CLHS: Section 3.5.1.3

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## 3.5.1.3 Too Many Arguments

It is not permitted to supply too many arguments to a function. Too many arguments means more arguments than the number of required parameters plus the number of optional parameters; however, if the function uses `&rest` or `&key`, it is not possible for it to receive too many arguments.

If this situation occurs 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 issue, not part of the specification, applies to this section:

- ARGUMENT-MISMATCH-ERROR-MOON:FIX

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