mg.c	AOK

  No such signal: SIG%s
    $SIG{FRED} = sub {}

  SIG%s handler \"%s\" not defined.
    $SIG{"INT"} = "ok3"; kill "INT",$$;

__END__
# mg.c
use warnings 'signal' ;
$SIG{FRED} = sub {};
EXPECT
No such signal: SIGFRED at - line 3.
########
# mg.c
no warnings 'signal' ;
$SIG{FRED} = sub {};
EXPECT

########
# mg.c
use warnings 'signal' ;
if ($^O eq 'MSWin32' || $^O eq 'NetWare' || $^O eq 'VMS') {
    print "SKIPPED\n# $^O, can't kill() to raise()\n"; exit;
}
$|=1;
$SIG{"INT"} = "fred"; kill "INT",$$;
EXPECT
SIGINT handler "fred" not defined.
########
# mg.c
no warnings 'signal' ;
if ($^O eq 'MSWin32' || $^O eq 'NetWare' || $^O eq 'VMS') {
    print "SKIPPED\n# $^O, can't kill() to raise()\n"; exit;
}
$|=1;
$SIG{"INT"} = "fred"; kill "INT",$$;
EXPECT

########
# mg.c
use warnings 'signal' ;
if ($^O eq 'MSWin32' || $^O eq 'NetWare' || $^O eq 'VMS') {
    print "SKIPPED\n# $^O, can't kill() to raise()\n"; exit;
}
$|=1;
$SIG{__WARN__} = sub { warn shift =~ s/\0/\\0/rugs };
$SIG{"INT"} = "fr\0d"; kill "INT",$$;
EXPECT
SIGINT handler "fr\0d" not defined.
########
# mg.c
use warnings 'signal' ;
use open ":std", ":utf8";
use utf8;
if ($^O eq 'MSWin32' || $^O eq 'NetWare' || $^O eq 'VMS') {
    print "SKIPPED\n# $^O, can't kill() to raise()\n"; exit;
}
$|=1;
$SIG{"INT"} = "프레드"; kill "INT",$$;
EXPECT
SIGINT handler "프레드" not defined.
########
# mg.c
use warnings 'uninitialized';
'foo' =~ /(foo)/;
oct $3;
EXPECT
Use of uninitialized value $3 in oct at - line 4.
########
# mg.c
use warnings 'uninitialized';
oct $3;
EXPECT
Use of uninitialized value $3 in oct at - line 3.
########
# mg.c
use warnings 'uninitialized';
$ENV{FOO} = undef; # should not warn
EXPECT