Experimental Physics and
Industrial Control System

"Martin L. Smith" <[email protected]> · Wed, 31 Jan 2018 06:44:25 -0600

I know that I have seen this before in EPICS 3.14.12.5 but I simply
removed the commented line.

Marty

On 01/31/2018 06:26 AM, Mark Rivers wrote:

You didn't say what version of EPICS base you are using.

________________________________
From: [email protected] <[email protected]> on behalf of Amien Crombie <[email protected]>
Sent: Wednesday, January 31, 2018 3:28 AM
To: EPICS Tech-Talk
Subject: EPICS database macro warning

Hi

I inadvertently stumbled upon this strange 'bug' in my ioc.db file

I had the following record:

     record(subArray,    "$(uid):attenuator")
     {
             field(INP,        "$(uid):raw")
             field(NELM,        "9")
             field(MALM,        "9")
             field(INDX,        "9")
             field(FTVL,        "LONG")
          #   field(FLNK,        "$(dd):getX")

      }

Now the field 'FLNK' is commented out and I have deleted my macro $(dd) in my substitution file.

When I run my IOC, I get the following warning

macLib: macro dd is undefined (expanding string #    field(FLNK, "$(dd)")

Warning: 'db/dbExample1.db' line 16 has undefined macros

So the comment (#) still evaluates the macro, even if the documentation says it ignores the whole line. Of course if the macro exist it runs without the warning.

Not a critical issue but can be misleading.

Thanks

Amien

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System