[cfe-dev] Setting default dialect to C++11

[Robinson, Paul via cfe-dev]

> Richard Smith asked:
>> Would raising the language standard to C++14 cause problems for PS4
>> or MSVC? Is the constraint there "at least C++11" (because, say, the
>> system headers are written in C++11) or "exactly C++11" (and if so,
>> why?)?
>
> A default dialect for a particular platform is not solely dependent on
> the toolchain; the platform must support the appropriate standard
> headers and libraries.  I have not investigated whether we have (or
> plan to have) what's needed for 14 or 17, although I can ask.  (Seems
> to me I've done this before but I can't find a record of it.)  Note
> that we do not use either libcxx or libstdc++.
> --paulr

My management is not opposed to raising the default to C++14 in 5.0.
Obviously we'll want to crank up our internal testing, and make sure
we have the new library bits in place, but we have time to do that.
Thanks,
--paulr