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Re: Should the pick semantics be changed? [message #42588 is a reply to message #42579]

Wed, 26 March 2014 02:37

Lance
Messages: 527
Registered: March 2007

Contributor

Sorry, can you demonstrate your original proposal with some code?

I mean just explain what you mean by

Quote:

well, to formalize a bit more concretely what I said, I believe return statement should at compile-time distinguish between return values local to the function which are not static, and all the return-values which remain in scope after the end of this function respectively could get into scope again (like static values or private members and such). and then based on this distinction the actual return-value should either be constructed with implicit cast to r-value or with the persistent const-l-value-reference constructor.

If I didn't get you wrong, there is really little the compiler can do, or it's already what is being done.

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[Message index]

		Should the pick semantics be changed? By: piotr5 on Tue, 04 March 2014 11:00
		Re: Should the pick semantics be changed? By: mirek on Tue, 04 March 2014 12:12
		Re: Should the pick semantics be changed? By: piotr5 on Tue, 04 March 2014 23:14
		Re: Should the pick semantics be changed? By: mirek on Wed, 05 March 2014 08:54
		Re: Should the pick semantics be changed? By: piotr5 on Wed, 05 March 2014 10:27
		Re: Should the pick semantics be changed? By: mirek on Wed, 05 March 2014 12:02
		Re: Should the pick semantics be changed? By: mirek on Fri, 07 March 2014 09:00
		Re: Should the pick semantics be changed? By: piotr5 on Fri, 07 March 2014 16:23
		Re: Should the pick semantics be changed? By: mirek on Fri, 07 March 2014 16:44
		Re: Should the pick semantics be changed? By: mirek on Sun, 09 March 2014 09:34
		Re: Should the pick semantics be changed? By: piotr5 on Sun, 09 March 2014 13:28
		Re: Should the pick semantics be changed? By: Lance on Sun, 23 March 2014 22:02
		Re: Should the pick semantics be changed? By: piotr5 on Tue, 25 March 2014 19:35
		Re: Should the pick semantics be changed? By: Lance on Wed, 26 March 2014 02:37
		Re: Should the pick semantics be changed? By: Lance on Wed, 26 March 2014 02:48
		Re: Should the pick semantics be changed? By: piotr5 on Wed, 26 March 2014 10:35
		Re: Should the pick semantics be changed? By: mirek on Wed, 26 March 2014 11:38
		Re: Should the pick semantics be changed? By: Lance on Wed, 26 March 2014 21:25
		Re: Should the pick semantics be changed? By: Lance on Wed, 26 March 2014 21:21

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