map

map Function

Summary

Extends the function map to allow it to take any type specifier.

Package

common-lisp

Signature

map result-type function &rest {sequence}* => result

Arguments

`result-type`⇩	A sequence type specifier or `nil`.
`function`⇩	A function designator.
`sequence`⇩	A sequence.

Values

result⇩

A sequence.

Description

The function map has been extended to take any Common Lisp type. result will be of type result-type unless this is not possible, in which case a type-error is signaled.

function and sequence are used as specified by ANSI Common Lisp.