util.c AOK
 
     Illegal octal digit ignored 
	my $a = oct "029" ;

     Illegal hex digit ignored 
	my $a = hex "0xv9" ;


__END__
# util.c
use warning 'octal' ;
my $a = oct "029" ;
EXPECT
Illegal octal digit ignored at - line 3.
########
# util.c
use warning 'unsafe' ;
*a =  hex "0xv9" ;
EXPECT
Illegal hex digit ignored at - line 3.