Given a set S = Set{Vector{Int}}(s_1,…,s_n) and a vector v such that v == s_k but not v===s_k, how do I return the original object s_k from S?

Looking at the source, Set uses Dicts under the hood: https://github.com/JuliaLang/julia/blob/7e6ef91c9d0bf89de7b45a46aaacf4f644986b69/base/set.jl#L4 so you can use s_k = getkey(S.dict, v, Nothing)

Given S = Set{Vector{Int}}, how do I get a reference to the original object in S?

General Usage

rrhiemstra January 11, 2020, 5:54pm 9

@stillyslalom, great catch! That solves it.

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Given S = Set{Vector{Int}}, how do I get a reference to the original object in S?

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