From a78b4209f10c0ea66992258245a53ad4324aa05e Mon Sep 17 00:00:00 2001
From: James Willis <james.s.willis@durham.ac.uk>
Date: Thu, 1 Dec 2016 11:05:17 +0000
Subject: [PATCH] Make sure the sum is greater than zero before performing
division.
---
src/tools.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/tools.c b/src/tools.c
index 879ab1dae1..c8ab358120 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -578,7 +578,9 @@ int compare_values(double a, double b, double threshold, double *absDiff,
*absDiff = fabs(a - b);
*absSum = fabs(a + b);
- *relDiff = *absDiff / *absSum;
+ if( *absSum > 0.f) {
+ *relDiff = *absDiff / *absSum;
+ }
if (*relDiff > threshold) {
result = 1;
--
GitLab