Tilly: 
# And for something completely different...
sub foo {
  if (1 != @_) {
    return map $foo($_), @_;
  }
  # body of foo here.
  return $whatever;
}

[download]
Abigail-II:
Why the test on the number of arguments, and the recursion? Wouldn't the following be equivalent?: 
sub foo {
    map {
        # body of foo here.
        $whatever
    } @_
}

[download]
Tilly:
Answering the last question first, no that isn't equivalent to just have a map since a map in scalar context coerces like an array does - it tells you how many elements that you have, not what any of them are.
The original function also has a map in scalar context problem. Something like this is probably what you want: 
sub foo {
    (map {
        # body of foo here.
        $whatever
     } @_)[0..$#_];
}

[download]
Though I this may be clearer: 
sub foo {
   my @ret = map {
      # body of foo here
      $whatever;
   } @_;
   @ret[0..$#ret];
}

[download]

In reply to Re: Re: Re: What should be returned in scalar context? by ysth
in thread What should be returned in scalar context? by tilly

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