masakihori

BidirectionalCollection は逆順に数え上げられるCollectionなのでここに生やせば問題ないです

そもそもSequenceにsuffixがあるんですよ https://developer.apple.com/documentation/swift/sequence/3128822-suffix

7:13 AM

https://github.com/apple/swift/blob/390cebe88ba01e11f9584491ea4735a51697da1c/stdlib/public/core/Sequence.swift#L922

apple/swift

The Swift Programming Language. Contribute to apple/swift development by creating an account on GitHub.

7:13 AM

普通に全要素吸い出してる