diff options
Diffstat (limited to 'crawl-ref/source/util/lua/test/fib.lua')
| -rw-r--r-- | crawl-ref/source/util/lua/test/fib.lua | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/crawl-ref/source/util/lua/test/fib.lua b/crawl-ref/source/util/lua/test/fib.lua deleted file mode 100644 index 97a921b132..0000000000 --- a/crawl-ref/source/util/lua/test/fib.lua +++ /dev/null @@ -1,40 +0,0 @@ --- fibonacci function with cache - --- very inefficient fibonacci function -function fib(n) - N=N+1 - if n<2 then - return n - else - return fib(n-1)+fib(n-2) - end -end - --- a general-purpose value cache -function cache(f) - local c={} - return function (x) - local y=c[x] - if not y then - y=f(x) - c[x]=y - end - return y - end -end - --- run and time it -function test(s,f) - N=0 - local c=os.clock() - local v=f(n) - local t=os.clock()-c - print(s,n,v,t,N) -end - -n=arg[1] or 24 -- for other values, do lua fib.lua XX -n=tonumber(n) -print("","n","value","time","evals") -test("plain",fib) -fib=cache(fib) -test("cached",fib) |