In-place reverse!

General Usage
3

Uh?

julia> A = rand(2,2)
2×2 Matrix{Float64}:
 0.664925  0.689702
 0.987743  0.960874

julia> reverse!(A)
2×2 Matrix{Float64}:
 0.960874  0.987743
 0.689702  0.664925

julia> A
2×2 Matrix{Float64}:
 0.960874  0.987743
 0.689702  0.664925

Edit: this is Julia v1.6, probably not available in v1.5-. This is mentioned in NEWS.md for Julia v1.6.

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