FM / iostreams

/usr/include/boost/iostreams

Name	Size	Mode	Actions
detail/	-	0755	rm
device/	-	0755	rm
filter/	-	0755	rm
categories.hpp	4737	0644	edit dl rm
chain.hpp	21725	0644	edit dl rm
char_traits.hpp	2433	0644	edit dl rm
checked_operations.hpp	4899	0644	edit dl rm
close.hpp	7012	0644	edit dl rm
code_converter.hpp	14429	0644	edit dl rm
combine.hpp	8686	0644	edit dl rm
compose.hpp	18155	0644	edit dl rm
concepts.hpp	3957	0644	edit dl rm
constants.hpp	1363	0644	edit dl rm
copy.hpp	9430	0644	edit dl rm
filtering_stream.hpp	6970	0644	edit dl rm
filtering_streambuf.hpp	3081	0644	edit dl rm
flush.hpp	3205	0644	edit dl rm
get.hpp	545	0644	edit dl rm
imbue.hpp	2221	0644	edit dl rm
input_sequence.hpp	1991	0644	edit dl rm
invert.hpp	5556	0644	edit dl rm
operations.hpp	940	0644	edit dl rm
operations_fwd.hpp	1036	0644	edit dl rm
optimal_buffer_size.hpp	2433	0644	edit dl rm
output_sequence.hpp	2005	0644	edit dl rm
pipeline.hpp	3646	0644	edit dl rm
positioning.hpp	4102	0644	edit dl rm
put.hpp	546	0644	edit dl rm
putback.hpp	557	0644	edit dl rm
read.hpp	7303	0644	edit dl rm
restrict.hpp	945	0644	edit dl rm
seek.hpp	5457	0644	edit dl rm
skip.hpp	3872	0644	edit dl rm
slice.hpp	1018	0644	edit dl rm
stream.hpp	6133	0644	edit dl rm
stream_buffer.hpp	3904	0644	edit dl rm
tee.hpp	7495	0644	edit dl rm
traits.hpp	11846	0644	edit dl rm
traits_fwd.hpp	2020	0644	edit dl rm
write.hpp	4856	0644	edit dl rm

Edit: /usr/include/boost/iostreams/read.hpp (7303B)

// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
// (C) Copyright 2005-2007 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 BOOST_IOSTREAMS_READ_HPP_INCLUDED
#define BOOST_IOSTREAMS_READ_HPP_INCLUDED

#if defined(_MSC_VER)
# pragma once
#endif

#include <boost/config.hpp>  // DEDUCED_TYPENAME, MSVC.
#include <boost/detail/workaround.hpp>
#include <boost/iostreams/char_traits.hpp>
#include <boost/iostreams/detail/char_traits.hpp>
#include <boost/iostreams/detail/dispatch.hpp>
#include <boost/iostreams/detail/ios.hpp>  // streamsize.
#include <boost/iostreams/detail/streambuf.hpp>
#include <boost/iostreams/detail/wrap_unwrap.hpp>
#include <boost/iostreams/operations_fwd.hpp>
#include <boost/mpl/if.hpp>

// Must come last.
#include <boost/iostreams/detail/config/disable_warnings.hpp>

namespace boost { namespace iostreams {

namespace detail {

template<typename T>
struct read_device_impl;

template<typename T>
struct read_filter_impl;

} // End namespace detail.

template<typename T>
typename int_type_of<T>::type get(T& t)
{ return detail::read_device_impl<T>::get(detail::unwrap(t)); }

template<typename T>
inline std::streamsize
read(T& t, typename char_type_of<T>::type* s, std::streamsize n)
{ return detail::read_device_impl<T>::read(detail::unwrap(t), s, n); }

template<typename T, typename Source>
std::streamsize
read(T& t, Source& src, typename char_type_of<T>::type* s, std::streamsize n)
{ return detail::read_filter_impl<T>::read(detail::unwrap(t), src, s, n); }

template<typename T>
bool putback(T& t, typename char_type_of<T>::type c)
{ return detail::read_device_impl<T>::putback(detail::unwrap(t), c); }

//----------------------------------------------------------------------------//

namespace detail {

// Helper function for adding -1 as EOF indicator.
inline std::streamsize check_eof(std::streamsize n) { return n != 0 ? n : -1; }

// Helper templates for reading from streambufs.
template<bool IsLinked>
struct true_eof_impl;

template<>
struct true_eof_impl<true> {
    template<typename T>
    static bool true_eof(T& t) { return t.true_eof(); }
};

template<>
struct true_eof_impl<false> {
    template<typename T>
    static bool true_eof(T&) { return true; }
};

template<typename T>
inline bool true_eof(T& t)
{
    const bool linked = is_linked<T>::value;
    return true_eof_impl<linked>::true_eof(t);
}

//------------------Definition of read_device_impl----------------------------//

template<typename T>
struct read_device_impl
    : mpl::if_<
          detail::is_custom<T>,
          operations<T>,
          read_device_impl<
              BOOST_DEDUCED_TYPENAME
              detail::dispatch<
                  T, istream_tag, streambuf_tag, input
              >::type
          >
      >::type
    { };

template<>
struct read_device_impl<istream_tag> {
    template<typename T>
    static typename int_type_of<T>::type get(T& t)
    { return t.get(); }

template<typename T>
    static std::streamsize
    read(T& t, typename char_type_of<T>::type* s, std::streamsize n)
    { return check_eof(t.rdbuf()->sgetn(s, n)); }

template<typename T>
    static bool putback(T& t, typename char_type_of<T>::type c)
    {
        typedef typename char_type_of<T>::type          char_type;
        typedef BOOST_IOSTREAMS_CHAR_TRAITS(char_type)  traits_type;
        return !traits_type::eq_int_type( t.rdbuf()->sputbackc(c),
                                          traits_type::eof() );
    }
};

template<>
struct read_device_impl<streambuf_tag> {
    template<typename T>
    static typename int_type_of<T>::type
    get(T& t)
    {   // gcc 2.95 needs namespace qualification for char_traits.
        typedef typename char_type_of<T>::type     char_type;
        typedef iostreams::char_traits<char_type>  traits_type;
        typename int_type_of<T>::type c;
        return !traits_type::is_eof(c = t.sbumpc()) ||
                detail::true_eof(t)
                    ?
                c : traits_type::would_block();
    }

template<typename T>
    static std::streamsize
    read(T& t, typename char_type_of<T>::type* s, std::streamsize n)
    {
        std::streamsize amt;
        return (amt = t.sgetn(s, n)) != 0 ?
            amt :
            detail::true_eof(t) ?
                -1 :
                0;
    }

template<typename T>
    static bool putback(T& t, typename char_type_of<T>::type c)
    {   // gcc 2.95 needs namespace qualification for char_traits.
        typedef typename char_type_of<T>::type     char_type;
        typedef iostreams::char_traits<char_type>  traits_type;
        return !traits_type::is_eof(t.sputbackc(c));
    }
};

template<>
struct read_device_impl<input> {
    template<typename T>
    static typename int_type_of<T>::type
    get(T& t)
    {   // gcc 2.95 needs namespace qualification for char_traits.
        typedef typename char_type_of<T>::type     char_type;
        typedef iostreams::char_traits<char_type>  traits_type;
        char_type c;
        std::streamsize amt;
        return (amt = t.read(&c, 1)) == 1 ?
            traits_type::to_int_type(c) :
            amt == -1 ?
                traits_type::eof() :
                traits_type::would_block();
    }

template<typename T>
    static std::streamsize
    read(T& t, typename char_type_of<T>::type* s, std::streamsize n)
    { return t.read(s, n); }

template<typename T>
    static bool putback(T& t, typename char_type_of<T>::type c)
    {   // T must be Peekable.
        return t.putback(c);
    }
};

//------------------Definition of read_filter_impl----------------------------//

template<typename T>
struct read_filter_impl
    : mpl::if_<
          detail::is_custom<T>,
          operations<T>,
          read_filter_impl<
              BOOST_DEDUCED_TYPENAME
              detail::dispatch<
                  T, multichar_tag, any_tag
              >::type
          >
      >::type
    { };

template<>
struct read_filter_impl<multichar_tag> {
    template<typename T, typename Source>
    static std::streamsize read
       (T& t, Source& src, typename char_type_of<T>::type* s, std::streamsize n)
    { return t.read(src, s, n); }
};

template<>
struct read_filter_impl<any_tag> {
    template<typename T, typename Source>
    static std::streamsize read
       (T& t, Source& src, typename char_type_of<T>::type* s, std::streamsize n)
    {   // gcc 2.95 needs namespace qualification for char_traits.
        typedef typename char_type_of<T>::type     char_type;
        typedef iostreams::char_traits<char_type>  traits_type;
        for (std::streamsize off = 0; off < n; ++off) {
            typename traits_type::int_type c = t.get(src);
            if (traits_type::is_eof(c))
                return check_eof(off);
            if (traits_type::would_block(c))
                return off;
            s[off] = traits_type::to_char_type(c);
        }
        return n;
    }
};

} // End namespace detail.

} } // End namespaces iostreams, boost.

#include <boost/iostreams/detail/config/enable_warnings.hpp>

#endif // #ifndef BOOST_IOSTREAMS_READ_HPP_INCLUDED

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