6 Type Reference

:signed

FLI type descriptor

Summary

Converts between a Lisp integer and a foreign signed integer.

Package

fli

Syntax

:signed &optional integer-type

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

Arguments

integer-type: The type of the signed integer.

Description

The:signed type converts between a Lisp integer and a foreign signed integer. The optional integer-type argument specifies other kinds of signed integer types. See Table 6.2 for a comparison between Lisp and C signed types.

Table 6.2 A comparison of Lisp and C signed types
Lisp type	FLI type	C type
`integer`	`:signed`	`signed int`
`fixnum`	`:signed :byte`	`signed char`
`fixnum`	`:signed :char`	`signed char`
`fixnum`	`:signed :short`	`signed short`
`integer`	`:signed :int`	`signed int`
`integer`	`:signed :long`	`signed long`
`fixnum`	`:signed :short :int`	`signed short`
`integer`	`:signed :long :int`	`signed long`

See Also

:unsigned