ToC
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Allegro CL
ANSI Common Lisp
12 Numbers
12.2 Dictionary of Numbers
12.2.61 boole-1, boole-2, boole-and, boole-andc1, boole-andc2, boole-c1, boole-c2, boole-clr, boole-eqv, boole-ior, boole-nand, boole-nor, boole-orc1, boole-orc2, boole-set, boole-xor
Constant Variable
Constant Value:
The identity and nature of the
values
of each of these
variables
is
implementation-dependent
, except that it must be
distinct
from each of the
values
of the others, and it must be a valid first
argument
to the
function
boole
.
Description:
Each of these
constants
has a
value
which is one of the sixteen possible
bit-wise logical operation specifiers
.
Examples:
(boole boole-ior 1 16)
17 (boole boole-and -2 5)
4 (boole boole-eqv 17 15)
-31
See Also:
boole
Allegro CL Implementation Details:
None.
© Franz Inc. 1998-2012
- File last updated 02-24-2012