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• Mach-o-header

Mach-o-header->magic

Get the magic field from a mach-o-header.

Signature

(mach-o-header->magic x) → magic

Arguments

x — Guard (mach-o-header-p x).

Returns

magic — Type (natp magic).

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: mach-o-header->magic$inline

(defun mach-o-header->magic$inline (x)
  (declare (xargs :guard (mach-o-header-p x)))
  (declare (xargs :guard t))
  (let ((__function__ 'mach-o-header->magic))
    (declare (ignorable __function__))
    (mbe :logic
         (b* ((x (and t x)))
           (nfix (cdr (std::da-nth 0 x))))
         :exec (cdr (std::da-nth 0 x)))))

Theorem: natp-of-mach-o-header->magic

(defthm natp-of-mach-o-header->magic
  (b* ((magic (mach-o-header->magic$inline x)))
    (natp magic))
  :rule-classes :rewrite)

Theorem: mach-o-header->magic$inline-of-mach-o-header-fix-x

(defthm mach-o-header->magic$inline-of-mach-o-header-fix-x
  (equal (mach-o-header->magic$inline (mach-o-header-fix x))
         (mach-o-header->magic$inline x)))

Theorem: mach-o-header->magic$inline-mach-o-header-equiv-congruence-on-x

(defthm
    mach-o-header->magic$inline-mach-o-header-equiv-congruence-on-x
  (implies (mach-o-header-equiv x x-equiv)
           (equal (mach-o-header->magic$inline x)
                  (mach-o-header->magic$inline x-equiv)))
  :rule-classes :congruence)