/usr/include/boost/test/utils
Edit: /usr/include/boost/test/utils/nullstream.hpp (3990B)
// (C) Copyright Gennadiy Rozental 2001.
// (C) Copyright Daryle Walker 2000-2001.
// 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/test for the library home page.
//
// File : $RCSfile$
//
// Version : $Revision$
//
// Description : simulate /dev/null stream
// ***************************************************************************
#ifndef BOOST_TEST_UTILS_NULLSTREAM_HPP
#define BOOST_TEST_UTILS_NULLSTREAM_HPP
// STL
#include
// for std::basic_ostream
#include // for std::basic_streambuf
#include // for std::char_traits
// Boost
#include
#include
//____________________________________________________________________________//
namespace boost {
// ************************************************************************** //
// ************** basic_nullbuf ************** //
// ************************************************************************** //
// Class for a buffer that reads nothing and writes to nothing.
// Idea from an Usenet post by Tom at
// 27 Oct 2000 14:06:21 GMT on comp.lang.c++.
template >
class basic_nullbuf : public ::std::basic_streambuf {
typedef ::std::basic_streambuf base_type;
public:
// Types
typedef typename base_type::char_type char_type;
typedef typename base_type::traits_type traits_type;
typedef typename base_type::int_type int_type;
typedef typename base_type::pos_type pos_type;
typedef typename base_type::off_type off_type;
// Use automatic default constructor and destructor
protected:
// The default implementations of the miscellaneous virtual
// member functions are sufficient.
// The default implementations of the input & putback virtual
// member functions, being nowhere but EOF, are sufficient.
// The output virtual member functions need to be changed to
// accept anything without any problems, instead of being at EOF.
virtual ::std::streamsize xsputn( char_type const* /*s*/, ::std::streamsize n ) { return n; } // "s" is unused
virtual int_type overflow( int_type c = traits_type::eof() ) { return traits_type::not_eof( c ); }
};
typedef basic_nullbuf nullbuf;
typedef basic_nullbuf wnullbuf;
// ************************************************************************** //
// ************** basic_onullstream ************** //
// ************************************************************************** //
// Output streams based on basic_nullbuf.
#ifdef BOOST_MSVC
# pragma warning(push)
# pragma warning(disable: 4355) // 'this' : used in base member initializer list
#endif
template< typename CharType, class CharTraits = ::std::char_traits >
class basic_onullstream : private boost::base_from_member >
, public ::std::basic_ostream {
typedef boost::base_from_member > pbase_type;
typedef ::std::basic_ostream base_type;
public:
// Constructor
basic_onullstream() : pbase_type(), base_type( &this->pbase_type::member ) {}
};
#ifdef BOOST_MSVC
# pragma warning(default: 4355)
# pragma warning(pop)
#endif
typedef basic_onullstream onullstream;
typedef basic_onullstream wonullstream;
} // namespace boost
//____________________________________________________________________________//
#include
#endif // BOOST_TEST_UTILS_NULLSTREAM_HPP