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From: Jonathan Lamothe <jonathan@jlamothe.net>
Newsgroups: comp.lang.c++
Subject: Re: Move semantics with literals
Date: Tue, 14 Apr 2026 11:01:22 -0400
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boltar@caprica.universe writes:

> To my chagrin I got caught out by this trick question in an interview:
>
> int func(int &&a)
> {
>         return a * 2;
> }
>
>
> :
>         int b = func(123);
> :
>
> Where the question was "what would happen". I assumed it wouldn't compile
> being a reference to a literal but it does. So I'm just wondering why on
> earth and when would you ever do the above? Is there some wierd use case?

The only use case I can see is tricky interview questions.  ;)

-- 
Regards,
Jonathan Lamothe
https://jlamothe.net