Re: [boost] [WG21 mailing] N4453 Resumable expressions

Subject: Re: [boost] [WG21 mailing] N4453 Resumable expressions
From: Robert Ramey (ramey_at_[hidden])
Date: 2015-10-14 23:42:49

On 10/13/15 12:32 PM, Vinícius dos Santos Oliveira wrote:
> 2015-04-15 10:27 GMT-03:00 Niall Douglas <s_sourceforge_at_[hidden]>:
>
>> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4453.pdf
>
>
> revision 1 (p0114r0) is available:
> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0114r0.pdf
>
>
I looked at this briefly and found it intriguing.  But I have a couple 
of questions.

Suppose I use something like Boost.Coroutine and declare the function 
which calls it as constexpr.

Now this means that the constexpr stack is implemented at compile time 
and not at all at runtime.  So how is not a "stackless" co-routine?  How 
is it different than this proposal.  Given this, why is this proposal 
even necessary?

Robert Ramey