I am wondering why we could not have a in-place map! so that the destination and the source are the same: julia> a = [1, 2, 3]; julia> map!(-, a) 3-element Vector{Int64}: -1 -2 -3 I am using this pattern a lot and really hope we can have one. I suppose I am not the only one . What might block t…

See Proposal to use map!(f,A) for in place modification of collections · Issue #31677 · JuliaLang/julia · GitHub .

Why there is no in-place `map!` on arrays?

singularitti September 29, 2022, 1:56am 9

Tamas_Papp suggested mapinto!. I think it is better.

2 Likes

Topic		Replies	Views
In-place map General Usage	3	1441	September 29, 2020
Unexpected map! behaviour New to Julia	2	734	June 4, 2019
Static arrays and type stability under map Performance question	8	926	July 20, 2018
Inconsistent behavior of map General Usage bug , debug	1	447	September 9, 2018
Map! - but it didn't map! New to Julia	3	2191	March 25, 2020