https://issues.dlang.org/show_bug.cgi?id=5714

Dmitry Olshansky <dmitry.olsh@gmail.com> changed:

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https://issues.dlang.org/show_bug.cgi?id=5714

Walter Bright <bugzilla@digitalmars.com> changed:

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https://issues.dlang.org/show_bug.cgi?id=5714

Iain Buclaw <ibuclaw@gdcproject.org> changed:

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https://issues.dlang.org/show_bug.cgi?id=5714

Nick Treleaven <nick@geany.org> changed:

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--- Comment #4 from Nick Treleaven <nick@geany.org> ---
(In reply to Andrej Mitrovic from comment #1)
> And it also limits the number of cases to 256 (for optimization purposes?).
> 
> So a final switch would only work on byte-types.

See issue 15279 which seems to be an implementation issue rather than a design decision (the pull comment suggests lowering case range statements to an if/else instead).

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https://issues.dlang.org/show_bug.cgi?id=5714

Bolpat <qs.il.paperinik@gmail.com> changed:

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--- Comment #5 from Bolpat <qs.il.paperinik@gmail.com> ---
The limitation of the number of `case` labels is entirely orthogonal to allowing case ranges for `final switch`, as the ranges are just syntactic sugar for writing them out.

This errors:
---
void main()
{
    ubyte u;
    final switch (u)
    {
        case   0: .. case 100: break;
        case 101: .. case 255: break;
    }
}
---

This is fine:
---
void main() {
    ubyte u;
    Lswitch: final switch (u)
    {
        static foreach (i; 0 .. 100 + 1)
        {
            case i: break Lswitch;
        }
        static foreach (i; 101 .. 255 + 1)
        {
            case i: break Lswitch;
        }
    }
}
---

The error makes no sense. It might have made sense in 2011, but in 2024, it just requires some boilerplate to work.

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https://issues.dlang.org/show_bug.cgi?id=5714

--- Comment #6 from dlangBugzillaToGithub <robert.schadek@posteo.de> ---
THIS ISSUE HAS BEEN MOVED TO GITHUB

https://github.com/dlang/dmd/issues/18334

DO NOT COMMENT HERE ANYMORE, NOBODY WILL SEE IT, THIS ISSUE HAS BEEN MOVED TO GITHUB

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