FLI type descriptor

Summary

Converts between a Lisp integer and a foreign unsigned integer.

Package

fli

Syntax

:unsigned &optional integer-type

integer-type
 ::= :byte | :char | :short | :int |

              :long | :long :int | :short :int

Arguments

integer-type

The type of the unsigned integer.

Description

The :unsigned type converts between a Lisp integer and a foreign unsigned integer. The optional integer-type argument specifies other kinds of unsigned integer types. See Table A comparison of Lisp and C unsigned types for a comparison between Lisp and C unsigned types.

A comparison of Lisp and C unsigned types

Lisp type	FLI type	C type
integer	:unsigned	unsigned int
fixnum	:unsigned :byte	unsigned char
fixnum	:unsigned :char	unsigned char
fixnum	:unsigned :short	unsigned short
integer	:unsigned :int	unsigned int
integer	:unsigned :long	unsigned long
fixnum	:unsigned :short :int	unsigned short
integer	:unsigned :long :int	unsigned long

See also

cast-integer
:signed