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3.5.1.7 Destructuring Mismatch

When matching a destructuring lambda list against a form, the pattern and the form must have compatible tree structure, as described in Section 3.4.4 (Macro Lambda Lists).

Otherwise, in a safe call, an error of type program-error must be signaled; and in an unsafe call the situation has undefined consequences.


The following X3J13 cleanup issues, not part of the specification, apply to this section:


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