Graph.subgraph

Creates a subgraph using the given roots. This is done by traversing the graph and only adding the vertices and edges that we come across.

class Graph(A, B, EdgeDataAB = size_t, EdgeDataBA = size_t)

subgraph

(

const(A[]) rootsA

const(B[]) rootsB

)

if (

!is(A == B)

)

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