3 # $RCSfile: pack.t,v $$Revision: 4.1 $$Date: 92/08/07 18:28:11 $
7 $format = "c2 x5 C C x s d i l a6";
8 # Need the expression in here to force ary[5] to be numeric. This avoids
9 # test2 failing because ary2 goes str->numeric->str and ary doesn't.
10 @ary = (1,-100,127,128,32767,987.654321098 / 100.0,12345,123456,"abcdef");
11 $foo = pack($format,@ary);
12 @ary2 = unpack($format,$foo);
14 print ($#ary == $#ary2 ? "ok 1\n" : "not ok 1\n");
17 $out2=join(':',@ary2);
18 print ($out1 eq $out2 ? "ok 2\n" : "not ok 2\n");
20 print ($foo =~ /def/ ? "ok 3\n" : "not ok 3\n");
22 # How about counting bits?
24 print +($x = unpack("%32B*", "\001\002\004\010\020\040\100\200\377")) == 16
25 ? "ok 4\n" : "not ok 4 $x\n";
27 print +($x = unpack("%32b69", "\001\002\004\010\020\040\100\200\017")) == 12
28 ? "ok 5\n" : "not ok 5 $x\n";
30 print +($x = unpack("%32B69", "\001\002\004\010\020\040\100\200\017")) == 9
31 ? "ok 6\n" : "not ok 6 $x\n";
33 my $sum = 129; # ASCII
34 $sum = 103 if ($^O eq 'os390'); # An EBCDIC variant.
36 print +($x = unpack("%32B*", "Now is the time for all good blurfl")) == $sum
37 ? "ok 7\n" : "not ok 7 $x\n";
39 open(BIN, "./perl") || open(BIN, "./perl.exe")
40 || die "Can't open ../perl or ../perl.exe: $!\n";
41 sysread BIN, $foo, 8192;
44 $sum = unpack("%32b*", $foo);
45 $longway = unpack("b*", $foo);
46 print $sum == $longway =~ tr/1/1/ ? "ok 8\n" : "not ok 8\n";
48 print +($x = unpack("I",pack("I", 0xFFFFFFFF))) == 0xFFFFFFFF
49 ? "ok 9\n" : "not ok 9 $x\n";
53 my @x = (5,130,256,560,32000,3097152,268435455,1073741844,
54 '4503599627365785','23728385234614992549757750638446');
55 my $x = pack('w*', @x);
56 my $y = pack 'H*', '0581028200843081fa0081bd8440ffffff7f848080801487ffffffffffdb19caefe8e1eeeea0c2e1e3e8ede1ee6e';
58 print $x eq $y ? "ok $test\n" : "not ok $test\n"; $test++;
60 @y = unpack('w*', $y);
64 print $a eq $b ? "ok $test\n" : "not ok $test\n$a\n$b\n"; $test++;
67 @y = unpack('w2', $x);
69 print scalar(@y) == 2 ? "ok $test\n" : "not ok $test\n"; $test++;
70 print $y[1] == 130 ? "ok $test\n" : "not ok $test\n"; $test++;
73 eval { $x = unpack 'w', pack 'C*', 0xff, 0xff};
74 print $@ ne '' ? "ok $test\n" : "not ok $test\n"; $test++;
76 eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff};
77 print $@ ne '' ? "ok $test\n" : "not ok $test\n"; $test++;
79 eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
80 print $@ ne '' ? "ok $test\n" : "not ok $test\n"; $test++;
83 # test the "p" template
86 print((unpack("p",pack("p","foo")) eq "foo" ? "ok " : "not ok "),$test++,"\n");
89 print((unpack("p",pack("p",$test)) == $test ? "ok " : "not ok "),$test++,"\n");
92 sub foo { my $a = "a"; return $a . $a++ . $a++ }
96 local $SIG{__WARN__} = sub {
97 print "ok ",$test++,"\n" if $_[0] =~ /temporary val/
99 my $junk = pack("p", &foo);
100 print "not ok ", $test++, "\n" if $last == $test;
103 # undef should give null pointer
104 print((pack("p", undef) =~ /^\0+/ ? "ok " : "not ok "),$test++,"\n");
106 # Check for optimizer bug (e.g. Digital Unix GEM cc with -O4 on DU V4.0B gives
107 # 4294967295 instead of -1)
108 # see #ifdef __osf__ in pp.c pp_unpack
110 print( ((unpack("i",pack("i",-1))) == -1 ? "ok " : "not ok "),$test++,"\n");
112 # 31..36: test the pack lengths of s S i I l L
113 print "not " unless length(pack("s", 0)) == 2;
114 print "ok ", $test++, "\n";
116 print "not " unless length(pack("S", 0)) == 2;
117 print "ok ", $test++, "\n";
119 print "not " unless length(pack("i", 0)) >= 4;
120 print "ok ", $test++, "\n";
122 print "not " unless length(pack("I", 0)) >= 4;
123 print "ok ", $test++, "\n";
125 print "not " unless length(pack("l", 0)) == 4;
126 print "ok ", $test++, "\n";
128 print "not " unless length(pack("L", 0)) == 4;
129 print "ok ", $test++, "\n";
131 # 37..40: test the pack lengths of n N v V
133 print "not " unless length(pack("n", 0)) == 2;
134 print "ok ", $test++, "\n";
136 print "not " unless length(pack("N", 0)) == 4;
137 print "ok ", $test++, "\n";
139 print "not " unless length(pack("v", 0)) == 2;
140 print "ok ", $test++, "\n";
142 print "not " unless length(pack("V", 0)) == 4;
143 print "ok ", $test++, "\n";
145 # 41..56: test unpack-pack lengths
147 my @templates = qw(c C i I s S l L n N v V f d);
149 # quads not supported everywhere: if not, retest floats/doubles
150 # to preserve the test count...
151 eval { my $q = pack("q",0) };
152 push @templates, $@ !~ /Invalid type in pack/ ? qw(q Q) : qw(f d);
154 foreach my $t (@templates) {
155 my @t = unpack("$t*", pack("$t*", 12, 34));
157 unless @t == 2 and (($t[0] == 12 and $t[1] == 34) or ($t =~ /[nv]/i));
158 print "ok ", $test++, "\n";
161 # 57..58: uuencode/decode
163 $in = join "", map { chr } 0..255;
165 M``$"`P0%!@<("0H+#`T.#Q`1$A,4%187&!D:&QP='A\@(2(C)"4F)R@I*BLL
166 M+2XO,#$R,S0U-C<X.3H[/#T^/T!!0D-$149'2$E*2TQ-3D]045)35%565UA9
167 M6EM<75Y?8&%B8V1E9F=H:6IK;&UN;W!Q<G-T=79W>'EZ>WQ]?G^`@8*#A(6&
168 MAXB)BHN,C8Z/D)&2DY25EI>8F9J;G)V>GZ"AHJ.DI::GJ*FJJZRMKJ^PL;*S
169 MM+6VM[BYNKN\O;Z_P,'"P\3%QL?(R<K+S,W.S]#1TM/4U=;7V-G:V]S=WM_@
170 ?X>+CY.7FY^CIZNOL[>[O\/'R\_3U]O?X^?K[_/W^_P``
173 print "not " unless pack('u', $in) eq $uu;
174 print "ok ", $test++, "\n";
176 print "not " unless unpack('u', $uu) eq $in;
177 print "ok ", $test++, "\n";