http://www.perlmonks.org?node_id=99985


in reply to Re (tilly) 1: (GOLF) Randomizing lines
in thread (GOLF) Randomizing lines

That's really odd. I tried running it in the debugger:
$ perl -d -e'print splice@l,rand@l,1for@l=<>' < test Default die handler restored. Loading DB routines from perl5db.pl version 1.07 Editor support available. Enter h or `h h' for help, or `man perldebug' for more help. main::(-e:1): print splice@l,rand@l,1for@l=<> DB<1> c 4 5 1 3 Attempt to free unreferenced scalar at -e line 1, <> line 5. Bus error (core dumped)
Another time (while stepping through with 'n'), I got this error:
Attempt to free unreferenced scalar at /usr/local/perl/lib/5.6/perl5db +.pl line 1447, <IN> line 7.
Yet another time, I stepped through with 'n' and it worked fine.

Potentially a bug in perl?