X-Git-Url: http://gb7djk.dxcluster.net/gitweb/gitweb.cgi?a=blobdiff_plain;f=perl%2FDXUtil.pm;h=5edb1994a3ac80f3d496c6d0bc61b5364cf3abb6;hb=9c8f43f26a7db08c4ff6ef2213c95c9f509abe36;hp=b04cf4905d87435c37e50568c99d48014450264c;hpb=d235b0d777f1a90c65d5dcf8cd6adaeb9f2b7e99;p=spider.git

diff --git a/perl/DXUtil.pm b/perl/DXUtil.pm
index b04cf490..5edb1994 100644
--- a/perl/DXUtil.pm
+++ b/perl/DXUtil.pm
@@ -549,7 +549,7 @@ sub difft
 	if (ref $b eq 'ARRAY') {
 		$t = $b->[1] - $b->[0];
 	} else {
-		if ($adds && $adds >= $b) {
+		if ($adds && $adds =~ /^\d+$/ && $adds >= $b) {
 			$t = $adds - $b;
 			$adds = shift;
 		} else {