PLearn 0.1
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00001 // -*- C++ -*- 00002 00003 // PLearn (A C++ Machine Learning Library) 00004 // Copyright (C) 2002 Xavier Saint-Mleux <saintmlx@iro.umontreal.ca> 00005 // 00006 00007 // Redistribution and use in source and binary forms, with or without 00008 // modification, are permitted provided that the following conditions are met: 00009 // 00010 // 1. Redistributions of source code must retain the above copyright 00011 // notice, this list of conditions and the following disclaimer. 00012 // 00013 // 2. Redistributions in binary form must reproduce the above copyright 00014 // notice, this list of conditions and the following disclaimer in the 00015 // documentation and/or other materials provided with the distribution. 00016 // 00017 // 3. The name of the authors may not be used to endorse or promote 00018 // products derived from this software without specific prior written 00019 // permission. 00020 // 00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00031 // 00032 // This file is part of the PLearn library. For more information on the PLearn 00033 // library, go to the PLearn Web site at www.plearn.org 00034 00035 00036 #ifndef pl_nullstreambuf_INC 00037 #define pl_nullstreambuf_INC 00038 00039 #if __GNUC__ < 3 && !defined(WIN32) 00040 # include <streambuf.h> 00041 #else 00042 # include <streambuf> 00043 #endif 00044 #include <cstdio> //Needed by g++ 4.5.1 00045 00046 namespace PLearn { 00047 using namespace std; 00048 00055 class pl_nullstreambuf : public streambuf 00056 { 00057 private: 00058 #if __GNUC__ < 3 && !defined(WIN32) 00059 typedef int int_type; 00060 #endif 00061 static const int_type eof = EOF; 00062 00063 protected: 00065 virtual int_type underflow() { return pl_nullstreambuf::eof; } 00066 00068 virtual int_type overflow(int_type meta = pl_nullstreambuf::eof) { return meta; } 00069 00070 public: 00072 pl_nullstreambuf() :streambuf() {} 00073 }; 00074 00075 } // namespace PLearn 00076 00077 #endif //ndef pl_nullstreambuf_INC 00078 00079 00080 /* 00081 Local Variables: 00082 mode:c++ 00083 c-basic-offset:4 00084 c-file-style:"stroustrup" 00085 c-file-offsets:((innamespace . 0)(inline-open . 0)) 00086 indent-tabs-mode:nil 00087 fill-column:79 00088 End: 00089 */ 00090 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :