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Subject: Re: extremely long compile time with large number of string literals
From: Artur Czajkowski (atch.cpp_at_[hidden])
Date: 2020-07-10 01:25:46


@Marcin Jaczewski <marcinjaczewski86_at_[hidden]>
I'm not talking about putting limits on compilation time. I'm talking about
introducing constraints in a form of Big O notation with regards to time
complexity that needs to be met by compiler implementer in order to conform
to the standard.

On Thu, Jul 9, 2020 at 11:34 PM Mandeep Sandhu via Std-Discussion <
std-discussion_at_[hidden]> wrote:

> >
> > Overload resolution. Try passing suffixed-string literals,
> >
> > const std::unordered_set<std::string> my_set ({"item1"s, "item2"s,
> ....});
>
> I tried creating UDL strings like you suggested (but with a space
> between the literal & s), but it doesn't compile for me.
>
> A simple program like:
> ...
> const unordered_set<string> myset ({ "a" s, "b" s, "c" s, });
> int main()
> {
> cout << "size of myset = " << myset.size() << endl;
> }
>
> Doesn't compile, I get the error:
> ...
> error: expected ‘}’ before ‘s’
> 7 | const unordered_set<string> myset ({ "a" s, "b" s, "c" s, });
>
> Maybe I'm doing it wrong (I haven't used UDLs before).
>
> Thanks.
> -mandeep
> --
> Std-Discussion mailing list
> Std-Discussion_at_[hidden]
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>

-- 
Best regards
*Artur Czajkowski*
https://marketplace.visualstudio.com/items?itemName=GitAtomic.GitAtomic


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