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• Vl-echar-p

Vl-echarpack-p

Packed up LINE, COL, and CHAR-CODE in a single fixnum.

Signature

(vl-echarpack-p x) → *

Definitions and Theorems

Function: vl-echarpack-p

(defun vl-echarpack-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'vl-echarpack-p))
    (declare (ignorable __function__))
    (if (integerp x)
        (and (<= 0 x)
             (< 0 (ash x -30))
             (< x (expt 2 60)))
      (and (consp x)
           (consp (car x))
           (posp (caar x))
           (natp (cdar x))
           (unsigned-byte-p 8 (cdr x))))))

Subtopics

Vl-echarpack

Vl-echarpack->code

Vl-echarpack->col

Vl-echarpack->line