>sub rotate { unshift @_, splice @_, shift @_; return @_ }
Curious. Here is one of my routines that rotates a vector (an array) either
foward or reverse, any number of elements. Seems like we had a similar
approach I just encapuslated with a bunch of logic and control..
# rotate elements around, arg is n and array
sub rotate
{return () unless $_[1];
die 'APL: rotate called with improper args' unless $_[0] && $_[1];
my $n=$_[0];
my @l=@{$_[1]};
my ($i, @lx) = (0);
for ($i==0; $i<abs $n; $i++)
{$lx=shift @l if $n>0;
$lx=pop @l if $n<0;
push @l,$lx if $n>0;
unshift @l,$lx if $n<0;
}
return \@l;
}
* JAPC *
Some girls like DIAMONDS, but I like PERL.
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