Ex1: @_ = map{ $_ += 1; }qw/5 2 7 0 7 7/; Exception: Modification of a read-only value attempted at 1.pl line 1 Ex2: @_ = map{ $_ += 1; }(5,2,7,0,7,7); Exception: Modification of a read-only value attempted at 1.pl line 1 Ex3: @_ = map{ $_ += 1; }1..6; All OK ??? P.S. >perl -v This is perl, v5.6.0 built for MSWin32-x86-multi-thread (with 1 registered patch, see perl -V for more detail)Thread Next