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multiple-value-prog1

multiple-value-prog1 Special Operator

Syntax:

multiple-value-prog1 first-form {form}* ! first-form-results

Arguments and Values:

first-form—a form; evaluated as described below.

form—a form; evaluated as described below.

first-form-results—the values resulting from the evaluation of first-form.

Description:

multiple-value-prog1 evaluates first-form and saves all the values produced by that form. It then evaluates each form from left to right, discarding their values.

Examples:

(setq temp ’(1 2 3)) *!* (1 2 3) 
(multiple-value-prog1 
    (values-list temp) 
  (setq temp nil) 
  (values-list temp)) *!* 1, 2, 3

See Also:

prog1 multiple-value-setq

Expanded Reference: multiple-value-prog1​

tip

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(multiple-value-prog1 )