Le mardi 08 août 2023 à 20:26 +0200, David Kastrup a écrit :
> Given that ly:music-deep-copy is written in C++, I doubt better
> efficiency.



Well, most of the case it probably won't matter, but I could imagine using it to
turn a quadratic algorithm into a linear one in advanced cases.

(Or just to avoid excessive Scheme allocations; we both know that LilyPond
spends quite a lot of time in GC.)

But yes, in the current code base, there is no use of this efficiency bonus.

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