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| 6 Iteration 6.1 The LOOP Facility 6.1.1 Overview of the Loop Facility 6.1.1.5 Summary of Loop Clauses ### 6.1.1.5.4 Summary of Unconditional Execution Clauses The `do` (or `doing`) construct evaluates all forms in its clause. The `return` construct takes one form. Any values returned by the form are immediately returned by the loop form. It is equivalent to the clause `do (return-from block-name value)`, where block-name is the name specified in a `named` clause, or nil if there is no `named` clause. For more information, see Section 6.1.5 Unconditional Execution Clauses.

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