Re: C and C++ standard required by EPICS 7 Base and modules?

[Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov>]

On 11/28/23 21:19, J. Lewis Muir via Tech-talk wrote:
> Hello!
>
> What C language standard (e.g., C99) and C++ language standard
> (e.g., C++11) does EPICS 7 Base require?
Currently epics-base and the bundled PVA modules should build with -std=c++98.


> Also, is there a C and C++ language standard for EPICS 7 modules?
>
> BTW, the EPICS 7 Base build system does not specify a C and C++ standard
> when compiling (e.g., via a "-std=" compiler option) on most platforms,
> but I think it should on all platforms.  I only see that compiler option
> being used in the following:
Of more practical importance than -std=... we test with older G++ and MSVC.


eg. with my PVXS modules, while I say >= c++11.  In practice my compatibility
target is g++ >= 4.8 (circa RHEL7) which implemented most, but not all, of c++11.


>    configure/os/CONFIG.Common.solaris-sparc-gnu
>    configure/os/CONFIG.Common.solaris-x86-gnu
>    configure/os/CONFIG.Common.RTEMS-uC5282
>
> Without that option, the standard when compiling is just whatever the
> compiler defaults to.
>
> Thanks!
>
> Lewis