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<== Date ==> <== Thread ==>
Subject: Re: Does IOC name have any restrictions ?
From: Ralph Lange via Tech-talk <tech-talk at aps.anl.gov>
To: EPICS Tech Talk <tech-talk at aps.anl.gov>
Date: Tue, 23 Jun 2020 14:43:34 +0200
Hi Hitesh,

The standard application templates in EPICS Base use the IOC name (from the makeBaseApp command line) as the first part of a function name for some generated C code.
That's why - if you use the application templates from Base - the IOC name must work as a C identifier. If you go in and manually change those names to something else that is unique on the IOC, you're fine.
(In the standard structure, the IOC name is also used as part of a directory name - that would be the next place where using special characters might backfire.)

Cheers,
~Ralph


On Tue, 23 Jun 2020 at 13:38, Hitesh Dhola via Tech-talk <tech-talk at aps.anl.gov> wrote:
Hello,

I am getting a make error in ioc generation using makeBaseApp, if I use any numeric in name "test".

I created IOC using this,

../bin/windows-x64-mingw/makeBaseApp.pl -t ioc 3test
../bin/windows-x64-mingw/makeBaseApp.pl -i -t ioc 3test

But, make fails with following error.

----------------
3test_registerRecordDeviceDriver.cpp:248:5: error: expected unqualified-id before numeric constant
  248 | int 3test_registerRecordDeviceDriver(DBBASE *pbase)
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3test_registerRecordDeviceDriver.cpp: In function 'void rrddCallFunc(const iocshArgBuf*)':
3test_registerRecordDeviceDriver.cpp:291:19: error: unable to find numeric literal operator 'operator""test_registerRecordDeviceDriver'
  291 |     iocshSetError(3test_registerRecordDeviceDriver(*iocshPpdbbase));
-------------------------

It works fine if i use non-numeric, say using 'rtest' instead of '3test' is working fine. I am working on Windows 10 and MSYS environment.

Do we have any restriction in naming convention for IOC? or this is something else ?

Regards,
Hitesh

Replies:
Re: Does IOC name have any restrictions ? Hitesh Dhola via Tech-talk
References:
Does IOC name have any restrictions ? Hitesh Dhola via Tech-talk
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