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author | Lua Team <team@lua.org> | 2010-05-18 12:00:00 +0000 |
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committer | repogen <> | 2010-05-18 12:00:00 +0000 |
commit | f970e1e83ed07bbcf8a20fc1a95f91a0a2aae620 (patch) | |
tree | 005b26e8ebf7553ba5c7a66700866be3e42443d0 /test/fib.lua | |
parent | ecd48c2901f08a88db32139b97c35c59eba1f19e (diff) | |
download | lua-github-5.2.0-work3.tar.gz |
Lua 5.2.0-work35.2.0-work3
Diffstat (limited to 'test/fib.lua')
-rw-r--r-- | test/fib.lua | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/test/fib.lua b/test/fib.lua deleted file mode 100644 index 97a921b1..00000000 --- a/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) |