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• Charset-p

Code-in-charset-p

(code-in-charset-p code set) determines if the character whose code is code is a member of the character set set.

Signature

(code-in-charset-p code set) → *

Arguments

set — Guard (charset-p set).

Typically there's no reason to use this. But if you already have the character code available for some reason, this may be slightly more efficient than turning it back into a character and then calling char-in-charset-p.

Definitions and Theorems

Function: code-in-charset-p$inline

(defun code-in-charset-p$inline (code set)
  (declare (type (unsigned-byte 8) code))
  (declare (xargs :guard (charset-p set)))
  (let ((acl2::__function__ 'code-in-charset-p))
    (declare (ignorable acl2::__function__))
    (mbe :logic (char-in-charset-p (code-char code) set)
         :exec (logbitp code set))))