Experimental Physics and
Industrial Control System

Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov> · Wed, 29 Nov 2023 07:18:57 -0800

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

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System