11 eval { for (\2) { $_ = <FH> } };
12 like($@, 'Modification of a read-only value attempted', '[perl #19566]');
16 is($a .= <A>, 3, '#21628 - $a .= <A> , A eof');
18 is($a .= <A>, 4, '#21628 - $a .= <A> , A closed');
22 # 82 is chosen to exceed the length for sv_grow in do_readline (80)
23 foreach my $k ('k', 'k'x82) {
25 = runperl (switches => '-l', stdin => '', stderr => 1,
26 prog => "%a = qw($k v); \$_ = <> foreach keys %a; print qw(end)",
28 is ($result, "end", '[perl #21614] for length ' . length $k);
32 foreach my $k ('perl', 'perl'x21) {
34 = runperl (switches => '-l', stdin => ' rules', stderr => 1,
35 prog => "%a = qw($k v); foreach (keys %a) {\$_ .= <>; print}",
37 is ($result, "$k rules", 'rcatline to shared sv for length ' . length $k);
40 foreach my $l (1, 82) {
45 is ($k, "moo\n", 'catline to COW sv for length ' . length $copy);
49 foreach my $l (1, 21) {
54 is ($k, "$perl rules\n", 'rcatline to COW sv for length ' . length $perl);