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pp_hot.c AOK
Filehandle %s never opened
$f = $a = "abc" ; print $f $a
Filehandle %s opened only for input
print STDIN "abc" ;
Filehandle %s opened only for output
print <STDOUT> ;
print on closed filehandle %s
close STDIN ; print STDIN "abc" ;
uninitialized
my $a = undef ; my @b = @$a
uninitialized
my $a = undef ; my %b = %$a
Odd number of elements in hash list
%X = (1,2,3) ;
Reference found where even-sized list expected
$X = [ 1 ..3 ];
Read on closed filehandle %s
close STDIN ; $a = <STDIN>;
Deep recursion on subroutine \"%s\"
sub fred { fred() if $a++ < 200} fred()
Deep recursion on anonymous subroutine
$a = sub { &$a if $a++ < 200} &$a
__END__
# pp_hot.c
use warning 'unopened' ;
$f = $a = "abc" ;
print $f $a;
no warning 'unopened' ;
print $f $a;
EXPECT
Filehandle main::abc never opened at - line 4.
########
# pp_hot.c
use warning 'io' ;
print STDIN "anc";
print <STDOUT>;
print <STDERR>;
open(FOO, ">&STDOUT") and print <FOO>;
print getc(STDERR);
print getc(FOO);
read(FOO,$_,1);
no warning 'io' ;
print STDIN "anc";
####################################################################
# N O T E #
# This test is known to fail on Linux and *BSD systems with glibc. #
# The glibc development team is aware of the problem, and has #
# determined a fix for the next release of that library. #
####################################################################
EXPECT
Filehandle main::STDIN opened only for input at - line 3.
Filehandle main::STDOUT opened only for output at - line 4.
Filehandle main::STDERR opened only for output at - line 5.
Filehandle main::FOO opened only for output at - line 6.
Filehandle main::STDERR opened only for output at - line 7.
Filehandle main::FOO opened only for output at - line 8.
Filehandle main::FOO opened only for output at - line 9.
########
# pp_hot.c
use warning 'closed' ;
close STDIN ;
print STDIN "anc";
no warning 'closed' ;
print STDIN "anc";
EXPECT
print on closed filehandle main::STDIN at - line 4.
########
# pp_hot.c
use warning 'uninitialized' ;
my $a = undef ;
my @b = @$a;
no warning 'uninitialized' ;
my @c = @$a;
EXPECT
Use of uninitialized value at - line 4.
########
# pp_hot.c
use warning 'uninitialized' ;
my $a = undef ;
my %b = %$a;
no warning 'uninitialized' ;
my %c = %$a;
EXPECT
Use of uninitialized value at - line 4.
########
# pp_hot.c
use warning 'unsafe' ;
my %X ; %X = (1,2,3) ;
no warning 'unsafe' ;
my %Y ; %Y = (1,2,3) ;
EXPECT
Odd number of elements in hash assignment at - line 3.
########
# pp_hot.c
use warning 'unsafe' ;
my %X ; %X = [1 .. 3] ;
no warning 'unsafe' ;
my %Y ; %Y = [1 .. 3] ;
EXPECT
Reference found where even-sized list expected at - line 3.
########
# pp_hot.c
use warning 'closed' ;
close STDIN ; $a = <STDIN> ;
no warning 'closed' ;
$a = <STDIN> ;
EXPECT
Read on closed filehandle main::STDIN at - line 3.
########
# pp_hot.c
use warning 'recursion' ;
sub fred
{
fred() if $a++ < 200
}
{
local $SIG{__WARN__} = sub {
die "ok\n" if $_[0] =~ /^Deep recursion on subroutine "main::fred"/
};
fred();
}
EXPECT
ok
########
# pp_hot.c
no warning 'recursion' ;
sub fred
{
fred() if $a++ < 200
}
{
local $SIG{__WARN__} = sub {
die "ok\n" if $_[0] =~ /^Deep recursion on subroutine "main::fred"/
};
fred();
}
EXPECT
########
# pp_hot.c
use warning 'recursion' ;
$b = sub
{
&$b if $a++ < 200
} ;
&$b ;
EXPECT
Deep recursion on anonymous subroutine at - line 5.
########
# pp_hot.c
no warning 'recursion' ;
$b = sub
{
&$b if $a++ < 200
} ;
&$b ;
EXPECT
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