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# sbuild-null.h

Go to the documentation of this file.

    00001 /* Copyright © 2005-2006  Roger Leigh <rleigh@debian.org>
    00002  *
    00003  * schroot is free software; you can redistribute it and/or modify it
    00004  * under the terms of the GNU General Public License as published by
    00005  * the Free Software Foundation; either version 2 of the License, or
    00006  * (at your option) any later version.
    00007  *
    00008  * schroot is distributed in the hope that it will be useful, but
    00009  * WITHOUT ANY WARRANTY; without even the implied warranty of
    00010  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00011  * General Public License for more details.
    00012  *
    00013  * You should have received a copy of the GNU General Public License
    00014  * along with this program; if not, write to the Free Software
    00015  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
    00016  * MA  02111-1307  USA
    00017  *
    00018  *********************************************************************/
    00019
    00020 #ifndef SBUILD_NULL_H
    00021 #define SBUILD_NULL_H
    00022
    00023 #include <map>
    00024 #include <stdexcept>
    00025 #include <string>
    00026
    00027 namespace sbuild
    00028 {
    00029
    00034   class null
    00035     {
    00036     public:
    00044       template <class charT, class traits>
    00045       friend
    00046       std::basic_ostream<charT,traits>&
    00047       operator << (std::basic_ostream<charT,traits>& stream,
    00048                    null const&                       rhs)
    00049       {
    00050         return stream << null_output();
    00051       }
    00052
    00053     private:
    00059       static const char *
    00060       null_output ();
    00061   };
    00062
    00063 }
    00064
    00065 #endif /* SBUILD_NULL_H */
    00066
    00067 /*
    00068  * Local Variables:
    00069  * mode:C++
    00070  * End:
    00071  */