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• Defun

Set-bogus-defun-hints-ok

Allow unnecessary (xargs :hints ...) and measures.

General Forms:
(set-bogus-defun-hints-ok t)
(set-bogus-defun-hints-ok nil)
(set-bogus-defun-hints-ok :warn)

By default, ACL2 causes an error when either of the keywords :hints or :measure is supplied in an xargs declare form for a :logic mode non-recursive definition. That restriction also applies to :program mode definitions in the case of :measure. This behavior can be defeated with (set-bogus-defun-hints-ok t), or if you still want to see a warning in such cases, (set-bogus-defun-hints-ok :warn). This utility should perhaps be called set-bogus-defun-hints-and-measures-ok, but we retain its original name (from when it did not deal with bogus measures).