note ambrus <P>After abigail's post, it's clear how $# works. Perl calls the builtin sprintf with a single floating point argument, and the resulting text is the string representation of the number (if $# is set). You can even decompose a double to two ints by setting $# to "%x/%x". This explains the strange strange phenomena that setting $# to a stupid value causes. <P>However, as an interesting consequence you can still segfault perl with some code like <code>perl -we '$#="%s\n"; print exp 1;'</code> or <code>perl -we '$#="%n\n"; print exp 1;'</code> 330691 330691