# the format supported by op/regexp.t. If you want to add a test
# that does fit that format, add it to op/re_tests, not here.
-print "1..207\n";
+print "1..210\n";
BEGIN {
chdir 't' if -d 't';
print "not " if "@b" ne "@c";
print "ok $test\n";
$test++;
+
+# see if backtracking optimization works correctly
+"\n\n" =~ /\n $ \n/x or print "not ";
+print "ok $test\n";
+$test++;
+
+"\n\n" =~ /\n* $ \n/x or print "not ";
+print "ok $test\n";
+$test++;
+
+"\n\n" =~ /\n+ $ \n/x or print "not ";
+print "ok $test\n";
+$test++;