Re: [FWP] Constants as array refs

[Uri Guttman <uri@sysarch.com>]

>>>>> "BC" == Bernie Cosell <bernie@fantasyfarm.com> writes:

  BC> I don't understand...  I didn't think there was a semantic difference 
  BC> between:
  BC>    a()
  BC> and
  BC>    &a
  BC> but apparently there is..  ????

perldoc perlsub

     To call subroutines:

         NAME(LIST);    # & is optional with parentheses.
         NAME LIST;     # Parentheses optional if predeclared/imported.
         &NAME;         # Makes current @_ visible to called subroutine.

....

     Functions with a prototype of () are potential candidates
     for inlining.  If the result after optimization and constant
     folding is either a constant or a lexically-scoped scalar
     which has no other references, then it will be used in place
     of function calls made without & or do. Calls made using &
     or do are never inlined.  (See constant.pm for an easy way
     to declare most constants.)


uri

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