That’d be awful. This means people will start putting the function name as a prefix, like func1_outer, in order to avoid naming collisions. (Doesn’t work well for overloaded functions.)

Even if you have managed to keep all labels separate inside a single .cpp file (not prefixing with the function name) it might work for a while because it is a single translation unit. Then, someone decides to switch to jumbo/unity builds and the code breaks.

I prefer something that is local to the scope of the loop.

> On 7. Jan 2025, at 09:57, Simon Kraemer <sikraemer_at_[hidden]> wrote:
>
> But using labels will cause problems with this:
>
> func1()
> {
> outer: for (…)
> {
> inner: for(…)
> {
> break outer;
> }
> }
> }
>
> func2()
> {
> outer: for (…) // label already defined
> {
> inner: for(…) // label already defined
> {
> break outer;
> }
> }
> }
>
> Am Di., 7. Jan. 2025 um 09:44 Uhr schrieb Simon Schröder via Std-Proposals <std-proposals_at_[hidden] <mailto:std-proposals_at_[hidden]>>:
> On 7. Jan 2025, at 07:44, Tiago Freire via Std-Proposals <std-proposals_at_[hidden] <mailto:std-proposals_at_[hidden]>> wrote:
>>
>> It's because we don't want things that you don't need from outstaying their welcome. A label is a thing that outstays long after they are no longer welcome.
>> It's probably fine, but do I need to keep constantly looking at my shoulder to see if that label is going to stab me in the back?
>> Let me forget things that I no longer need, and keep things clean.
>
> I agree with this. Naming things is hard. Most of the time I would expect to see something like this:
> outer: for (…)
> {
> inner: for(…)
> {
> break outer;
> }
> }
> I just know that I want to break the outer loop. If I had a real name for that loop it could most likely be a function. I’m not sure we know how to name loops.
>
> Because ‘outer’ and ‘inner’ are the most obvious names it would be nice if I can reuse those names for another loop in the same function (I personally tend to ignore Clean Code when I have an algorithm that I just want to write down top to bottom in a single function). If these are labels I cannot have 2 loops both named ‘outer’ in the same function.
>
> Somebody might argue instead that this would be the reason to use labels because they cannot be duplicate. It would avoid confusion if two loops have the same name inside the same function.
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