1 files changed, 11 insertions, 4 deletions
diff --git a/t/op/arith.t b/t/op/arith.t
index f1bd827f9b..fe2f0f458b 100755
--- a/t/op/arith.t
+++ b/t/op/arith.t
@@ -10,7 +10,14 @@ try 1,  13 %  4 ==  1;
 try 2, -13 %  4 ==  3;
 try 3,  13 % -4 == -3;
 try 4, -13 % -4 == -1;
-try 5, abs( 13e21 %  4e21 -  1e21) < 1e6;
-try 6, abs(-13e21 %  4e21 -  3e21) < 1e6;
-try 7, abs( 13e21 % -4e21 - -3e21) < 1e6;
-try 8, abs(-13e21 % -4e21 - -1e21) < 1e6;
+
+my $limit = 1e6;
+
+# Division (and modulo) of floating point numbers
+# seem to be rather sloppy in Cray.
+$limit = 1e8 if $^O eq 'unicos';
+
+try 5, abs( 13e21 %  4e21 -  1e21) < $limit;
+try 6, abs(-13e21 %  4e21 -  3e21) < $limit;
+try 7, abs( 13e21 % -4e21 - -3e21) < $limit;
+try 8, abs(-13e21 % -4e21 - -1e21) < $limit;