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pp.c TODO
substr outside of string
$a = "ab" ; $b = substr($a, 4,5) ;
Attempt to use reference as lvalue in substr
$a = "ab" ; $b = \$a ; substr($b, 1,1) = $b
uninitialized in pp_rv2gv()
my *b = *{ undef()}
uninitialized in pp_rv2sv()
my $a = undef ; my $b = $$a
Odd number of elements in hash list
my $a = { 1,2,3 } ;
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") ;
Explicit blessing to '' (assuming package main)
bless \[], "";
Constant subroutine %s undefined <<<TODO
Constant subroutine (anonymous) undefined <<<TODO
Mandatory Warnings
------------------
Malformed UTF-8 character (not tested: difficult to produce with
perl now)
__END__
# pp.c
use warnings 'substr' ;
$a = "ab" ;
$b = substr($a, 4,5) ;
no warnings 'substr' ;
$a = "ab" ;
$b = substr($a, 4,5) ;
EXPECT
substr outside of string at - line 4.
########
# pp.c
use warnings 'substr' ;
$a = "ab" ;
$b = \$a ;
substr($b, 1,1) = "ab" ;
no warnings 'substr' ;
substr($b, 1,1) = "ab" ;
EXPECT
Attempt to use reference as lvalue in substr at - line 5.
########
# pp.c
use warnings 'uninitialized' ;
# TODO
EXPECT
########
# pp.c
use warnings 'misc' ;
my $a = { 1,2,3};
no warnings 'misc' ;
my $b = { 1,2,3};
EXPECT
Odd number of elements in hash assignment at - line 3.
########
# pp.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.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.c
BEGIN {
if (ord("\t") == 5) {
print "SKIPPED\n# Character codes differ on ebcdic machines.";
exit 0;
}
}
use warnings 'utf8' ;
use utf8 ;
$_ = "\x80 \xff" ;
reverse ;
no warnings 'utf8' ;
$_ = "\x80 \xff" ;
reverse ;
EXPECT
\x80 will produce malformed UTF-8 character; use \x{80} for that at - line 10.
\xff will produce malformed UTF-8 character; use \x{ff} for that at - line 10.
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