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| ANSI Common Lisp 4 Types and Classes 4.4 Dictionary of Types and Classes
4.4.22 values | Type Specifier
Compound Type Specifier Kind: Specializing. Compound Type Specifier Syntax: `(values value-typespec)` value-typespec::= {typespec}* `[``&optional` {typespec}*`]` `[``&rest` typespec`]` `[`&allow-other-keys`]` Compound Type Specifier Arguments: typespec - a type specifier. Compound Type Specifier Description: This type specifier can be used only as the value-type in a function type specifier or a the special form. It is used to specify individual types when multiple values are involved. The &optional and &rest markers can appear in the value-type list; they indicate the parameter list of a function that, when given to multiple-value-call along with the values, would correctly receive those values. The symbol * may not be among the value-types. The symbol values is not valid as a type specifier; and, specifically, it is not an abbreviation for `(values)`. Allegro CL Implementation Details: None.

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