id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
9826	compress boost::property	marc.glisse@…	Jeremiah Willcock	"Hello,

looking at property_map, I noticed that boost::property is wasting space. property<tag,double> will typically have size 16 because of the no_property member. list_edge<Vertex,no_property> will also be too long for the same reason. A proper use of the empty base optimization (possibly through tuple or compressed_pair) should help with this. Partial specializations for no_property may be a simpler alternative.

Graphs can grow large, and it seems quite important to avoid wasting memory."	Bugs	new	To Be Determined	graph	Boost 1.55.0	Problem