1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
}
use strict;
use warnings;
use vars qw(@array @r $k $v $c);
plan tests => 63;
@array = qw(crunch zam bloop);
(@r) = each @array;
is (scalar @r, 2, "'each' on array returns index and value of next element");
is ($r[0], 0, "got expected index");
is ($r[1], 'crunch', "got expected value");
($k, $v) = each @array;
is ($k, 1, "got expected index of next element");
is ($v, 'zam', "got expected value of next element");
($k, $v) = each @array;
is ($k, 2, "got expected index of remaining element");
is ($v, 'bloop', "got expected value of remaining element");
(@r) = each @array;
is (scalar @r, 0,
"no elements remaining to be iterated over in original array");
(@r) = each @array;
is (scalar @r, 2, "start second iteration over original array");
is ($r[0], 0, "got expected index");
is ($r[1], 'crunch', "got expected value");
($k) = each @array;
is ($k, 1, "got index when only index was assigned to variable");
my @lex_array = qw(PLOP SKLIZZORCH RATTLE);
(@r) = each @lex_array;
is (scalar @r, 2, "'each' on array returns index and value of next element");
is ($r[0], 0, "got expected index");
is ($r[1], 'PLOP', "got expected value");
($k, $v) = each @lex_array;
is ($k, 1, "got expected index of next element");
is ($v, 'SKLIZZORCH', "got expected value of next element");
($k) = each @lex_array;
is ($k, 2, "got expected index of remaining element");
(@r) = each @lex_array;
is (scalar @r, 0,
"no elements remaining to be iterated over in original array");
my $ar = ['bacon'];
(@r) = each @$ar;
is (scalar @r, 2,
"'each' on array inside reference returns index and value of next element");
is ($r[0], 0, "got expected index");
is ($r[1], 'bacon', "got expected value of array element inside reference");
(@r) = each @$ar;
is (scalar @r, 0,
"no elements remaining to be iterated over in array inside reference");
is (each @$ar, 0, "scalar context 'each' on array returns expected index");
is (scalar each @$ar, undef,
"no elements remaining to be iterated over; array reference case");
my @keys;
@keys = keys @array;
is ("@keys", "0 1 2",
"'keys' on array in list context returns list of indices");
@keys = keys @lex_array;
is ("@keys", "0 1 2",
"'keys' on another array in list context returns list of indices");
($k, $v) = each @array;
is ($k, 0, "got expected index");
is ($v, 'crunch', "got expected value");
@keys = keys @array;
is ("@keys", "0 1 2",
"'keys' on array in list context returns list of indices");
($k, $v) = each @array;
is ($k, 0, "following 'keys', got expected index");
is ($v, 'crunch', "following 'keys', got expected value");
my @values;
@values = values @array;
is ("@values", "@array",
"'values' on array returns list of values");
@values = values @lex_array;
is ("@values", "@lex_array",
"'values' on another array returns list of values");
($k, $v) = each @array;
is ($k, 0, "following 'values', got expected index");
is ($v, 'crunch', "following 'values', got expected index");
@values = values @array;
is ("@values", "@array",
"following 'values' and 'each', 'values' continues to return expected list of values");
($k, $v) = each @array;
is ($k, 0,
"following 'values', 'each' and 'values', 'each' continues to return expected index");
is ($v, 'crunch',
"following 'values', 'each' and 'values', 'each' continues to return expected value");
# reset
while (each @array) { }
# each(ARRAY) in the conditional loop
$c = 0;
while (($k, $v) = each @array) {
is ($k, $c, "'each' on array in loop returns expected index '$c'");
is ($v, $array[$k],
"'each' on array in loop returns expected value '$array[$k]'");
$c++;
}
# each(ARRAY) on scalar context in conditional loop
# should guarantee to be wrapped into defined() function.
# first return value will be 0 --> [#90888]
$c = 0;
$k = 0;
$v = 0;
while ($k = each @array) {
is ($k, $v,
"'each' on array in scalar context in loop returns expected index '$v'");
$v++;
}
# each(ARRAY) in the conditional loop
$c = 0;
for (; ($k, $v) = each @array ;) {
is ($k, $c,
"'each' on array in list context in loop returns expected index '$c'");
is ($v, $array[$k],
"'each' on array in list context in loop returns expected value '$array[$k]'");
$c++;
}
# each(ARRAY) on scalar context in conditional loop
# --> [#90888]
$c = 0;
$k = 0;
$v = 0;
for (; $k = each(@array) ;) {
is ($k, $v,
"'each' on array in scalar context in loop returns expected index '$v'");
$v++;
}
# Reset the iterator when the array is cleared [RT #75596]
{
my @a = 'a' .. 'c';
my ($i, $v) = each @a;
is ("$i-$v", '0-a', "got expected index and value");
@a = 'A' .. 'C';
($i, $v) = each @a;
is ("$i-$v", '0-A',
"got expected new index and value after array gets new content");
}
# Check that the iterator is reset when localization ends
{
@array = 'a' .. 'c';
my ($i, $v) = each @array;
is ("$i-$v", '0-a', "got expected index and value");
{
local @array = 'A' .. 'C';
my ($i, $v) = each @array;
is ("$i-$v", '0-A',
"got expected new index and value after array is localized and gets new content");
($i, $v) = each @array;
is ("$i-$v", '1-B',
"got expected next index and value after array is localized and gets new content");
}
($i, $v) = each @array;
is ("$i-$v", '1-b',
"got expected next index and value upon return to pre-localized array");
# Explicit reset
while (each @array) { }
}
|
