Fuzzy scorematrix gethashcode

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ScoreMatrix.GetHashCode

The shape's hash.

public int GetHashCode()

Returns — a hash combining Rows and Columns.

Example — the same handle hashes the same.

using Lodestar.Fuzzy;

ScoreMatrix scores = Process.Cdist(["new york"], ["new york mets", "boston red sox"]);
ScoreMatrix sameHandle = scores;

bool agree = scores.GetHashCode() == sameHandle.GetHashCode();   // => True

Remarks — the shape alone, on purpose. Two matrices of the same shape collide, which costs a hash bucket and never a wrong answer: Equals settles it on the storage. Hashing the cells would walk the whole matrix to place it in a dictionary, which is work a caller of this type is not asking for.

Hand-rolled rather than HashCode.Combine, which netstandard2.0 does not carry and no polyfill in this repository supplies.

Applies to — net10.0, netstandard2.0.

See also — ScoreMatrix, ScoreMatrix.Equals.