Defining the hash of an object as the sum of hashes of its members

Posted by Space_C0wb0y on Stack Overflow See other posts from Stack Overflow or by Space_C0wb0y
Published on 2010-06-11T10:04:55Z Indexed on 2010/06/11 10:22 UTC
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hash

I have a class that represents undirected edges in a graph. Every edge has two members vertex1 and vertex2 representing the vertices it connects. The problem is, that an edge can be specified two directions. My idea was now to define the hash of an edge as the sum of the hashes of its vertices. This way, the direction plays no role anymore, the hash would be the same. Are there any pitfalls with that?

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