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Trying to fix choose_pmap on more compilers

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[SVN r77650]
This commit is contained in:
Jeremiah Willcock
2012-03-30 17:50:17 +00:00
parent eaebaf87a6
commit d70d07b0ba
1 changed files with 25 additions and 20 deletions
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45
include/boost/graph/named_function_params.hpp
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@@ -272,40 +272,45 @@ BOOST_BGL_DECLARE_NAMED_PARAMS
property_map<Graph, Tag> >,
boost::mpl::identity<Param> > {};
// Parameters are (NotFound, GraphIsConst, Graph, Param, Tag)
template <typename Param, typename Graph, typename PropertyTag>
typename property_map<Graph, PropertyTag>::const_type
choose_impl(boost::mpl::true_, boost::mpl::true_, const Graph& g, const Param&, PropertyTag tag) {
return get(tag, g);
}
// Parameters of f are (GraphIsConst, Graph, Param, Tag)
template <bool Found> struct choose_impl_helper;
template <typename Param, typename Graph, typename PropertyTag>
typename property_map<Graph, PropertyTag>::type
choose_impl(boost::mpl::true_, boost::mpl::false_, Graph& g, const Param&, PropertyTag tag) {
return get(tag, g);
}
template <> struct choose_impl_helper<false> {
template <typename Param, typename Graph, typename PropertyTag>
static typename property_map<Graph, PropertyTag>::const_type
f(boost::mpl::true_, const Graph& g, const Param&, PropertyTag tag) {
return get(tag, g);
}
template <typename GraphIsConst, typename Param, typename Graph, typename PropertyTag>
Param
choose_impl(boost::mpl::false_, GraphIsConst, const Graph&, const Param& p, PropertyTag) {
return p;
}
template <typename Param, typename Graph, typename PropertyTag>
static typename property_map<Graph, PropertyTag>::type
f(boost::mpl::false_, Graph& g, const Param&, PropertyTag tag) {
return get(tag, g);
}
};
template <> struct choose_impl_helper<true> {
template <typename GraphIsConst, typename Param, typename Graph, typename PropertyTag>
static Param f(GraphIsConst, const Graph&, const Param& p, PropertyTag) {
return p;
}
};
}
template <typename Param, typename Graph, typename PropertyTag>
typename detail::choose_impl_result<boost::mpl::true_, Graph, Param, PropertyTag>::type
choose_const_pmap(const Param& p, const Graph& g, PropertyTag tag)
{
return detail::choose_impl(boost::mpl::bool_<boost::is_same<Param, param_not_found>::value>(),
boost::mpl::true_(), g, p, tag);
return detail::choose_impl_helper<!boost::is_same<Param, param_not_found>::value>
::f(boost::mpl::true_(), g, p, tag);
}
template <typename Param, typename Graph, typename PropertyTag>
typename detail::choose_impl_result<boost::mpl::false_, Graph, Param, PropertyTag>::type
choose_pmap(const Param& p, Graph& g, PropertyTag tag)
{
return detail::choose_impl(boost::mpl::bool_<boost::is_same<Param, param_not_found>::value>(),
boost::mpl::false_(), g, p, tag);
return detail::choose_impl_helper<!boost::is_same<Param, param_not_found>::value>
::f(boost::mpl::false_(), g, p, tag);
}
namespace detail {