Re: x3 semantic action and attribute transformation

On 08-03-17 10:35, Olaf Peter wrote:
> BTW, why the syntax :
>     auto const integer_def = integer %=
> is there a better one?

Yes, use the third argument to the rule:

   19     typedef x3::rule<struct integer_class, uint, true>
integer_type;                                                                                               


I think your sample is a bit complicated. I'd suggest something like:
http://coliru.stacked-crooked.com/a/df8986cf07f77146

You could do the overflow check by checking each iteration in the loop
makes `r` bigger. If it wraps around there was an overflow.

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