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 $x\n";
33 print +($x = unpack("%32B*", "Now is the time for all good blurfl")) == 129
34 ? "ok 7\n" : "not ok 7 $x\n";
36 open(BIN, "./perl") || open(BIN, "./perl.exe")
37 || die "Can't open ../perl or ../perl.exe: $!\n";
38 sysread BIN, $foo, 8192;
41 $sum = unpack("%32b*", $foo);
42 $longway = unpack("b*", $foo);
43 print $sum == $longway =~ tr/1/1/ ? "ok 8\n" : "not ok 8\n";
45 print +($x = unpack("I",pack("I", 0xFFFFFFFF))) == 0xFFFFFFFF
46 ? "ok 9\n" : "not ok 9 $x\n";
50 my @x = (5,130,256,560,32000,3097152,268435455,1073741844,
51 '4503599627365785','23728385234614992549757750638446');
52 my $x = pack('w*', @x);
53 my $y = pack 'H*', '0581028200843081fa0081bd8440ffffff7f848080801487ffffffffffdb19caefe8e1eeeea0c2e1e3e8ede1ee6e';
55 print $x eq $y ? "ok $test\n" : "not ok $test\n"; $test++;
57 @y = unpack('w*', $y);
61 print $a eq $b ? "ok $test\n" : "not ok $test\n$a\n$b\n"; $test++;
64 @y = unpack('w2', $x);
66 print scalar(@y) == 2 ? "ok $test\n" : "not ok $test\n"; $test++;
67 print $y[1] == 130 ? "ok $test\n" : "not ok $test\n"; $test++;
70 eval { $x = unpack 'w', pack 'C*', 0xff, 0xff};
71 print $@ ne '' ? "ok $test\n" : "not ok $test\n"; $test++;
73 eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff};
74 print $@ ne '' ? "ok $test\n" : "not ok $test\n"; $test++;
76 eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
77 print $@ ne '' ? "ok $test\n" : "not ok $test\n"; $test++;
80 # test the "p" template
83 print((unpack("p",pack("p","foo")) eq "foo" ? "ok " : "not ok "),$test++,"\n");
86 print((unpack("p",pack("p",$test)) == $test ? "ok " : "not ok "),$test++,"\n");
89 sub foo { my $a = "a"; return $a . $a++ . $a++ }
93 local $SIG{__WARN__} = sub {
94 print "ok ",$test++,"\n" if $_[0] =~ /temporary val/
96 my $junk = pack("p", &foo);
97 print "not ok ", $test++, "\n" if $last == $test;
100 # undef should give null pointer
101 print((pack("p", undef) =~ /^\0+/ ? "ok " : "not ok "),$test++,"\n");