From 2f8e6bf17edf40bff55877024657e07160429121 Mon Sep 17 00:00:00 2001 From: Andrew Johnson Date: Thu, 23 Jul 2015 13:05:38 -0500 Subject: [PATCH] Fix smoothing for Nan/Inf values in devAiSoftCallback --- src/std/dev/devAiSoftCallback.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/std/dev/devAiSoftCallback.c b/src/std/dev/devAiSoftCallback.c index d9427d68b..3744509ed 100644 --- a/src/std/dev/devAiSoftCallback.c +++ b/src/std/dev/devAiSoftCallback.c @@ -23,6 +23,7 @@ #include "dbChannel.h" #include "dbNotify.h" #include "epicsAssert.h" +#include "epicsMath.h" #include "recGbl.h" #include "recSup.h" #include "devSup.h" @@ -190,7 +191,7 @@ static long read_ai(aiRecord *prec) } /* Apply smoothing algorithm */ - if (prec->smoo != 0.0 && pdevPvt->smooth) + if (prec->smoo != 0.0 && pdevPvt->smooth && finite(prec->val)) prec->val = prec->val * prec->smoo + pdevPvt->buffer.value * (1.0 - prec->smoo); else