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Re: [Patch/RFC] libstdc++/19495
Benjamin Kosnik wrote:
Paolo, I think this is reasonable.Thanks.
100% agreed. Summarizing, we have at least two open issues:
For so_7, we really need to come up with some changes for std::string.
For 4.1, or when the ABI can change, anyway, we can consider changing
basic_string to make use of memory aligned only as CharT requires, not
more, but, for the time being, the below seems to me a viable approach...
For one, we have to have link-time differences for various Reps. It's
the only way we are going to be able to do shared allocation strings.
1- Avoiding _Rep in static memory, probably we can neatly obtain that
via a "short-string optimization" type solution.
2- Various alignment issues (the last one manifest itself slightly
differently than the the very old one).
In order to fix 2-, basic_string must be profoundly redesigned, as soon
as 4.0 branches (and the 4.0 version of type_traits is more or less
final) I really want to seriously start on this big project. If we are
lucky, the new design will not be blocked too seriously by