2017q3 Homework(clz)
===
[github](https://github.com/hfming225/clz-tests)

## **開發環境**

### OS:ubuntu 16.04 LTS
`$ lscpu`

Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 8
On-line CPU(s) list: 0-7
Thread(s) per core: 2
Core(s) per socket: 4
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 94
Model name: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
Stepping: 3
CPU MHz: 799.987
CPU max MHz: 4000.0000
CPU min MHz: 800.0000
BogoMIPS: 6816.00
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 256K
L3 cache: 8192K
NUMA node0 CPU(s): 0-7
## 量測結果
* recursive version
* 測試結果
* iteration version

* 測試結果

* binary search technique

* 測試結果
binary search 在輸入接近10000時，會產生明顯抖動的現象發生!

* byte-shift version

* 測試結果

* Harley’s algorithm

* 測試結果

## 測試結果比較


## 參考資料

[gnu Makefile 使用手冊](https://www.gnu.org/software/make/manual/html_node/Implicit-Variables.html#Implicit-Variables)
[gcc與Makefile使用筆記](http://jayextmemo.blogspot.tw/2015/01/linux-gcc-makefile.html)