dave mitchell uaufmiabyncom wed nov 07 2007 080209pm 0500 jerry hedden wrote 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 undef value generates warning due bug variable naming code ie bit determines xxx use uninitialized value xxx printing warning sometimes cause segfault depending pad alignments etc agreed segfault thing thats buggy bug variable naming code never really learn swear learn drive thu 07 aug 2008 182614 0000 perl 47233 core dump caused goto