1 regcomp.c These tests have been moved to t/re/reg_mesg.t 2 except for those that explicitly test line numbers. 3 4__END__ 5use warnings 'regexp'; 6$r=qr/(??{ q"\\b+" })/; 7"a" =~ /a$r/; # warning should come from this line 8EXPECT 9\b+ matches null string many times in regex; marked by <-- HERE in m/\b+ <-- HERE / at - line 3. 10