| 1 | #!./perl
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| 2 |
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| 3 | # We have the following types of loop:
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| 4 | #
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| 5 | # 1a) while(A) {B}
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| 6 | # 1b) B while A;
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| 7 | #
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| 8 | # 2a) until(A) {B}
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| 9 | # 2b) B until A;
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| 10 | #
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| 11 | # 3a) for(@A) {B}
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| 12 | # 3b) B for A;
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| 13 | #
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| 14 | # 4a) for (A;B;C) {D}
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| 15 | #
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| 16 | # 5a) { A } # a bare block is a loop which runs once
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| 17 | #
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| 18 | # Loops of type (b) don't allow for next/last/redo style
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| 19 | # control, so we ignore them here. Type (a) loops can
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| 20 | # all be labelled, so there are ten possibilities (each
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| 21 | # of 5 types, labelled/unlabelled). We therefore need
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| 22 | # thirty tests to try the three control statements against
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| 23 | # the ten types of loop. For the first four types it's useful
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| 24 | # to distinguish the case where next re-iterates from the case
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| 25 | # where it leaves the loop. That makes 38.
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| 26 | # All these tests rely on "last LABEL"
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| 27 | # so if they've *all* failed, maybe you broke that...
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| 28 | #
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| 29 | # These tests are followed by an extra test of nested loops.
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| 30 | # Feel free to add more here.
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| 31 | #
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| 32 | # -- .robin. <[email protected]> 2001-03-13
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| 33 |
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| 34 | print "1..44\n";
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| 35 |
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| 36 | my $ok;
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| 37 |
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| 38 | ## while() loop without a label
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| 39 |
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| 40 | TEST1: { # redo
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| 41 |
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| 42 | $ok = 0;
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| 43 |
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| 44 | my $x = 1;
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| 45 | my $first_time = 1;
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| 46 | while($x--) {
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| 47 | if (!$first_time) {
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| 48 | $ok = 1;
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| 49 | last TEST1;
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| 50 | }
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| 51 | $ok = 0;
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| 52 | $first_time = 0;
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| 53 | redo;
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| 54 | last TEST1;
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| 55 | }
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| 56 | continue {
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| 57 | $ok = 0;
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| 58 | last TEST1;
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| 59 | }
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| 60 | $ok = 0;
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| 61 | }
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| 62 | print ($ok ? "ok 1\n" : "not ok 1\n");
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| 63 |
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| 64 | TEST2: { # next (succesful)
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| 65 |
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| 66 | $ok = 0;
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| 67 |
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| 68 | my $x = 2;
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| 69 | my $first_time = 1;
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| 70 | my $been_in_continue = 0;
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| 71 | while($x--) {
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| 72 | if (!$first_time) {
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| 73 | $ok = $been_in_continue;
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| 74 | last TEST2;
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| 75 | }
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| 76 | $ok = 0;
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| 77 | $first_time = 0;
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| 78 | next;
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| 79 | last TEST2;
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| 80 | }
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| 81 | continue {
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| 82 | $been_in_continue = 1;
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| 83 | }
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| 84 | $ok = 0;
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| 85 | }
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| 86 | print ($ok ? "ok 2\n" : "not ok 2\n");
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| 87 |
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| 88 | TEST3: { # next (unsuccesful)
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| 89 |
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| 90 | $ok = 0;
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| 91 |
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| 92 | my $x = 1;
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| 93 | my $first_time = 1;
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| 94 | my $been_in_loop = 0;
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| 95 | my $been_in_continue = 0;
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| 96 | while($x--) {
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| 97 | $been_in_loop = 1;
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| 98 | if (!$first_time) {
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| 99 | $ok = 0;
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| 100 | last TEST3;
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| 101 | }
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| 102 | $ok = 0;
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| 103 | $first_time = 0;
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| 104 | next;
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| 105 | last TEST3;
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| 106 | }
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| 107 | continue {
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| 108 | $been_in_continue = 1;
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| 109 | }
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| 110 | $ok = $been_in_loop && $been_in_continue;
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| 111 | }
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| 112 | print ($ok ? "ok 3\n" : "not ok 3\n");
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| 113 |
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| 114 | TEST4: { # last
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| 115 |
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| 116 | $ok = 0;
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| 117 |
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| 118 | my $x = 1;
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| 119 | my $first_time = 1;
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| 120 | while($x++) {
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| 121 | if (!$first_time) {
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| 122 | $ok = 0;
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| 123 | last TEST4;
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| 124 | }
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| 125 | $ok = 0;
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| 126 | $first_time = 0;
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| 127 | last;
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| 128 | last TEST4;
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| 129 | }
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| 130 | continue {
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| 131 | $ok = 0;
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| 132 | last TEST4;
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| 133 | }
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| 134 | $ok = 1;
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| 135 | }
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| 136 | print ($ok ? "ok 4\n" : "not ok 4\n");
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| 137 |
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| 138 |
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| 139 | ## until() loop without a label
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| 140 |
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| 141 | TEST5: { # redo
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| 142 |
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| 143 | $ok = 0;
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| 144 |
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| 145 | my $x = 0;
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| 146 | my $first_time = 1;
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| 147 | until($x++) {
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| 148 | if (!$first_time) {
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| 149 | $ok = 1;
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| 150 | last TEST5;
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| 151 | }
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| 152 | $ok = 0;
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| 153 | $first_time = 0;
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| 154 | redo;
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| 155 | last TEST5;
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| 156 | }
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| 157 | continue {
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| 158 | $ok = 0;
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| 159 | last TEST5;
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| 160 | }
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| 161 | $ok = 0;
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| 162 | }
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| 163 | print ($ok ? "ok 5\n" : "not ok 5\n");
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| 164 |
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| 165 | TEST6: { # next (succesful)
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| 166 |
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| 167 | $ok = 0;
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| 168 |
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| 169 | my $x = 0;
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| 170 | my $first_time = 1;
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| 171 | my $been_in_continue = 0;
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| 172 | until($x++ >= 2) {
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| 173 | if (!$first_time) {
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| 174 | $ok = $been_in_continue;
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| 175 | last TEST6;
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| 176 | }
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| 177 | $ok = 0;
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| 178 | $first_time = 0;
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| 179 | next;
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| 180 | last TEST6;
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| 181 | }
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| 182 | continue {
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| 183 | $been_in_continue = 1;
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| 184 | }
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| 185 | $ok = 0;
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| 186 | }
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| 187 | print ($ok ? "ok 6\n" : "not ok 6\n");
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| 188 |
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| 189 | TEST7: { # next (unsuccesful)
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| 190 |
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| 191 | $ok = 0;
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| 192 |
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| 193 | my $x = 0;
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| 194 | my $first_time = 1;
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| 195 | my $been_in_loop = 0;
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| 196 | my $been_in_continue = 0;
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| 197 | until($x++) {
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| 198 | $been_in_loop = 1;
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| 199 | if (!$first_time) {
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| 200 | $ok = 0;
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| 201 | last TEST7;
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| 202 | }
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| 203 | $ok = 0;
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| 204 | $first_time = 0;
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| 205 | next;
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| 206 | last TEST7;
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| 207 | }
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| 208 | continue {
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| 209 | $been_in_continue = 1;
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| 210 | }
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| 211 | $ok = $been_in_loop && $been_in_continue;
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| 212 | }
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| 213 | print ($ok ? "ok 7\n" : "not ok 7\n");
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| 214 |
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| 215 | TEST8: { # last
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| 216 |
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| 217 | $ok = 0;
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| 218 |
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| 219 | my $x = 0;
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| 220 | my $first_time = 1;
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| 221 | until($x++ == 10) {
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| 222 | if (!$first_time) {
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| 223 | $ok = 0;
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| 224 | last TEST8;
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| 225 | }
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| 226 | $ok = 0;
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| 227 | $first_time = 0;
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| 228 | last;
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| 229 | last TEST8;
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| 230 | }
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| 231 | continue {
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| 232 | $ok = 0;
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| 233 | last TEST8;
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| 234 | }
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| 235 | $ok = 1;
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| 236 | }
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| 237 | print ($ok ? "ok 8\n" : "not ok 8\n");
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| 238 |
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| 239 | ## for(@array) loop without a label
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| 240 |
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| 241 | TEST9: { # redo
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| 242 |
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| 243 | $ok = 0;
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| 244 |
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| 245 | my $first_time = 1;
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| 246 | for(1) {
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| 247 | if (!$first_time) {
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| 248 | $ok = 1;
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| 249 | last TEST9;
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| 250 | }
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| 251 | $ok = 0;
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| 252 | $first_time = 0;
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| 253 | redo;
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| 254 | last TEST9;
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| 255 | }
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| 256 | continue {
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| 257 | $ok = 0;
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| 258 | last TEST9;
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| 259 | }
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| 260 | $ok = 0;
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| 261 | }
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| 262 | print ($ok ? "ok 9\n" : "not ok 9\n");
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| 263 |
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| 264 | TEST10: { # next (succesful)
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| 265 |
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| 266 | $ok = 0;
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| 267 |
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| 268 | my $first_time = 1;
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| 269 | my $been_in_continue = 0;
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| 270 | for(1,2) {
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| 271 | if (!$first_time) {
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| 272 | $ok = $been_in_continue;
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| 273 | last TEST10;
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| 274 | }
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| 275 | $ok = 0;
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| 276 | $first_time = 0;
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| 277 | next;
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| 278 | last TEST10;
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| 279 | }
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| 280 | continue {
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| 281 | $been_in_continue = 1;
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| 282 | }
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| 283 | $ok = 0;
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| 284 | }
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| 285 | print ($ok ? "ok 10\n" : "not ok 10\n");
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| 286 |
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| 287 | TEST11: { # next (unsuccesful)
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| 288 |
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| 289 | $ok = 0;
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| 290 |
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| 291 | my $first_time = 1;
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| 292 | my $been_in_loop = 0;
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| 293 | my $been_in_continue = 0;
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| 294 | for(1) {
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| 295 | $been_in_loop = 1;
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| 296 | if (!$first_time) {
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| 297 | $ok = 0;
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| 298 | last TEST11;
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| 299 | }
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| 300 | $ok = 0;
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| 301 | $first_time = 0;
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| 302 | next;
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| 303 | last TEST11;
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| 304 | }
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| 305 | continue {
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| 306 | $been_in_continue = 1;
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| 307 | }
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| 308 | $ok = $been_in_loop && $been_in_continue;
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| 309 | }
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| 310 | print ($ok ? "ok 11\n" : "not ok 11\n");
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| 311 |
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| 312 | TEST12: { # last
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| 313 |
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| 314 | $ok = 0;
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| 315 |
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| 316 | my $first_time = 1;
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| 317 | for(1..10) {
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| 318 | if (!$first_time) {
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| 319 | $ok = 0;
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| 320 | last TEST12;
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| 321 | }
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| 322 | $ok = 0;
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| 323 | $first_time = 0;
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| 324 | last;
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| 325 | last TEST12;
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| 326 | }
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| 327 | continue {
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| 328 | $ok=0;
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| 329 | last TEST12;
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| 330 | }
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| 331 | $ok = 1;
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| 332 | }
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| 333 | print ($ok ? "ok 12\n" : "not ok 12\n");
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| 334 |
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| 335 | ## for(;;) loop without a label
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| 336 |
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| 337 | TEST13: { # redo
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| 338 |
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| 339 | $ok = 0;
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| 340 |
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| 341 | for(my $first_time = 1; 1;) {
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| 342 | if (!$first_time) {
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| 343 | $ok = 1;
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| 344 | last TEST13;
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| 345 | }
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| 346 | $ok = 0;
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| 347 | $first_time=0;
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| 348 |
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| 349 | redo;
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| 350 | last TEST13;
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| 351 | }
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| 352 | $ok = 0;
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| 353 | }
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| 354 | print ($ok ? "ok 13\n" : "not ok 13\n");
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| 355 |
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| 356 | TEST14: { # next (successful)
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| 357 |
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| 358 | $ok = 0;
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| 359 |
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| 360 | for(my $first_time = 1; 1; $first_time=0) {
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| 361 | if (!$first_time) {
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| 362 | $ok = 1;
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| 363 | last TEST14;
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| 364 | }
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| 365 | $ok = 0;
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| 366 | next;
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| 367 | last TEST14;
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| 368 | }
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| 369 | $ok = 0;
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| 370 | }
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| 371 | print ($ok ? "ok 14\n" : "not ok 14\n");
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| 372 |
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| 373 | TEST15: { # next (unsuccesful)
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| 374 |
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| 375 | $ok = 0;
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| 376 |
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| 377 | my $x=1;
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| 378 | my $been_in_loop = 0;
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| 379 | for(my $first_time = 1; $x--;) {
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| 380 | $been_in_loop = 1;
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| 381 | if (!$first_time) {
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| 382 | $ok = 0;
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| 383 | last TEST15;
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| 384 | }
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| 385 | $ok = 0;
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| 386 | $first_time = 0;
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| 387 | next;
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| 388 | last TEST15;
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| 389 | }
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| 390 | $ok = $been_in_loop;
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| 391 | }
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| 392 | print ($ok ? "ok 15\n" : "not ok 15\n");
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| 393 |
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| 394 | TEST16: { # last
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| 395 |
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| 396 | $ok = 0;
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| 397 |
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| 398 | for(my $first_time = 1; 1; last TEST16) {
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| 399 | if (!$first_time) {
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| 400 | $ok = 0;
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| 401 | last TEST16;
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| 402 | }
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| 403 | $ok = 0;
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| 404 | $first_time = 0;
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| 405 | last;
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| 406 | last TEST16;
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| 407 | }
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| 408 | $ok = 1;
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| 409 | }
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| 410 | print ($ok ? "ok 16\n" : "not ok 16\n");
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| 411 |
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| 412 | ## bare block without a label
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| 413 |
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| 414 | TEST17: { # redo
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| 415 |
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| 416 | $ok = 0;
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| 417 | my $first_time = 1;
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| 418 |
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| 419 | {
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| 420 | if (!$first_time) {
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| 421 | $ok = 1;
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| 422 | last TEST17;
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| 423 | }
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| 424 | $ok = 0;
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| 425 | $first_time=0;
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| 426 |
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| 427 | redo;
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| 428 | last TEST17;
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| 429 | }
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| 430 | continue {
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| 431 | $ok = 0;
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| 432 | last TEST17;
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| 433 | }
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| 434 | $ok = 0;
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| 435 | }
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| 436 | print ($ok ? "ok 17\n" : "not ok 17\n");
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| 437 |
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| 438 | TEST18: { # next
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| 439 |
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| 440 | $ok = 0;
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| 441 | {
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| 442 | next;
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| 443 | last TEST18;
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| 444 | }
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| 445 | continue {
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| 446 | $ok = 1;
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| 447 | last TEST18;
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| 448 | }
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| 449 | $ok = 0;
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| 450 | }
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| 451 | print ($ok ? "ok 18\n" : "not ok 18\n");
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| 452 |
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| 453 | TEST19: { # last
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| 454 |
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| 455 | $ok = 0;
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| 456 | {
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| 457 | last;
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| 458 | last TEST19;
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| 459 | }
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| 460 | continue {
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| 461 | $ok = 0;
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| 462 | last TEST19;
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| 463 | }
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| 464 | $ok = 1;
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| 465 | }
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| 466 | print ($ok ? "ok 19\n" : "not ok 19\n");
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| 467 |
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| 468 |
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| 469 | ### Now do it all again with labels
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| 470 |
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| 471 | ## while() loop with a label
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| 472 |
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| 473 | TEST20: { # redo
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| 474 |
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| 475 | $ok = 0;
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| 476 |
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| 477 | my $x = 1;
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| 478 | my $first_time = 1;
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| 479 | LABEL20: while($x--) {
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| 480 | if (!$first_time) {
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| 481 | $ok = 1;
|
|---|
| 482 | last TEST20;
|
|---|
| 483 | }
|
|---|
| 484 | $ok = 0;
|
|---|
| 485 | $first_time = 0;
|
|---|
| 486 | redo LABEL20;
|
|---|
| 487 | last TEST20;
|
|---|
| 488 | }
|
|---|
| 489 | continue {
|
|---|
| 490 | $ok = 0;
|
|---|
| 491 | last TEST20;
|
|---|
| 492 | }
|
|---|
| 493 | $ok = 0;
|
|---|
| 494 | }
|
|---|
| 495 | print ($ok ? "ok 20\n" : "not ok 20\n");
|
|---|
| 496 |
|
|---|
| 497 | TEST21: { # next (succesful)
|
|---|
| 498 |
|
|---|
| 499 | $ok = 0;
|
|---|
| 500 |
|
|---|
| 501 | my $x = 2;
|
|---|
| 502 | my $first_time = 1;
|
|---|
| 503 | my $been_in_continue = 0;
|
|---|
| 504 | LABEL21: while($x--) {
|
|---|
| 505 | if (!$first_time) {
|
|---|
| 506 | $ok = $been_in_continue;
|
|---|
| 507 | last TEST21;
|
|---|
| 508 | }
|
|---|
| 509 | $ok = 0;
|
|---|
| 510 | $first_time = 0;
|
|---|
| 511 | next LABEL21;
|
|---|
| 512 | last TEST21;
|
|---|
| 513 | }
|
|---|
| 514 | continue {
|
|---|
| 515 | $been_in_continue = 1;
|
|---|
| 516 | }
|
|---|
| 517 | $ok = 0;
|
|---|
| 518 | }
|
|---|
| 519 | print ($ok ? "ok 21\n" : "not ok 21\n");
|
|---|
| 520 |
|
|---|
| 521 | TEST22: { # next (unsuccesful)
|
|---|
| 522 |
|
|---|
| 523 | $ok = 0;
|
|---|
| 524 |
|
|---|
| 525 | my $x = 1;
|
|---|
| 526 | my $first_time = 1;
|
|---|
| 527 | my $been_in_loop = 0;
|
|---|
| 528 | my $been_in_continue = 0;
|
|---|
| 529 | LABEL22: while($x--) {
|
|---|
| 530 | $been_in_loop = 1;
|
|---|
| 531 | if (!$first_time) {
|
|---|
| 532 | $ok = 0;
|
|---|
| 533 | last TEST22;
|
|---|
| 534 | }
|
|---|
| 535 | $ok = 0;
|
|---|
| 536 | $first_time = 0;
|
|---|
| 537 | next LABEL22;
|
|---|
| 538 | last TEST22;
|
|---|
| 539 | }
|
|---|
| 540 | continue {
|
|---|
| 541 | $been_in_continue = 1;
|
|---|
| 542 | }
|
|---|
| 543 | $ok = $been_in_loop && $been_in_continue;
|
|---|
| 544 | }
|
|---|
| 545 | print ($ok ? "ok 22\n" : "not ok 22\n");
|
|---|
| 546 |
|
|---|
| 547 | TEST23: { # last
|
|---|
| 548 |
|
|---|
| 549 | $ok = 0;
|
|---|
| 550 |
|
|---|
| 551 | my $x = 1;
|
|---|
| 552 | my $first_time = 1;
|
|---|
| 553 | LABEL23: while($x++) {
|
|---|
| 554 | if (!$first_time) {
|
|---|
| 555 | $ok = 0;
|
|---|
| 556 | last TEST23;
|
|---|
| 557 | }
|
|---|
| 558 | $ok = 0;
|
|---|
| 559 | $first_time = 0;
|
|---|
| 560 | last LABEL23;
|
|---|
| 561 | last TEST23;
|
|---|
| 562 | }
|
|---|
| 563 | continue {
|
|---|
| 564 | $ok = 0;
|
|---|
| 565 | last TEST23;
|
|---|
| 566 | }
|
|---|
| 567 | $ok = 1;
|
|---|
| 568 | }
|
|---|
| 569 | print ($ok ? "ok 23\n" : "not ok 23\n");
|
|---|
| 570 |
|
|---|
| 571 |
|
|---|
| 572 | ## until() loop with a label
|
|---|
| 573 |
|
|---|
| 574 | TEST24: { # redo
|
|---|
| 575 |
|
|---|
| 576 | $ok = 0;
|
|---|
| 577 |
|
|---|
| 578 | my $x = 0;
|
|---|
| 579 | my $first_time = 1;
|
|---|
| 580 | LABEL24: until($x++) {
|
|---|
| 581 | if (!$first_time) {
|
|---|
| 582 | $ok = 1;
|
|---|
| 583 | last TEST24;
|
|---|
| 584 | }
|
|---|
| 585 | $ok = 0;
|
|---|
| 586 | $first_time = 0;
|
|---|
| 587 | redo LABEL24;
|
|---|
| 588 | last TEST24;
|
|---|
| 589 | }
|
|---|
| 590 | continue {
|
|---|
| 591 | $ok = 0;
|
|---|
| 592 | last TEST24;
|
|---|
| 593 | }
|
|---|
| 594 | $ok = 0;
|
|---|
| 595 | }
|
|---|
| 596 | print ($ok ? "ok 24\n" : "not ok 24\n");
|
|---|
| 597 |
|
|---|
| 598 | TEST25: { # next (succesful)
|
|---|
| 599 |
|
|---|
| 600 | $ok = 0;
|
|---|
| 601 |
|
|---|
| 602 | my $x = 0;
|
|---|
| 603 | my $first_time = 1;
|
|---|
| 604 | my $been_in_continue = 0;
|
|---|
| 605 | LABEL25: until($x++ >= 2) {
|
|---|
| 606 | if (!$first_time) {
|
|---|
| 607 | $ok = $been_in_continue;
|
|---|
| 608 | last TEST25;
|
|---|
| 609 | }
|
|---|
| 610 | $ok = 0;
|
|---|
| 611 | $first_time = 0;
|
|---|
| 612 | next LABEL25;
|
|---|
| 613 | last TEST25;
|
|---|
| 614 | }
|
|---|
| 615 | continue {
|
|---|
| 616 | $been_in_continue = 1;
|
|---|
| 617 | }
|
|---|
| 618 | $ok = 0;
|
|---|
| 619 | }
|
|---|
| 620 | print ($ok ? "ok 25\n" : "not ok 25\n");
|
|---|
| 621 |
|
|---|
| 622 | TEST26: { # next (unsuccesful)
|
|---|
| 623 |
|
|---|
| 624 | $ok = 0;
|
|---|
| 625 |
|
|---|
| 626 | my $x = 0;
|
|---|
| 627 | my $first_time = 1;
|
|---|
|
|---|
