From: David Schleef <ds@schleef.org>
Date: Tue, 22 Jan 2002 09:32:28 +0000 (+0000)
Subject: Fixed strange unreproducible behavior with insn barfing.  Turns out
X-Git-Tag: r0_7_18~3
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=6fc61032794a8169d201ada6f2fa90d1dd827a33;p=comedilib.git

Fixed strange unreproducible behavior with insn barfing.  Turns out
that -5 is not really equal to -5.
---

diff --git a/comedi_calibrate/comedi_calibrate.c b/comedi_calibrate/comedi_calibrate.c
index a2a4357..384983a 100644
--- a/comedi_calibrate/comedi_calibrate.c
+++ b/comedi_calibrate/comedi_calibrate.c
@@ -651,7 +651,8 @@ int get_bipolar_lowgain(comedi_t *dev,int subdev)
 
 	for(i=0;i<n_ranges;i++){
 		range = comedi_get_range(dev,subdev,0,i);
-		if(range->min != -range->max)continue;
+		/* This method is better than a direct test, which might fail */
+		if((range->min+range->max)>(range->max*0.0001))continue;
 		if(range->max>max){
 			ret = i;
 			max=range->max;
@@ -671,7 +672,8 @@ int get_bipolar_highgain(comedi_t *dev,int subdev)
 
 	for(i=0;i<n_ranges;i++){
 		range = comedi_get_range(dev,subdev,0,i);
-		if(range->min != -range->max)continue;
+		/* This method is better than a direct test, which might fail */
+		if((range->min+range->max)>(range->max*0.0001))continue;
 		if(range->max<min){
 			ret = i;
 			min=range->max;
@@ -796,6 +798,8 @@ int comedi_data_read_n(comedi_t *it,unsigned int subdev,unsigned int chan,
 	printf("insn barfed: subdev=%d, chan=%d, range=%d, aref=%d, "
 		"n=%d, ret=%d, %s\n",subdev,chan,range,aref,n,ret,
 		strerror(errno));
+	printf("please report this error\n");
+	exit(1);
 
 	return ret;
 }