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int->hexstr and hexstr->int

// description of your code here

(set 'hextab "0123456789abcdef")

(define (int->hexstr num)
  (set 'hexstr "")
  (for (i 0 63 4)
       (push (hextab (& (>> num i) 0xf)) hexstr))
  (append "0x" hexstr))

(define (hexstr->int str)
  (set 'num 0)
  (set 'str (pop str 2))
  (for (i 0 15 1)
       (| (<< (find (str i) hextab) (* 4 i)) num)))
to by frontera000 on Sat Oct 14 05:07:04 -0400 2006

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