ao record convert overflow

["Schoeneburg, Bernd" <bernd.schoeneburg@desy.de>]

Epics R3.14.11 (same as 3.14.12)  vxWorks Pentium
I have encountered a problem when using the aoRecord. The convert 
routine produces an "overlow" when the double is casted to long. When 
the value is > (double)LONG_MAX the resulting value of RVAL becomes 
LONG_MIN instead LONG_MAX. This jump is not healthy for output devices. 
Possibly this happens only in my environment of compiler or Pentium 
target. I installed the following fix for me.
diff -r1.2 aoRecord.c
22a23
> #include <limits.h>
466,467c467,473
<     if (value >= 0.0)
<         prec->rval = (epicsInt32)(value + 0.5) - prec->roff;
---
>     if (value >= 0.0) {
>         value -= (double)prec->roff + 0.5;
>         if (value > (double)LONG_MAX)
>            prec->rval = LONG_MAX;
>         else
>            prec->rval = (epicsInt32)value;
>     }

Bernd