This is a live mirror of the Perl 5 development currently hosted at https://github.com/perl/perl5
skip num.t #47 on VMS
[perl5.git] / t / base / num.t
CommitLineData
925fa5a8
JH
1#!./perl
2
20f6aaab 3print "1..50\n";
925fa5a8
JH
4
5# First test whether the number stringification works okay.
6# (Testing with == would exercize the IV/NV part, not the PV.)
7
8$a = 1; "$a";
bb7cd144 9print $a eq "1" ? "ok 1\n" : "not ok 1 # $a\n";
925fa5a8
JH
10
11$a = -1; "$a";
bb7cd144 12print $a eq "-1" ? "ok 2\n" : "not ok 2 # $a\n";
925fa5a8
JH
13
14$a = 1.; "$a";
bb7cd144 15print $a eq "1" ? "ok 3\n" : "not ok 3 # $a\n";
925fa5a8
JH
16
17$a = -1.; "$a";
bb7cd144 18print $a eq "-1" ? "ok 4\n" : "not ok 4 # $a\n";
925fa5a8
JH
19
20$a = 0.1; "$a";
bb7cd144 21print $a eq "0.1" ? "ok 5\n" : "not ok 5 # $a\n";
925fa5a8
JH
22
23$a = -0.1; "$a";
bb7cd144 24print $a eq "-0.1" ? "ok 6\n" : "not ok 6 # $a\n";
925fa5a8
JH
25
26$a = .1; "$a";
bb7cd144 27print $a eq "0.1" ? "ok 7\n" : "not ok 7 # $a\n";
925fa5a8
JH
28
29$a = -.1; "$a";
bb7cd144 30print $a eq "-0.1" ? "ok 8\n" : "not ok 8 # $a\n";
925fa5a8
JH
31
32$a = 10.01; "$a";
bb7cd144 33print $a eq "10.01" ? "ok 9\n" : "not ok 9 # $a\n";
925fa5a8
JH
34
35$a = 1e3; "$a";
bb7cd144 36print $a eq "1000" ? "ok 10\n" : "not ok 10 # $a\n";
925fa5a8
JH
37
38$a = 10.01e3; "$a";
bb7cd144 39print $a eq "10010" ? "ok 11\n" : "not ok 11 # $a\n";
925fa5a8
JH
40
41$a = 0b100; "$a";
bb7cd144 42print $a eq "4" ? "ok 12\n" : "not ok 12 # $a\n";
925fa5a8
JH
43
44$a = 0100; "$a";
bb7cd144 45print $a eq "64" ? "ok 13\n" : "not ok 13 # $a\n";
925fa5a8
JH
46
47$a = 0x100; "$a";
bb7cd144 48print $a eq "256" ? "ok 14\n" : "not ok 14 # $a\n";
925fa5a8
JH
49
50$a = 1000; "$a";
bb7cd144 51print $a eq "1000" ? "ok 15\n" : "not ok 15 # $a\n";
925fa5a8
JH
52
53# Okay, now test the numerics.
54# We may be assuming too much, given the painfully well-known floating
55# point sloppiness, but the following are still quite reasonable
56# assumptions which if not working would confuse people quite badly.
57
58$a = 1; "$a"; # Keep the stringification as a potential troublemaker.
bb7cd144
JH
59print $a + 1 == 2 ? "ok 16\n" : "not ok 16 #" . $a + 1 . "\n";
60# Don't know how useful printing the stringification of $a + 1 really is.
925fa5a8
JH
61
62$a = -1; "$a";
bb7cd144 63print $a + 1 == 0 ? "ok 17\n" : "not ok 17 #" . $a + 1 . "\n";
925fa5a8
JH
64
65$a = 1.; "$a";
bb7cd144 66print $a + 1 == 2 ? "ok 18\n" : "not ok 18 #" . $a + 1 . "\n";
925fa5a8
JH
67
68$a = -1.; "$a";
bb7cd144 69print $a + 1 == 0 ? "ok 19\n" : "not ok 19 #" . $a + 1 . "\n";
925fa5a8 70
49424450 71sub ok { # Can't assume too much of floating point numbers.
8194bf88 72 my ($a, $b, $c) = @_;
49424450
JH
73 abs($a - $b) <= $c;
74}
75
925fa5a8 76$a = 0.1; "$a";
49424450 77print ok($a + 1, 1.1, 0.05) ? "ok 20\n" : "not ok 20 #" . $a + 1 . "\n";
925fa5a8
JH
78
79$a = -0.1; "$a";
49424450 80print ok($a + 1, 0.9, 0.05) ? "ok 21\n" : "not ok 21 #" . $a + 1 . "\n";
925fa5a8
JH
81
82$a = .1; "$a";
49424450 83print ok($a + 1, 1.1, 0.005) ? "ok 22\n" : "not ok 22 #" . $a + 1 . "\n";
925fa5a8
JH
84
85$a = -.1; "$a";
49424450 86print ok($a + 1, 0.9, 0.05) ? "ok 23\n" : "not ok 23 #" . $a + 1 . "\n";
925fa5a8
JH
87
88$a = 10.01; "$a";
49424450 89print ok($a + 1, 11.01, 0.005) ? "ok 24\n" : "not ok 24 #" . $a + 1 . "\n";
925fa5a8
JH
90
91$a = 1e3; "$a";
bb7cd144 92print $a + 1 == 1001 ? "ok 25\n" : "not ok 25 #" . $a + 1 . "\n";
925fa5a8
JH
93
94$a = 10.01e3; "$a";
bb7cd144 95print $a + 1 == 10011 ? "ok 26\n" : "not ok 26 #" . $a + 1 . "\n";
925fa5a8
JH
96
97$a = 0b100; "$a";
bb7cd144 98print $a + 1 == 0b101 ? "ok 27\n" : "not ok 27 #" . $a + 1 . "\n";
925fa5a8
JH
99
100$a = 0100; "$a";
bb7cd144 101print $a + 1 == 0101 ? "ok 28\n" : "not ok 28 #" . $a + 1 . "\n";
925fa5a8
JH
102
103$a = 0x100; "$a";
bb7cd144 104print $a + 1 == 0x101 ? "ok 29\n" : "not ok 29 #" . $a + 1 . "\n";
925fa5a8
JH
105
106$a = 1000; "$a";
bb7cd144 107print $a + 1 == 1001 ? "ok 30\n" : "not ok 30 #" . $a + 1 . "\n";
0ad373b6
YST
108
109# back to some basic stringify tests
d1eb8299 110# we expect NV stringification to work according to C sprintf %.*g rules
0ad373b6 111
0443feb9
JH
112if ($^O eq 'os2') { # In the long run, fix this. For 5.8.0, deal.
113 $a = 0.01; "$a";
114 print $a eq "0.01" || $a eq '1e-02' ? "ok 31\n" : "not ok 31 # $a\n";
0ad373b6 115
0443feb9
JH
116 $a = 0.001; "$a";
117 print $a eq "0.001" || $a eq '1e-03' ? "ok 32\n" : "not ok 32 # $a\n";
0ad373b6 118
0443feb9
JH
119 $a = 0.0001; "$a";
120 print $a eq "0.0001" || $a eq '1e-04' ? "ok 33\n" : "not ok 33 # $a\n";
121} else {
122 $a = 0.01; "$a";
123 print $a eq "0.01" ? "ok 31\n" : "not ok 31 # $a\n";
124
125 $a = 0.001; "$a";
126 print $a eq "0.001" ? "ok 32\n" : "not ok 32 # $a\n";
127
128 $a = 0.0001; "$a";
129 print $a eq "0.0001" ? "ok 33\n" : "not ok 33 # $a\n";
130}
0ad373b6
YST
131
132$a = 0.00009; "$a";
133print $a eq "9e-05" || $a eq "9e-005" ? "ok 34\n" : "not ok 34 # $a\n";
134
135$a = 1.1; "$a";
136print $a eq "1.1" ? "ok 35\n" : "not ok 35 # $a\n";
137
138$a = 1.01; "$a";
139print $a eq "1.01" ? "ok 36\n" : "not ok 36 # $a\n";
140
141$a = 1.001; "$a";
142print $a eq "1.001" ? "ok 37\n" : "not ok 37 # $a\n";
143
144$a = 1.0001; "$a";
145print $a eq "1.0001" ? "ok 38\n" : "not ok 38 # $a\n";
146
147$a = 1.00001; "$a";
148print $a eq "1.00001" ? "ok 39\n" : "not ok 39 # $a\n";
149
150$a = 1.000001; "$a";
151print $a eq "1.000001" ? "ok 40\n" : "not ok 40 # $a\n";
152
153$a = 0.; "$a";
154print $a eq "0" ? "ok 41\n" : "not ok 41 # $a\n";
155
156$a = 100000.; "$a";
157print $a eq "100000" ? "ok 42\n" : "not ok 42 # $a\n";
158
159$a = -100000.; "$a";
160print $a eq "-100000" ? "ok 43\n" : "not ok 43 # $a\n";
161
162$a = 123.456; "$a";
163print $a eq "123.456" ? "ok 44\n" : "not ok 44 # $a\n";
164
94b339ad 165$a = 1e34; "$a";
1a6a79b7
TD
166unless ($^O eq 'posix-bc')
167{ print $a eq "1e+34" || $a eq "1e+034" ? "ok 45\n" : "not ok 45 $a\n"; }
168else
169{ print "ok 45 # skipped on $^O\n"; }
8194bf88
DM
170
171# see bug #15073
172
173$a = 0.00049999999999999999999999999999999999999;
174$b = 0.0005000000000000000104;
175print $a <= $b ? "ok 46\n" : "not ok 46\n";
176
c3892a8e
CB
177if ($^O eq 'ultrix' || $^O eq 'VMS') {
178 # Ultrix enters looong nirvana over this. VMS blows up when configured with
179 # D_FLOAT (but with G_FLOAT or IEEE works fine). The test should probably
180 # make the number of 0's a function of NV_DIG, but that's not in Config and
181 # we probably don't want to suck Config into a base test anyway.
ad415dae
JH
182 print "ok 47\n";
183} else {
184 $a = 0.00000000000000000000000000000000000000000000000000000000000000000001;
185 print $a > 0 ? "ok 47\n" : "not ok 47\n";
186}
8194bf88
DM
187
188$a = 80000.0000000000000000000000000;
189print $a == 80000.0 ? "ok 48\n" : "not ok 48\n";
190
191$a = 1.0000000000000000000000000000000000000000000000000000000000000000000e1;
192print $a == 10.0 ? "ok 49\n" : "not ok 49\n";
20f6aaab
AS
193
194# From Math/Trig - number has to be long enough to exceed at least DBL_DIG
195
196$a = 57.295779513082320876798154814169;
197print ok($a*10,572.95779513082320876798154814169,1e-10) ? "ok 50\n" :
198 "not ok 50 # $a\n";