~tim/lisp200: Allow passing upper bound into fib script

53a3c3b9ca8bedeaba16ba9eb5d2f830666a3420 — Tim Morgan 1 year, 2 months ago f4f7ac7 master

Allow passing upper bound into fib script

patch browse

2 files changed, 11 insertions(+), 1 deletions(-)

M core.lisp
M fib.lisp

M core.lisp => core.lisp +8 -0

@@ 111,6 111,14 @@
                      (f i (first l))
                      (mi f (rest l) (+ i 1) mi)))))))
 
+(def string->number
+     (fn [s]
+         (. s "to_i")))
+
+(def number->string
+     (fn [s]
+         (. s "to_s")))
+
 (def str
      (fn [& args]
          (if (empty? args)

M fib.lisp => fib.lisp +3 -1

@@ 6,5 6,7 @@
           (fib (- n 1))
           (fib (- n 2))))))
 
+(def upper (string->number (if (> (length ARGV) 1) (nth ARGV 1) 10)))
+
 (each (fn [n] (prn (fib n)))
-      '(1 2 3 4 5 6 7 8 9 10))
+      (range 1 (+ 1 upper)))