+$ops{$_} = 'list' for qw/padany flip match entereval readline/;
+$ops{stat} = { 0 => 0.5, 13 => 0.5 };
+$ops{caller} = sub { my @a = caller 0; scalar @a }->();
+$ops{localtime} = do { my @a = localtime; scalar @a };
+$ops{gmtime} = do { my @a = gmtime; scalar @a };