In addition to my last question, I wonder what are the type
requirements for the bundled properties. Because I've had quite a few
compiler errors, and as far as I can tell from these errors, it seems
to me that a type used for bundled properties must be (at least)
Assignable, and (that's even stranger for me) Default Constructible,
since I had complains about missing default constructors and member
references (which are not assignable).


Can someone confirms this is true? If yes, this should also be
documented somewhere...


Jean-Noël Rivasseau


ps: I have almost no idea of how a graph is stored (internally) when
using the BGL. But the errors seem to be linked with the type of
containers chosen for the vertex and out-edges list (in an
adjacency_list class). For example I had these errors when using vecS,
but if I switch to mapS, I have only the Default Constructible error
(not the Assignable requirement, strange...)


So the bundled properties are also stored depending on the containers
you choose?


(as for my previous question, I realised after all that, that it's
maybe not a good idea to have references as bundled properties, as
they seem to be stored in containers, and having references in
containers of the STL is a bad thing (because, once again, they are
not Assignable). Any comments?)



<excerpt>Hi.



<excerpt><excerpt>Any help would be appreciated, and I still think the
documentation should mention how to get the type of the bundled
properties.

</excerpt>

You're absolutely correct. I've just added the aforementioned traits
with some documentation for them (within the description of bundled
properties).

</excerpt>

I guess all of this is in the CVS, of course... I wondered also if
there was a way to download all of the boost documentation (HTML
format) for offline browsing, rather than going to the web site every
time (maybe this is intentionalk though). I mean, a way different than
downloading the CVS documentation.


I have yet a new question: is it possible to have, as a bundled
property, references to objects and not just the object themselves ?


IE, 


<fixed>	<color><param>7671,0F0A,504B</param>typedef</color>
adjacency_list<<mapS, vecS, undirectedS, myClass > Graph;


works, but I can't manage to have:


	<color><param>7670,0F09,504A</param>typedef</color>
adjacency_list<<mapS, vecS, undirectedS, myClass &> Graph;


(A pointer, though, is ok as I have noted on one of my earlier mails).


I have noted, though, that function such as
</fixed><fontfamily><param>Courier</param><x-tad-bigger>add_vertex(const VertexProperties& p,
adjacency_list& g) do take a reference to a VertexProperties. So
should I assume that if I construct my graph in this way (via use of
add_vertex, etc...) my bundled properties will just be references, ie,
no copy construction will occur ( and after running my graph
algorithms, the modifications on the bundled properties will still be
accessible)?


Jean-Noël

</x-tad-bigger></fontfamily><fixed>



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</excerpt>