Hi!
I have a function with the signature fn f<G>(graph: G)
and a bunch of trait annotations. Since I want to use add_node
on a local clone of graph
, I added a petgraph::data:Build
annotation to the function, too.
However, when invoking the function with a regular petgraph::Graph
reference, it fails to compile as this object does not implement Build
:
the trait `petgraph::data::Build` is not implemented for `&petgraph::graph_impl::Graph<...
This kind of makes sense, as it is not mutable, but I'd like to avoid passing it as mutable just to be able to construct a mutable clone.
Am I using it wrong? What would be the correct trait annotation in this case?
TIA!