[RFC] libstdc++/8347

[B. Kosnik]

>#include <vector>
>#include <string>
>
>int main(int argc,char** argv)
>{
>  std::vector<char> empty;
>  std::string empty2(empty.begin(),empty.end());
>}

vs

>#include <vector>
>#include <string>
>
>int main(int argc,char** argv)
>{
>  std::string empty;
>  std::string empty2(empty.begin(),empty.end());
>}

This was a case that was not considered when the _S_construct changes to
throw on null were added. I agree that something consistent should be
done here.

>Which one, in case?

That's a good question....... right now I'd lean towards removing the
_S_construct bits. Thoughts?

-benjamin