text_combined: ben morrow xupmorrowmeuk quoth nplydevelophelpcom tony cook wed nov 07 2007 094807pm 0500 jerry hedden wrote passing undef subroutine permitted passing undef universalisa produce warning seems bug universalisa uses values supply test attempted print value would warn since universalisa xs undef warning displayed calling context easy would change warning use uninitialized value xs code appropriate circumstances would give impression call warned ben thu 07 aug 2008 184613 0000 perl 47233 core dump caused goto