Just FYI, you're replying to digest emails.

Jeremy

On Wed, May 14, 2025 at 12:42 PM Tymi via Std-Proposals <
std-proposals_at_[hidden]> wrote:

> Yeah. I like how C# handles it for instance. I think P2688 already
> covers it anyway
>
> On 14.05.2025 14:00, std-proposals-request_at_[hidden] wrote:
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> > Today's Topics:
> >
> > 1. Re: switch expression/matching switch expression (Richard Hodges)
> > 2. Re: switch expression/matching switch expression (Andrey Semashev)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Wed, 14 May 2025 11:29:26 +0200
> > From: Richard Hodges <hodges.r_at_[hidden]>
> > To: std-proposals_at_[hidden]
> > Subject: Re: [std-proposals] switch expression/matching switch
> > expression
> > Message-ID:
> > <CALvx3hY2R5Cq31ZpfvjMiK7sDcKUOQ06=
> jXPLRrLFJ7y0ptW-g_at_[hidden]>
> > Content-Type: text/plain; charset="utf-8"
> >
> > <sigh> C++ used to be a simple, elegant language?
> >
> > On Wed, 14 May 2025 at 08:44, Sebastian Wittmeier via Std-Proposals <
> > std-proposals_at_[hidden]> wrote:
> >
> >> Also have a look at do-expressions:
> >>
> >> https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2025/p2806r3.html
> >>
> >>
> >> int purr = do {
> >> switch(meow)
> >> {
> >> case 5: do_return 123;
> >> case 123: do_return 321;
> >> default: throw nullptr;
> >> };
> >> };
> >>
> >>
> >>
> >>
> >>
> >> They can (if accepted) also be combined with pattern-matching:
> >>
> >>
> >> int purr = meow match {
> >> 5 => do { do_return 123; };
> >> 123 => do { do_return 321; };
> >> _ => do { throw nullptr; };
> >> };
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> -----Urspr?ngliche Nachricht-----
> >> *Von:* Tymi via Std-Proposals <std-proposals_at_[hidden]>
> >> *Gesendet:* Mi 14.05.2025 07:05
> >> *Betreff:* [std-proposals] switch expression/matching switch expression
> >> *An:* std-proposals_at_[hidden];
> >> *CC:* Tymi <tymi.cpp_at_[hidden]>;
> >> A matching switch expression could be useful and could get optimised
> into
> >> a jump table
> >> ```cpp
> >> int meow = 5;
> >> int purr = switch(meow)
> >> {
> >> case 5: 123;
> >> case 123: 321;
> >> default: throw nullptr;
> >> };```
> >> Whatever the syntax would be, this is just an example and it can
> >> definitely improve
> >>
> >> Tymi.
> >>
> >> --
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> >> Std-Proposals_at_[hidden]
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> >>
> >> --
> >> Std-Proposals mailing list
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> >>
> > -------------- next part --------------
> > HTML attachment scrubbed and removed
> >
> > ------------------------------
> >
> > Message: 2
> > Date: Wed, 14 May 2025 12:40:28 +0300
> > From: Andrey Semashev <andrey.semashev_at_[hidden]>
> > To: std-proposals_at_[hidden]
> > Subject: Re: [std-proposals] switch expression/matching switch
> > expression
> > Message-ID: <82f408af-3817-4b6c-b159-578cd3e3d611_at_[hidden]>
> > Content-Type: text/plain; charset=UTF-8
> >
> > On 14 May 2025 08:05, Tymi via Std-Proposals wrote:
> >> A matching switch expression could be useful and could get optimised
> >> into a jump table?
> >> ```cpp
> >> int meow = 5;
> >> int purr = switch(meow)
> >> {
> >> ? ? ?case 5: 123;
> >> ? ? ?case 123: 321;
> >> ? ? ?default: throw nullptr;
> >> };```
> >> Whatever the syntax would be, this is just an example and it can
> >> definitely improve?
> > How would it be better than a usual switch/case?
> >
> >
> >
> > ------------------------------
> >
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> > ------------------------------
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> > End of Std-Proposals Digest, Vol 74, Issue 27
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