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)

[download]
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.

[download]
Yet another time, I stepped through with 'n' and it worked fine.

Potentially a bug in perl?

In reply to Re: Re (tilly) 1: (GOLF) Randomizing lines by Cirollo
in thread (GOLF) Randomizing lines by CheeseLord

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