CM.make "../cm/Graphs.cm";
structure TestMaxFlow =
struct
val G as Graph.GRAPH g = DirectedGraph.graph("foo",(),10) :
(string,int,unit) Graph.graph
structure MaxFlow = MaxFlow(struct type elem = int open Int
val zero = 0
val == : int * int -> bool = op =
end)
val _ = app (#add_node g)
[(0,"s"),
(1,"v1"),
(2,"v2"),
(3,"v3"),
(4,"v4"),
(5,"t")
]
val _ = app (#add_edge g)
[(0,1,16),
(0,2,13),
(1,2,10),
(2,1,4),
(1,3,12),
(2,4,14),
(3,2,9),
(4,3,7),
(3,5,20),
(4,5,4)
]
fun flows((i,j,c),f) =
print(Int.toString i ^ " -> " ^ Int.toString j ^ " flow="^Int.toString f^
" cap="^Int.toString c^"\n")
fun cap(i,j,c) = c
fun test() =
let val flow = MaxFlow.max_flow{graph=G,s=0,t=5,capacity=cap,flows=flows}
in if flow <> 23 then raise Match else flow
end
end