This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [Patch] include <bits/functexcept.h> in <variant>


On Fri, Oct 14, 2016 at 2:31 AM, Jonathan Wakely wrote:
> Yes, that's right. OK for trunk, thanks.

Committed.

> By the way, I'm intending to add __throw_bad_variant_access_fmt to
> bits/functexcept.h and make it use __snprintf_lite() so that we can
> do:
>
>       __throw_bad_variant_access_fmt("cannot access alternative %zu "
>           "of std::variant because index() is %zu", _Np, __v.index());
>
> (Thanks to Nico Josuttis for the suggestion).
>

It's great to be able to print runtime indices in an exception
message! I could have used this for std::regex exceptions too.


-- 
Regards,
Tim Shen


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]