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
|
#!./perl
BEGIN {
chdir 't' if -d 't';
require './test.pl';
set_up_inc('../lib');
require Config;
}
plan 17;
# compile time evaluation
my $test1_descr = 'compile time evaluation 1.234';
if (int(1.234) == 1) {pass($test1_descr)} else {fail($test1_descr)}
my $test2_descr = 'compile time evaluation -1.234';
if (int(-1.234) == -1) {pass($test2_descr)} else {fail($test2_descr)}
# run time evaluation
$x = 1.234;
cmp_ok(int($x), '==', 1, 'run time evaluation 1');
cmp_ok(int(-$x), '==', -1, 'run time evaluation -1');
$x = length("abc") % -10;
cmp_ok($x, '==', -7, 'subtract from string length');
{
my $fail;
use integer;
$x = length("abc") % -10;
$y = (3/-10)*-10;
ok($x+$y == 3, 'x+y equals 3') or ++$fail;
ok(abs($x) < 10, 'abs(x) < 10') or ++$fail;
if ($fail) {
diag("\$x == $x", "\$y == $y");
}
}
@x = ( 6, 8, 10);
cmp_ok($x["1foo"], '==', 8, 'check bad strings still get converted');
# 4,294,967,295 is largest unsigned 32 bit integer
$x = 4294967303.15;
$y = int ($x);
is($y, "4294967303", 'check values > 32 bits work');
$y = int (-$x);
is($y, "-4294967303", 'negative value more than maximum unsigned 32 bit value');
$x = 4294967294.2;
$y = int ($x);
is($y, "4294967294", 'floating point value slightly less than the largest unsigned 32 bit');
$x = 4294967295.7;
$y = int ($x);
is($y, "4294967295", 'floating point value slightly more than largest unsigned 32 bit');
$x = 4294967296.11312;
$y = int ($x);
is($y, "4294967296", 'floating point value more than largest unsigned 32 bit');
$y = int(279964589018079/59);
cmp_ok($y, '==', 4745162525730, 'compile time division, result of about 42 bits');
$y = 279964589018079;
$y = int($y/59);
cmp_ok($y, '==', 4745162525730, 'run time divison, result of about 42 bits');
SKIP:
{ # see #126635
my $large;
$large = eval "0xffff_ffff" if $Config::Config{ivsize} == 4;
$large = eval "0xffff_ffff_ffff_ffff" if $Config::Config{ivsize} == 8;
$large or skip "Unusual ivsize", 1;
for my $x ($large, -1) {
cmp_ok($x, "==", int($x), "check $x == int($x)");
}
}
|
