question about HOWTO use std::set in non-trival way...

Jeffrey Holle
Fri Sep 10 23:34:00 GMT 2004

I'm using gcc v3.4.1.

I've got an application that has a need for the following set container:

struct ltSubgraph : public binary_function<Edge,Edge,bool>
   ltSubgraph(const SubGraphT& subgraph);

typedef set<Edge,ltSubgraph> Edges;

The compare function requires that it has a SubGraphT object to 
implement its operator() method.

The question is how do I instanciate this container?

Just doing:
   Edges edges;

Produces errors for want of a ltSubgraph default constructor...

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