jerry hedden drbcqzxlcpanorg jerry hedden wrote dont think following doesnt produce warnings seg fault perl e x universalisax undef however following perl x universalisax undef produces use uninitialized value subroutine entry e line 1 chromatic wrote appear proven enabling warnings disables undef warning may additional point example subtle understand though sorry guess cut much previous message question whether undef causing seg vault demonstrated case added part warning seemed inappropriate passing undef subroutine okay thu 07 aug 2008 132736 0500 perl 47233 core dump caused goto