Bug 6254 – Problem with associative array with array of array as keys

This program: static immutable(char[][]) toConstMatrix(char[][] M) { immutable(char[])[] result; foreach (row; M) result ~= row.idup; return result; } void main() { char[][] M = [" ".dup, " ".dup, " ".dup, " ".dup, " ".dup]; auto a = toConstMatrix(M); auto b = toConstMatrix(M); bool[char[][]] foo; foo[a] = true; assert(a == b, "a != b"); assert(a in foo, "a not in foo"); assert(b in foo, "b not in foo"); } DMD 2.053 gives: [email protected](15): b not in foo But I think the hash of a dynamic array of a dynamic array has to be computed on just the contents (and lengths) of the arrays.

I'll mark this (earlier) report as duplicate as later one contains more info. *** This issue has been marked as a duplicate of issue 10380 ***