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ANSI Common Lisp  14 Conses 14.2 Dictionary of Conses
- Class Precedence List:
-
cons,
list,
sequence,
t
- Description:
-
A cons is a compound object having two components,
called the car and cdr. These form a dotted pair.
Each component can be any object.
- Compound Type Specifier Kind:
-
Specializing.
- Compound Type Specifier Syntax:
-
(cons [car-typespec [cdr-typespec]])
- Compound Type Specifier Arguments:
-
car-typespec - a type specifier,
or the symbol *.
The default is the symbol *.
cdr-typespec - a type specifier,
or the symbol *.
The default is the symbol *.
- Compound Type Specifier Description:
-
This denotes the set of conses
whose car is constrained to be of type car-typespec and
whose cdr is constrained to be of type cdr-typespec.
(If either car-typespec or cdr-typespec is *,
it is as if the type t had been denoted.)
- See Also:
-
Section 2.4.1 Left-Parenthesis,
Section 22.1.3.5 Printing Lists and Conses
- Allegro CL Implementation Details:
-
None.
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