template <typename KeyType, typename ValueType> class ref_property_mapThis property map wraps a reference to some particular object, and returns that reference whenever a key object is input.
boost/property_map/property_map.hpp
| Type | Description |
|---|---|
| boost::property_traits<ref_property_map>::value_type | This type is the ValueType with which the template instantiated. |
| boost::property_traits<ref_property_map>::key_type | This type is the KeyType with which the template instantiated. |
| boost::property_traits<ref_property_map>::category | This type is boost::lvalue_property_map_tag. |
| Member | Description |
|---|---|
| ref_property_map(ValueType& v) | The constructor for ref_property_map is provided the reference that the property map will return when queried. |
| ref_property_map(const ref_property_map& x) | Copy constructor. |
| ValueType& operator[](KeyType const&) const | Returns the contained reference. |