pp.c	TODO

  Invalid type in unpack: '%c
	my $A = pack ("A,A", 1,2) ;
	my @A = unpack ("A,A", "22") ;

  Attempt to pack pointer to temporary value
	pack("p", "abc") ;

__END__
# pp_pack.c
use warnings 'pack' ;
use warnings 'unpack' ;
my @a = unpack ("A,A", "22") ;
my $a = pack ("A,A", 1,2) ;
no warnings 'pack' ;
no warnings 'unpack' ;
my @b = unpack ("A,A", "22") ;
my $b = pack ("A,A", 1,2) ;
EXPECT
Invalid type in unpack: ',' at - line 4.
Invalid type in pack: ',' at - line 5.
########
# pp.c
use warnings 'uninitialized' ;
my $a = undef ; 
my $b = $$a;
no warnings 'uninitialized' ;
my $c = $$a;
EXPECT
Use of uninitialized value in scalar dereference at - line 4.
########
# pp_pack.c
use warnings 'pack' ;
sub foo { my $a = "a"; return $a . $a++ . $a++ }
my $a = pack("p", &foo) ;
no warnings 'pack' ;
my $b = pack("p", &foo) ;
EXPECT
Attempt to pack pointer to temporary value at - line 4.
########
# pp.c
use warnings 'misc' ;
bless \[], "" ;
no warnings 'misc' ;
bless \[], "" ;
EXPECT
Explicit blessing to '' (assuming package main) at - line 3.
########
# pp.c
use utf8 ;
$_ = "\x80  \xff" ;
reverse ;
EXPECT
########
# pp_pack.c
use warnings 'pack' ;
print unpack("C", pack("C",   -1)), "\n",
	unpack("C", pack("C",    0)), "\n",
	unpack("C", pack("C",  255)), "\n",
	unpack("C", pack("C",  256)), "\n",
	unpack("c", pack("c", -129)), "\n",
	unpack("c", pack("c", -128)), "\n",
	unpack("c", pack("c",  127)), "\n",
	unpack("c", pack("c",  128)), "\n";
no warnings 'pack' ;
print unpack("C", pack("C",   -1)), "\n";
print unpack("C", pack("C",    0)), "\n";
print unpack("C", pack("C",  255)), "\n";
print unpack("C", pack("C",  256)), "\n";
print unpack("c", pack("c", -129)), "\n";
print unpack("c", pack("c", -128)), "\n";
print unpack("c", pack("c",  127)), "\n";
print unpack("c", pack("c",  128)), "\n";
EXPECT
Character in "C" format wrapped at - line 3.
Character in "C" format wrapped at - line 3.
Character in "c" format wrapped at - line 3.
Character in "c" format wrapped at - line 3.
255
0
255
0
127
-128
127
-128
255
0
255
0
127
-128
127
-128