RFC: JEP JDK-8208089: Implement C++14 Language Features

Kim Barrett kim.barrett at oracle.com
Mon Oct 8 19:34:04 UTC 2018

> On Oct 6, 2018, at 11:07 AM, Aleksei Voitylov <aleksei.voitylov at bell-sw.com> wrote:
> Kim,
> from an ARM port perspective, the stable GCC version is 4.9. The port compiles with stock GCC 7.3 but a lot of testing is required before moving to GCC 7.3. I agree on the overall direction and we'll commit resources to testing it further, but from an ARM port perspective it may happen JDK 12 is a little too optimistic.
> GCC x86 is a lot more stable than for ARM32 and AARCH64.

It seems to me that JDK 11 being an LTS might provide an answer to this.

JDK 12 support for C++11/14 on arm32/aarch64 might be somewhat
"experimental" in that it might require a more recent compiler version
that hasn't received as much testing as was done for JDK 11.

Similarly, the AIX/ppc platform might not be supported after JDK 11
until an improved version of the relevant compiler becomes available.

I don't know if such an approach is acceptable to the community, nor
do I know how such a decision might be made.  But I think it would be
unfortunate if such issues blocked progress in this area.

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