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added LvaluePropertyGraphConcept

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[SVN r9710]
This commit is contained in:
Jeremy Siek
2001-04-05 02:11:11 +00:00
parent c0227802dc
commit 3b5fdbec36
1 changed files with 18 additions and 0 deletions
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18
include/boost/graph/graph_concepts.hpp
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@@ -391,6 +391,24 @@ namespace boost {
typename property_traits<Map>::value_type pval;
};
template <class G, class X, class Property>
struct LvaluePropertyGraphConcept
{
typedef typename property_map<G, Property>::type Map;
void constraints() {
function_requires< ReadablePropertyGraphConcept<G, X, Property> >();
function_requires< Mutable_LvaluePropertyMapConcept<Map, X> >();
Map pmap = get(Property(), g);
pval = get(Property(), g, x);
put(Property(), g, x, pval);
ignore_unused_variable_warning(pmap);
}
G g;
X x;
typename property_traits<Map>::value_type pval;
};
// This needs to move out of the graph library
template <class B>
struct BufferConcept