		Search-engine friendly clone of the ACL2 documentation.

Representation-of-integer-conversions

Sllong-from-schar

Convert from type signed char to type signed long long.

Signature
(sllong-from-schar x) → result
Arguments: x — Guard (scharp x).
Returns: result — Type (sllongp result).

Definitions and Theorems

Function: sllong-from-schar

(defun sllong-from-schar (x)
  (declare (xargs :guard (scharp x)))
  (let ((__function__ 'sllong-from-schar))
    (declare (ignorable __function__))
    (sllong-from-integer (integer-from-schar x))))

Theorem: sllongp-of-sllong-from-schar

(defthm sllongp-of-sllong-from-schar
  (b* ((result (sllong-from-schar x)))
    (sllongp result))
  :rule-classes :rewrite)

Theorem: sllong-from-schar-of-schar-fix-x

(defthm sllong-from-schar-of-schar-fix-x
  (equal (sllong-from-schar (schar-fix x))
         (sllong-from-schar x)))

Theorem: sllong-from-schar-schar-equiv-congruence-on-x

(defthm sllong-from-schar-schar-equiv-congruence-on-x
  (implies (schar-equiv x x-equiv)
           (equal (sllong-from-schar x)
                  (sllong-from-schar x-equiv)))
  :rule-classes :congruence)