hash for ValEdge and ValDiEdge

Author: simonschoelly

src/SimpleValueGraphs.jl

@@ -22,7 +22,7 @@ import LightGraphs:
     adjacency_matrix
 
 import Base: show, iterate, length,
-    getindex, size, ==
+    getindex, size, ==, hash
 
 import LinearAlgebra
 import LinearAlgebra:
@@ -97,6 +97,7 @@ export
     show,
     zero,
     ==,
+    hash,
 
     # overridden methods from LinearAlgebra
     ishermitian,

src/valueedge.jl

@@ -180,11 +180,13 @@ LG.is_directed(e::AbstractValEdge) = is_directed(typeof(e))
 #  ------------------------------------------------------
 
 ==(lhs::ValEdge, rhs::ValEdge) =
-    lhs.src == rhs.src && lhs.dst == lhs.dst && lhs.values == rhs.values
+    lhs.src == rhs.src && lhs.dst == rhs.dst && lhs.values == rhs.values
 
 ==(lhs::ValDiEdge, rhs::ValDiEdge) =
-    lhs.src == rhs.src && lhs.dst == lhs.dst && lhs.values == rhs.values
+    lhs.src == rhs.src && lhs.dst == rhs.dst && lhs.values == rhs.values
 
+hash(e::ValEdge, h::UInt) = hash(e.src, hash(e.dst, hash(e.values, h)))
+hash(e::ValDiEdge, h::UInt) = hash(e.src, hash(e.dst, hash(e.values, h)))
 
 # ======================================================
 # show