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Merged r79227 from trunk, hopefully fixing all VC++ Boost.Graph Graphviz test issues

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[SVN r79771]
This commit is contained in:
Jeremiah Willcock
2012-07-27 18:15:55 +00:00
parent ba9155f89c
commit 1cdce524a2
1 changed files with 13 additions and 3 deletions
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16
include/boost/pending/property.hpp
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@@ -8,6 +8,7 @@
#include <boost/mpl/bool.hpp>
#include <boost/mpl/if.hpp>
#include <boost/mpl/has_xxx.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/type_traits.hpp>
@@ -29,10 +30,19 @@ namespace boost {
};
// Kinds of properties
namespace graph_introspect_detail {
BOOST_MPL_HAS_XXX_TRAIT_DEF(kind)
template <typename T, bool Cond> struct get_kind {typedef void type;};
template <typename T> struct get_kind<T, true> {typedef typename T::kind type;};
}
// Having a default is to make this trait work for any type, not just valid
// properties, to work around VC++ <= 10 bugs related to SFINAE in
// compressed_sparse_row_graph's get functions and similar
template <class PropertyTag>
struct property_kind {
typedef typename PropertyTag::kind type;
};
struct property_kind:
graph_introspect_detail::get_kind<PropertyTag, graph_introspect_detail::has_kind<PropertyTag>::value>
{};
// Some standard properties defined independently of Boost.Graph:
enum vertex_all_t {vertex_all};