list-length-1-pGBBopen Toolslist-length>list-length-2-pGoTo Top

list-length-2-p   list => boolean[Function]

Purpose
Fast length = 2 test of a list.

Package   :gbbopen-tools

Module   :gbbopen-tools

Arguments and values

list     A proper list or a dotted list
boolean     A generalized boolean

Returns
True if list has length 2; nil otherwise.

See also
    list-length-1-p
    list-length>
    list-length>1
    list-length>2

Examples

  > (list-length-2-p '(a b))
  t
  > (list-length-2-p '(a b c))
  nil
  > (list-length-2-p '(a))
  nil
  > (list-length-2-p '(a b . c))
  nil
  >


The GBBopen Project


list-length-1-pGBBopen Toolslist-length>list-length-2-pGoTo Top