On Tuesday, 11 January 2022 at 17:55:28 UTC, H. S. Teoh wrote:
Generally, I'd advise not conflating your containers with
ranges over your containers: I'd make .opSlice return a
traditional D slice (i.e., const(char)[]) instead of a
FixedString, and just require writing `[]` when you need to
iterate over the string as a range:
FixedString!64 mystr;
foreach (ch; mystr[]) { // <-- iterates over const(char)[]
...
}
This way, no redundant copying of data is done during iteration.
It already does this. In D2, `[]` is handled by a zero-argument
`opIndex` overload, not by `opSlice`. [1] FixedString has such an
overload [2], and it does, in fact, return a slice.
[1] https://dlang.org/spec/operatoroverloading.html#slice
[2]
https://github.com/Moth-Tolias/fixedstring/blob/v1.0.0/source/fixedstring.d#L105
