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ioc/db (recGblCheckDeadband): pull most common case to front

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Ralph Lange
2014-08-05 11:17:29 +02:00
parent ded1f3572d
commit 130d98463c
1 changed files with 4 additions and 4 deletions
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src/ioc/db/recGbl.c
+4 -4
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@@ -280,13 +280,13 @@ void recGblCheckDeadband(epicsFloat64 *poldval, const epicsFloat64 newval,
{
double delta = 0;
if (!!isnan(newval) != !!isnan(*poldval) || !!isinf(newval) != !!isinf(*poldval)) {
/* one is NaN or +-inf, the other finite -> send update */
delta = epicsINF;
} else if (!isinf(newval) && !isnan(newval)) {
if (finite(newval) && finite(*poldval)) {
/* both are finite -> compare delta with deadband */
delta = *poldval - newval;
if (delta < 0.0) delta = -delta;
} else if (!!isnan(newval) != !!isnan(*poldval) || !!isinf(newval) != !!isinf(*poldval)) {
/* one is NaN or +-inf, the other not -> send update */
delta = epicsINF;
} else if (signbit(newval) != signbit(*poldval)) {
/* one is +inf, the other -inf -> send update */
delta = epicsINF;