_TYPENAME
dispatch<
T, multichar_tag, any_tag
>::type
>
>::type
{ };
template<>
struct write_filter_impl<multichar_tag> {
template<typename T, typename Sink>
static std::streamsize
write( T& t, Sink& snk, const typename char_type_of<T>::type* s,
std::streamsize n )
{ return t.write(snk, s, n); }
};
template<>
struct write_filter_impl<any_tag> {
template<typename T, typename Sink>
static std::streamsize
write( T& t, Sink& snk, const typename char_type_of<T>::type* s,
std::streamsize n )
{
for (std::streamsize off = 0; off < n; ++off)
if (!t.put(snk, s[off]))
return off;
return n;
}
};
} // End namespace detail.
} } // End namespaces iostreams, boost.
#endif // #if NDNBOOST_WORKAROUND(NDNBOOST_MSVC, < 1300) //-------------------------//
#include <ndnboost/iostreams/detail/config/enable_warnings.hpp>
#endif // #ifndef NDNBOOST_IOSTREAMS_WRITE_HPP_INCLUDED