		Search-engine friendly clone of the ACL2 documentation.

Truth4arr

Set-truth4

Modify the nth element of the truth4arr array.

In the execution this is an array write, but the logical definition is just a thin wrapper for update-nth:

Function: update-truth4s$ai

(defun update-truth4s$ai (stobjs::i stobjs::v truth4arr$a)
 (declare
   (xargs
        :guard (and (truth4arr$ap truth4arr$a)
                    (integerp stobjs::i)
                    (<= 0 stobjs::i)
                    (< stobjs::i
                       (truth4s$a-length truth4arr$a))
                    (truth4-p stobjs::v)
                    (stobjs::typep$ stobjs::v (unsigned-byte 16)))))
 (ec-call (update-nth stobjs::i (truth4-fix stobjs::v)
                      truth4arr$a)))