epoc32/include/stdapis/boost/mpl/aux_/push_front_impl.hpp
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:27:01 +0100
branchSymbian2
changeset 3 e1b950c65cb4
permissions -rw-r--r--
Attempt to represent the S^2->S^3 header reorganisation as a series of "hg rename" operations
     1 
     2 #ifndef BOOST_MPL_AUX_PUSH_FRONT_IMPL_HPP_INCLUDED
     3 #define BOOST_MPL_AUX_PUSH_FRONT_IMPL_HPP_INCLUDED
     4 
     5 // Copyright Aleksey Gurtovoy 2000-2004
     6 //
     7 // Distributed under the Boost Software License, Version 1.0. 
     8 // (See accompanying file LICENSE_1_0.txt or copy at 
     9 // http://www.boost.org/LICENSE_1_0.txt)
    10 //
    11 // See http://www.boost.org/libs/mpl for documentation.
    12 
    13 // $Source: /cvsroot/boost/boost/boost/mpl/aux_/push_front_impl.hpp,v $
    14 // $Date: 2004/09/02 15:40:44 $
    15 // $Revision: 1.4 $
    16 
    17 #include <boost/mpl/push_front_fwd.hpp>
    18 #include <boost/mpl/aux_/has_type.hpp>
    19 #include <boost/mpl/aux_/traits_lambda_spec.hpp>
    20 #include <boost/mpl/aux_/config/forwarding.hpp>
    21 #include <boost/mpl/aux_/config/static_constant.hpp>
    22 
    23 namespace boost { namespace mpl {
    24 
    25 // agurt 05/feb/04: no default implementation; the stub definition is needed 
    26 // to enable the default 'has_push_front' implementation below
    27 
    28 template< typename Tag >
    29 struct push_front_impl
    30 {
    31     template< typename Sequence, typename T > struct apply {};
    32 };
    33 
    34 template< typename Tag >
    35 struct has_push_front_impl
    36 {
    37     template< typename Seq > struct apply
    38 #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
    39         : aux::has_type< push_front<Seq,int> >
    40     {
    41 #else
    42     {
    43         typedef aux::has_type< push_front<Seq,int> > type;
    44         BOOST_STATIC_CONSTANT(bool, value = 
    45               (aux::has_type< push_front<Seq,int> >::value)
    46             );
    47 #endif
    48     };
    49 };
    50 
    51 BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2, push_front_impl)
    52 BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1, has_push_front_impl)
    53 
    54 }}
    55 
    56 #endif // BOOST_MPL_AUX_PUSH_FRONT_IMPL_HPP_INCLUDED