calcPerform

[Andrew Johnson]

It is possible for calcPerform to return OK even if the expression result is a NaN (Not a Number).

Additional information:
Category and priority fields changed, status resolved again - the Update Bug page allows this.

Original Mantis Bug: mantis-7
    http://www.aps.anl.gov/epics/mantis/view_bug_page.php?f_id=7

[Andrew Johnson (anj)]

This can be fixed for vxWorks by changing /src/libCom/calcPerform.c

diff -r1.31.6.1 calcPerform.c
104a105,106
> #include <private/mathP.h> /* For isNan*/
> #define isnan isNan
517c519
< return(0);
---
> return((isnan(*presult) ? -1 : 0));

Note that this fix will break any non-vxWorks uses of calcPerform such as for MEDM.

[Andrew Johnson (anj)]

Experimenting change of category

[Andrew Johnson (anj)]

Fixed in R3.13.7