ceph/src/boost/libs/mpl/include/boost/mpl/replace_if.hpp

   1
   2 #ifndef BOOST_MPL_REPLACE_IF_HPP_INCLUDED
   3 #define BOOST_MPL_REPLACE_IF_HPP_INCLUDED
   4
   5 // Copyright Aleksey Gurtovoy 2000-2004
   6 // Copyright John R. Bandela 2000-2002
   7 // Copyright David Abrahams 2003-2004
   8 //
   9 // Distributed under the Boost Software License, Version 1.0.
  10 // (See accompanying file LICENSE_1_0.txt or copy at
  11 // http://www.boost.org/LICENSE_1_0.txt)
  12 //
  13 // See http://www.boost.org/libs/mpl for documentation.
  14
  15 // $Id$
  16 // $Date$
  17 // $Revision$
  18
  19 #include <boost/mpl/transform.hpp>
  20 #include <boost/mpl/apply.hpp>
  21 #include <boost/mpl/if.hpp>
  22 #include <boost/mpl/aux_/inserter_algorithm.hpp>
  23 #include <boost/mpl/aux_/config/forwarding.hpp>
  24
  25 namespace boost { namespace mpl {
  26
  27 namespace aux {
  28
  29 template< typename Predicate, typename T >
  30 struct replace_if_op
  31 {
  32     template< typename U > struct apply
  33 #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
  34         : if_<
  35               typename apply1<Predicate,U>::type
  36             , T
  37             , U
  38             >
  39     {
  40 #else
  41     {
  42         typedef typename if_<
  43               typename apply1<Predicate,U>::type
  44             , T
  45             , U
  46             >::type type;
  47 #endif
  48     };
  49 };
  50
  51
  52 template<
  53       typename Sequence
  54     , typename Predicate
  55     , typename T
  56     , typename Inserter
  57     >
  58 struct replace_if_impl
  59     : transform1_impl<
  60           Sequence
  61         , protect< aux::replace_if_op<Predicate,T> >
  62         , Inserter
  63         >
  64 {
  65 };
  66
  67 template<
  68       typename Sequence
  69     , typename Predicate
  70     , typename T
  71     , typename Inserter
  72     >
  73 struct reverse_replace_if_impl
  74     : reverse_transform1_impl<
  75           Sequence
  76         , protect< aux::replace_if_op<Predicate,T> >
  77         , Inserter
  78         >
  79 {
  80 };
  81
  82 } // namespace aux
  83
  84 BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(4, replace_if)
  85
  86 }}
  87
  88 #endif // BOOST_MPL_REPLACE_IF_HPP_INCLUDED