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Multiple­Values­Cowan

cowan
2012-11-23 13:49:44
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Multiple values procedures

(call-with-all-values producer ... consumer)

Invoke the producers in arbitrary order and pass all values returned by them in the given order to consumer. This extends call-with-values by allowing more than one producer. Equivalent to Common Lisp's multiple-value-call.

(values-list list)

Returns the elements of the list as multiple values. Equivalent to Common Lisp's values-list.

Multiple values syntax

(set!-values (lambda-list) expression)

Assigns the values returned by expression to the variables in lambda-list. Returns an undefined value. Equivalent to Common Lisp's multiple-variable-setq.

Is this module even worth having any more? Most of its former content is part of WG1 now.