gnu/dist/gcc4/libstdc++-v3/include/tr1/mu_iterate.h

   1 // TR1 functional -*- C++ -*-
   2
   3 // Copyright (C) 2005 Free Software Foundation, Inc.
   4 // Written by Douglas Gregor <doug.gregor -at- gmail.com>
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20 // USA.
  21
  22 // As a special exception, you may use this file as part of a free software
  23 // library without restriction.  Specifically, if other files instantiate
  24 // templates or use macros or inline functions from this file, or you compile
  25 // this file and link it with other files to produce an executable, this
  26 // file does not by itself cause the resulting executable to be covered by
  27 // the GNU General Public License.  This exception does not however
  28 // invalidate any other reasons why the executable file might be covered by
  29 // the GNU General Public License.
  30
  31 /** @file mu_iterate.h
  32  *  This is an internal header file, included by other library headers.
  33  *  You should not attempt to use it directly.
  34  */
  35
  36 // Determine the result type when we pass the arguments along. This
  37 // involves passing along the cv-qualifiers placed on _Mu and
  38 // unwrapping the argument bundle.
  39 template<typename _CVMu, typename _CVArg
  40          _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS>
  41 class result<_CVMu(_CVArg, tuple<_GLIBCXX_TEMPLATE_ARGS>)>
  42   : public result_of<_CVArg(_GLIBCXX_TEMPLATE_ARGS)> { };
  43
  44 template<typename _CVArg _GLIBCXX_COMMA _GLIBCXX_TEMPLATE_PARAMS>
  45 typename result_of<_CVArg(_GLIBCXX_TEMPLATE_ARGS)>::type
  46 operator()(_CVArg& __arg, const tuple<_GLIBCXX_TEMPLATE_ARGS>& __tuple)
  47   const volatile
  48 {
  49   return __arg(_GLIBCXX_MU_GET_TUPLE_ARGS);
  50 }
  51