- graph? Gprocedure
Predicate for testing whether or not a value is a graph type. This does NOT test that an object is of type <class <graph>>, but whether something is a graph at all. Therefore, this returns #t iff the type of G is <multidigraph>, <multigraph>, <digraph>, <graph>, or some descendent thereof, else returns #f.
- G
- the object to test