epoc32/include/stdapis/boost/mpl/aux_/push_back_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_BACK_IMPL_HPP_INCLUDED
     3 #define BOOST_MPL_AUX_PUSH_BACK_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_back_impl.hpp,v $
    14 // $Date: 2004/09/02 15:40:44 $
    15 // $Revision: 1.4 $
    16 
    17 #include <boost/mpl/push_back_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_back' implementation below
    27 template< typename Tag >
    28 struct push_back_impl
    29 {
    30     template< typename Sequence, typename T > struct apply {};
    31 };
    32 
    33 template< typename Tag >
    34 struct has_push_back_impl
    35 {
    36     template< typename Seq > struct apply
    37 #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
    38         : aux::has_type< push_back<Seq,int> >
    39     {
    40 #else
    41     {
    42         typedef aux::has_type< push_back<Seq,int> > type;
    43         BOOST_STATIC_CONSTANT(bool, value = 
    44               (aux::has_type< push_back<Seq,int> >::value)
    45             );
    46 #endif
    47     };
    48 };
    49 
    50 BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2, push_back_impl)
    51 BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1, has_push_back_impl)
    52 
    53 }}
    54 
    55 #endif // BOOST_MPL_AUX_PUSH_BACK_IMPL_HPP_INCLUDED