(setq hasMilliSecs (/= (getvar "MILLISECS") nil))
(setvar "LOGFILEMODE" 0)
(vl-load-com)

(if (and (not vle-vector-sub) (findfile "vle-extension.lsp")) (load "vle-extension.lsp"))

(defun emul-vector-sub ( vec1 vec2 / z1 z2 )
  (if (or (/= (type vec1) 'LIST) (not (car vec1)) (not (cadr vec1))) (exit))
  (if (or (/= (type vec2) 'LIST) (not (car vec2)) (not (cadr vec2))) (exit))

  (setq z1 (caddr vec1) z2 (caddr vec2))
  (if (not z1) (setq z1 0.0))
  (if (not z2) (setq z2 0.0))

  (list (- (car vec1) (car vec2)) (- (cadr vec1) (cadr vec2)) (- z1 z2))
)

(defun t_vle_vector_sub ( count fptr / v2d v3d time1 time2 time3 time4 )

  ;;--- build data list
  (setq v2d '(22.0 33.0) v3d '(22.0 33.0 44.0))

  ;;--- now run test : NORMAL
  (setq time1 (getvar "MILLISECS"))
  (if (not time1) (setq time1 (getvar "TDUSRTIMER")))
  (if (not time1) (setq time1 0.0))

  (repeat (* count count)
    (emul-vector-sub v2d v3d)
    (emul-vector-sub v3d v2d)
  )

  (setq time2 (getvar "MILLISECS"))
  (if (not time2) (setq time2 (getvar "TDUSRTIMER")))
  (if (not time2) (setq time2 0.0))

  ;;--- now run test : VLE
  (setq time3 (getvar "MILLISECS"))
  (if (not time3) (setq time3 (getvar "TDUSRTIMER")))
  (if (not time3) (setq time3 0.0))

  (repeat (* count count)
    (vle-vector-sub v2d v3d)
    (vle-vector-sub v3d v2d)
  )

  (setq time4 (getvar "MILLISECS"))
  (if (not time4) (setq time4 (getvar "TDUSRTIMER")))
  (if (not time4) (setq time4 0.0))

  ;;--- test results
  (setq bench$secsNorm (if hasMilliSecs (* 0.001 (- time2 time1)) (* 86400.0 (- time2 time1))))
  (setq bench$secsFast (if hasMilliSecs (* 0.001 (- time4 time3)) (* 86400.0 (- time4 time3))))
  (setq bench$seconds (+ bench$secsNorm bench$secsFast))

  (princ (strcat "* (Standard) : " (rtos bench$secsNorm 2 3) "  VLE-VECTOR-SUB : " (rtos bench$secsFast 2 3) "\n"))
  (if fptr
    (princ (strcat "* (Standard) : " (rtos bench$secsNorm 2 3) "  VLE-VECTOR-SUB : " (rtos bench$secsFast 2 3) "\n") fptr)
  )

  bench$seconds
)

;; to increase/decrease the number of bench loops : > 1 increase < 1 decrease
(if (not $benchcyclesfactor) (setq $benchcyclesfactor 1))

;; to run this loaded test manually
(defun C:Run ()
  (setvar "cmdecho" 0)
  (print)
  (t_vle_vector_sub (* 300 $benchcyclesfactor) nil)
  (setvar "cmdecho" 1)
  (princ)
)
