From: Benoit (benoit.casoetto_at_[hidden])
Date: 2006-09-28 05:57:34
Hello Loïc
I might be wrong, but since vertex descriptors are usually integers
(and therefore its value type can be written to a stream), using
identity_property_map as your vertex_id property map might do the
trick.
See http://www.boost.org/libs/property_map/identity_property_map.html
for more information.
Hope this helps !
Benoît