Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Thu, 16 Nov 2006 13:39:29 -0600

Ralph Lange wrote:

I know you had an idea for that, but I can't find the mail, so:

Is there a smart way to get revision strings (static const char *id =
"@(#) ...") into C code without producing a compiler warning?

I was using a construct like this:

static const struct sccsid {struct sccsid *p; char *id; } sccsid = {
    &id, "$Id$"
}

But I just discovered online that the right way to do it seems to be this:

static const char sccsid[] = "$Id$";

When using an array instead of a pointer, gcc doesn't warn.

I'm about to commit that * => [] change to src/ca/cac.cpp,

src/misc/epicsRelease.c, src/cas/generic/caServerI.cc,

src/libCom/osi/devLib.c and src/libCom/osi/epicsTime.cpp to fix the

warnings from those files...

- Andrew
--
There is considerable overlap between the intelligence of the smartest
bears and the dumbest tourists -- Yosemite National Park Ranger