mirror of
https://git.suyu.dev/suyu/suyu.git
synced 2024-12-22 08:20:57 +01:00
58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
|
/*
|
||
|
|
Copyright 2021 Glen Joseph Fernandes
|
||
|
|
(glenjofe@gmail.com)
|
||
|
|
|
||
|
|
Distributed under the Boost Software License, Version 1.0.
|
||
|
|
(http://www.boost.org/LICENSE_1_0.txt)
|
||
|
|
*/
|
||
|
|
#ifndef BOOST_IO_NULLSTREAM_HPP
|
||
|
|
#define BOOST_IO_NULLSTREAM_HPP
|
||
|
|
|
||
|
|
#include <boost/config.hpp>
|
||
|
|
#include <ostream>
|
||
|
|
#include <streambuf>
|
||
|
|
|
||
|
|
namespace boost {
|
||
|
|
namespace io {
|
||
|
|
|
||
|
|
template<class CharT, class Traits = std::char_traits<CharT> >
|
||
|
|
class basic_nullbuf
|
||
|
|
: public std::basic_streambuf<CharT, Traits> {
|
||
|
|
protected:
|
||
|
|
typename Traits::int_type overflow(typename Traits::int_type c)
|
||
|
|
BOOST_OVERRIDE {
|
||
|
|
return Traits::not_eof(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
std::streamsize xsputn(const CharT*, std::streamsize n) BOOST_OVERRIDE {
|
||
|
|
return n;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
namespace detail {
|
||
|
|
|
||
|
|
template<class CharT, class Traits>
|
||
|
|
struct nullbuf {
|
||
|
|
boost::io::basic_nullbuf<CharT, Traits> buf;
|
||
|
|
};
|
||
|
|
|
||
|
|
} /* detail */
|
||
|
|
|
||
|
|
template<class CharT, class Traits = std::char_traits<CharT> >
|
||
|
|
class basic_onullstream
|
||
|
|
: detail::nullbuf<CharT, Traits>
|
||
|
|
, public std::basic_ostream<CharT, Traits> {
|
||
|
|
public:
|
||
|
|
basic_onullstream()
|
||
|
|
: std::basic_ostream<CharT, Traits>(&(detail::nullbuf<CharT,
|
||
|
|
Traits>::buf)) { }
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef basic_onullstream<char> onullstream;
|
||
|
|
typedef basic_onullstream<wchar_t> wonullstream;
|
||
|
|
|
||
|
|
} /* io */
|
||
|
|
} /* boost */
|
||
|
|
|
||
|
|
#endif
|