Experimental Physics and
Industrial Control System

Dirk Zimoch <[email protected]> · Tue, 02 Dec 2008 09:50:30 +0100

Hi Tim,
Arithmetic with macros like EPICS_MODIFICATION<(l) only works if
EPICS_MODIFICATION is numeric. This is not guaranteed. In pre-releases like
3.14.10-pre1 we have:
# This part may contain letters, eg 0beta1
EPICS_MODIFICATION = 10pre1
Of course it would be nice to have a mechanism to find out the current EPICS
release, but EPICS does not provide this feature.
Dirk

Tim Mooney wrote:

John,
You can fix the scanOnce errors like this:
   scanOnce((struct dbCommon *)psscan);
and the precision problem like this:
   pPos->p_pr = precPvt->pDynLinkInfo->precision.dp;
But note that the precision fix is base-version dependent.  The current
sscanRecord code actually looks like this:
#include <epicsVersion.h> /* for LT_EPICSBASE macro */

...

/* Less than EPICS base version test.*/

#define LT_EPICSBASE(v,r,l) ((EPICS_VERSION<=(v)) &&
(EPICS_REVISION<=(r)) && (EPICS_MODIFICATION<(l)))

...

#if LT_EPICSBASE(3,14,10)

pPos->p_pr = precPvt->pDynLinkInfo->precision;

#else

pPos->p_pr = precPvt->pDynLinkInfo->precision.dp;

#endif
Tim

John M. Skinner wrote:

I'm trying to build sscan 2.6.2 on EPICS base 3.14.10 but get these
compile warnings and errors:
../sscanRecord.c: In function `special':

../sscanRecord.c:1451: warning: passing arg 1 of `scanOnce' from
incompatible pointer type

../sscanRecord.c:1585: warning: passing arg 1 of `scanOnce' from
incompatible pointer type

../sscanRecord.c: In function `notifyCallback':

../sscanRecord.c:2457: warning: passing arg 1 of `scanOnce' from
incompatible pointer type

../sscanRecord.c: In function `userGetCallback':

../sscanRecord.c:2523: warning: passing arg 1 of `scanOnce' from
incompatible pointer type

../sscanRecord.c: In function `pvSearchCallback':

../sscanRecord.c:2613: error: incompatible types in assignment

../sscanRecord.c:2643: error: incompatible types in assignment

../sscanRecord.c:2743: warning: passing arg 1 of `scanOnce' from
incompatible pointer type

../sscanRecord.c: In function `posMonCallback':

../sscanRecord.c:2818: warning: passing arg 1 of `scanOnce' from
incompatible pointer type

../sscanRecord.c: In function `doPuts':

../sscanRecord.c:4013: warning: passing arg 1 of `scanOnce' from
incompatible pointer type

../sscanRecord.c:4190: warning: passing arg 1 of `scanOnce' from
incompatible pointer type
I get the same results on both Fedora Core 3 and Fedora Core 8. I have
no problem building the scan record on EPICS base 3.14.9.
thanks,
John Skinner (BNL/NSLS)

--
Dr. Dirk Zimoch
Paul Scherrer Institut, WBGB/006
5232 Villigen PSI, Switzerland
Phone +41 56 310 5182

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System