discard_output_stream.hh

00001 /* vim: set sw=4 sts=4 et foldmethod=syntax : */
00002 
00003 /*
00004  * Copyright (c) 2009 Ciaran McCreesh
00005  *
00006  * This file is part of the Paludis package manager. Paludis is free software;
00007  * you can redistribute it and/or modify it under the terms of the GNU General
00008  * Public License version 2, as published by the Free Software Foundation.
00009  *
00010  * Paludis is distributed in the hope that it will be useful, but WITHOUT ANY
00011  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00012  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
00013  * details.
00014  *
00015  * You should have received a copy of the GNU General Public License along with
00016  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
00017  * Place, Suite 330, Boston, MA  02111-1307  USA
00018  */
00019 
00020 #ifndef PALUDIS_GUARD_PALUDIS_UTIL_DISCARD_OUTPUT_STREAM_HH
00021 #define PALUDIS_GUARD_PALUDIS_UTIL_DISCARD_OUTPUT_STREAM_HH 1
00022 
00023 #include <paludis/util/attributes.hh>
00024 #include <ostream>
00025 
00026 namespace paludis
00027 {
00028     class PALUDIS_VISIBLE DiscardOutputStreamBuf :
00029         public std::streambuf
00030     {
00031         protected:
00032             virtual int_type
00033             overflow(int_type c);
00034 
00035             virtual std::streamsize
00036             xsputn(const char * s, std::streamsize num);
00037     };
00038 
00039     class PALUDIS_VISIBLE DiscardOutputStreamBase
00040     {
00041         protected:
00042             DiscardOutputStreamBuf buf;
00043     };
00044 
00045     class PALUDIS_VISIBLE DiscardOutputStream :
00046         protected DiscardOutputStreamBase,
00047         public std::ostream
00048     {
00049         public:
00050             ///\name Basic operations
00051             ///\{
00052 
00053             DiscardOutputStream();
00054 
00055             ///\}
00056     };
00057 }
00058 
00059 #endif

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