libmsn 4.2.1
/home/salem/libmsn/tags/libmsn-4.2/msn/sstream_fix.h
00001 /*
00002  * This file is one big nasty kludge because the older
00003  * libstdc++ libraries (before v3) have the old strstream
00004  * but I want to use the new, and much improved sstream.
00005  * - Barnaby
00006  *
00007  * Copyright (C) 2001 Barnaby Gray <barnaby@beedesign.co.uk>
00008  *
00009  * This library is free software; you can redistribute it and/or
00010  * modify it under the terms of the GNU Lesser General Public
00011  * License as published by the Free Software Foundation; either
00012  * version 2.1 of the License, or (at your option) any later version.
00013  *
00014  * This library is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017  * Lesser General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU Lesser General Public
00020  * License along with this library; if not, write to the Free Software
00021  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
00022  *
00023  */
00024 
00025 #ifdef HAVE_CONFIG_H
00026 # include <config.h>
00027 #endif
00028 
00029 #ifdef HAVE_SSTREAM
00030 # include <sstream>
00031 #elif HAVE_STRSTREAM
00032 # define USE_STRSTREAM_WRAPPERS
00033 #else
00034 # error "No sstream/strstream implementation"
00035 #endif
00036 
00037 #if defined(USE_STRSTREAM_WRAPPERS) && !defined(SSTREAM_FIX_H)
00038 #define SSTREAM_FIX_H
00039 
00040 #include <string>
00041 #include <strstream>
00042 
00043 #include "libmsn_export.h"
00044 
00045 namespace std
00046 {
00047 
00048   /*
00049    * Only limited functionality from ostringstream
00050    * is implemented
00051    */
00052   class ostringstream : public ostrstream {
00053    public:
00054     string str() {
00055       char *cstr = ostrstream::str();
00056       freeze(0);
00057       if (cstr == 0) return string();
00058       return string(cstr,pcount());
00059     }
00060   };
00061 
00062   /*
00063    * Only limited functionality from istringstream
00064    * is implemented
00065    */
00066   class istringstream : public istrstream {
00067    public:
00068     istringstream(const string& str)
00069       : istrstream(str.c_str()) { }
00070   };
00071 
00072 }
00073 
00074 #endif
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