comparison DEPENDENCIES/generic/include/boost/test/utils/nullstream.hpp @ 16:2665513ce2d3

Add boost headers

+//  (C) Copyright Gennadiy Rozental 2002-2008.
+//  (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: 49312 $
+//
+//  Description : simulate /dev/null stream
+// ***************************************************************************
+
+#ifndef BOOST_NULLSTREAM_HPP_071894GER
+#define BOOST_NULLSTREAM_HPP_071894GER
+
+#include <ostream>    // for std::basic_ostream
+#include <streambuf>  // for std::basic_streambuf
+#include <string>     // for std::char_traits
+
+#include <boost/utility/base_from_member.hpp>
+
+#include <boost/test/detail/suppress_warnings.hpp>
+
+//____________________________________________________________________________//
+
+namespace boost {
+
+// ************************************************************************** //
+// **************                 basic_nullbuf                ************** //
+// ************************************************************************** //
+//  Class for a buffer that reads nothing and writes to nothing.
+//  Idea from an Usenet post by Tom <[e-mail]> at
+//  27 Oct 2000 14:06:21 GMT on comp.lang.c++.
+
+template<typename CharType, class CharTraits = ::std::char_traits<CharType> >
+class basic_nullbuf : public ::std::basic_streambuf<CharType, CharTraits> {
+    typedef ::std::basic_streambuf<CharType, CharTraits>  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<char>      nullbuf;
+typedef basic_nullbuf<wchar_t>  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<CharType> >
+class basic_onullstream : private boost::base_from_member<basic_nullbuf<CharType, CharTraits> >
+                        , public ::std::basic_ostream<CharType, CharTraits> {
+    typedef boost::base_from_member<basic_nullbuf<CharType, CharTraits> >   pbase_type;
+    typedef ::std::basic_ostream<CharType, CharTraits>                      base_type;
+public:
+    // Constructor
+    basic_onullstream() : pbase_type(), base_type( &this->pbase_type::member ) {}
+};
+
+#ifdef BOOST_MSVC
+# pragma warning(default: 4355)
+#endif
+
+typedef basic_onullstream<char>      onullstream;
+typedef basic_onullstream<wchar_t>  wonullstream;
+
+}  // namespace boost
+
+//____________________________________________________________________________//
+
+#include <boost/test/detail/enable_warnings.hpp>
+
+#endif  // BOOST_NULLSTREAM_HPP_071894GER