Major Section: ARRAYS
Example Form: (aref1 'delta1 a (+ i k)) General Form: (aref1 name alist index)where
name
is a symbol, alist
is a 1-dimensional array and index
is a legal index into alist
. This function returns the value
associated with index
in alist
, or else the default value of the
array. See arrays for details.This function executes in virtually constant time if alist
is in
fact the ``semantic value'' associated with name
(see arrays).
When it is not, aref1
must do a linear search through alist
. In
that case the correct answer is returned but a slow array comment is
printed to the comment window. See slow-array-warning.