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Subject: Re: [Boost-users] [graph] Getting bundled-properties types
From: Andrew Sutton (andrew.n.sutton_at_[hidden])
Date: 2009-03-15 19:34:23

> it should always be possible to use the expression g[v].min, but if I use
> the expression g[v] I don't know the type of the object it returns.
> If there isn't any way to find out that, I'll have no other option than
> choosing between your totally-generic solution or
> to be still more restrictive and impose using my default implementation of
> the bundled properties the graph must have.

I don't believe that there's a reliable way to access bundled property
types. You can probably use the vertex_property_type and one metafunction or
another to extract the bundled types, but I don't know the exact process for
this. This only applies to graphs that actually define that type, though.

Expecting a function isn't really "totally generic". It just hides the
differences that are causing your problem.


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