#!./perl
-print "1..4\n";
+print "1..8\n";
sub try ($$) {
print +($_[1] ? "ok" : "not ok"), " $_[0]\n";
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;