[quote=DS,13.10.2003, 18:15]Ich hab noch nie getestet, was passiert, wenn man einen Array mit defined testet, also hab' ich das mal nachgeholt...[/quote]
aus perldoc -f defined:
              Use of "defined" on aggregates (hashes and arrays)
              is deprecated.  It used to report whether memory
              for that aggregate has ever been allocated.  This
              behavior may disappear in future versions of Perl.
              You should instead use a simple test for size:

                  if (@an_array) { print "has array elements\n" }
                  if (%a_hash)   { print "has hash members\n"   }