1#!./perl 2 3print "1..16\n"; 4 5for ($i = 0; $i <= 10; $i++) { 6 $x[$i] = $i; 7} 8$y = $x[10]; 9print "#1 :$y: eq :10:\n"; 10$y = join(' ', @x); 11print "#1 :$y: eq :0 1 2 3 4 5 6 7 8 9 10:\n"; 12if (join(' ', @x) eq '0 1 2 3 4 5 6 7 8 9 10') { 13 print "ok 1\n"; 14} else { 15 print "not ok 1\n"; 16} 17 18$i = $c = 0; 19for (;;) { 20 $c++; 21 last if $i++ > 10; 22} 23if ($c == 12) {print "ok 2\n";} else {print "not ok 2\n";} 24 25$foo = 3210; 26@ary = (1,2,3,4,5); 27foreach $foo (@ary) { 28 $foo *= 2; 29} 30if (join('',@ary) eq '246810') {print "ok 3\n";} else {print "not ok 3\n";} 31 32for (@ary) { 33 s/(.*)/ok $1\n/; 34} 35 36print $ary[1]; 37 38# test for internal scratch array generation 39# this also tests that $foo was restored to 3210 after test 3 40for (split(' ','a b c d e')) { 41 $foo .= $_; 42} 43if ($foo eq '3210abcde') {print "ok 5\n";} else {print "not ok 5 $foo\n";} 44 45foreach $foo (("ok 6\n","ok 7\n")) { 46 print $foo; 47} 48 49sub foo { 50 for $i (1..5) { 51 return $i if $_[0] == $i; 52 } 53} 54 55print foo(1) == 1 ? "ok" : "not ok", " 8\n"; 56print foo(2) == 2 ? "ok" : "not ok", " 9\n"; 57print foo(5) == 5 ? "ok" : "not ok", " 10\n"; 58 59sub bar { 60 return (1, 2, 4); 61} 62 63$a = 0; 64foreach $b (bar()) { 65 $a += $b; 66} 67print $a == 7 ? "ok" : "not ok", " 11\n"; 68 69$loop_count = 0; 70for ("-3" .. "0") { 71 $loop_count++; 72} 73print $loop_count == 4 ? "ok" : "not ok", " 12\n"; 74 75# modifying arrays in loops is a no-no 76# - unless the stack is reference-counted 77@a = (3,4); 78eval { @a = () for (1,2,@a) }; 79print $@ =~ ((Internals::stack_refcounted() & 1) 80 ? qr/^$/ 81 : qr/Use of freed value in iteration/ 82 ) 83 ? "ok" : "not ok", 84 " 13 - freed value in iteration\n"; 85 86# [perl #30061] double destory when same iterator variable (eg $_) used in 87# DESTROY as used in for loop that triggered the destroy 88 89{ 90 91 my $x = 0; 92 sub X::DESTROY { 93 my $o = shift; 94 $x++; 95 1 for (1); 96 } 97 98 my %h; 99 $h{foo} = bless [], 'X'; 100 delete $h{foo} for $h{foo}, 1; 101 print $x == 1 ? "ok" : "not ok", " 14 - double destroy, x=$x\n"; 102} 103 104# [perl #78194] foreach() aliasing op return values 105for ("${\''}") { 106 print "not " unless \$_ == \$_; 107 print 'ok 15 - [perl \#78194] \$_ == \$_ inside for("$x"){...}', 108 "\n"; 109} 110 111# [perl #123286] Lone C-style for in a block messes up the stack 112@_ = (1..3, do {for(0;0;){}}, 4..6); 113print "not " unless "@_" eq '1 2 3 0 4 5 6'; 114print "ok 16 - [perl #78194] Lone C-style for in a block\n"; 115