[Issue 13829] std.uni.byCodePoint for strings has length

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13829

--- Comment #1 from Marc Schütz <schuetzm at gmx.net> ---
In case it wasn't clear:

For strings and wstrings, determining the actual number of code points is an
O(n) operation and should therefore not be available via length at all. The
current implementation returns the number of code units, not of code points.

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