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adding fusion docs and tests

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[SVN r34920]
This commit is contained in:
Joel de Guzman
2006-08-22 15:57:13 +00:00
parent 75b9d13a88
commit c31253d8c1
351 changed files with 42280 additions and 0 deletions
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65
example/extension/detail/at_impl.hpp Normal file
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/*=============================================================================
Copyright (c) 2001-2006 Joel de Guzman
Copyright (c) 2005-2006 Dan Marsden
Use, modification and distribution is subject to the Boost Software
License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
http://www.boost.org/LICENSE_1_0.txt)
==============================================================================*/
#if !defined(BOOST_FUSION_AT_IMPL_20060223_2017)
#define BOOST_FUSION_AT_IMPL_20060223_2017
#include <string>
#include <boost/mpl/if.hpp>
#include <boost/mpl/int.hpp>
#include <boost/type_traits/is_const.hpp>
namespace boost { namespace fusion {
struct example_sequence_tag;
namespace extension
{
template<typename Tag>
struct at_impl;
template<>
struct at_impl<example_sequence_tag>
{
template<typename Sequence, typename Key>
struct apply;
template<typename Sequence>
struct apply<Sequence, mpl::int_<0> >
{
typedef typename mpl::if_<
is_const<Sequence>,
std::string const&,
std::string&>::type type;
static type
call(Sequence& seq)
{
return seq.name;
};
};
template<typename Sequence>
struct apply<Sequence, mpl::int_<1> >
{
typedef typename mpl::if_<
is_const<Sequence>,
int const&,
int&>::type type;
static type
call(Sequence& seq)
{
return seq.age;
};
};
};
}
}}
#endif