Certainly depends on the language and where in the standard library you are, though you're completely right to always be cognizant that it's all been taken thro

Certainly depends on the language and where in the standard library you are, though you're completely right to always be cognizant that it's all been taken through battles in production at scale and has been optimized accordingly. One could also argue that that kind of code might be idiomatic for that kind of problem (an example of general, portable, and efficient), and a good guideline on how that might be done, though it might not be a super satisfying argument depending on how conservative your definition of "idiomatic" is.