Comments on: 巧妙的位操作 http://zeal.haliluya.org/blog/2006/09/13/magic-bit-operation/ Above Us Only Sky Sun, 07 Sep 2008 12:20:50 +0000 http://wordpress.org/?v=2.6 By: navyant http://zeal.haliluya.org/blog/2006/09/13/magic-bit-operation/#comment-1219 navyant Fri, 15 Sep 2006 04:41:39 +0000 http://zeal.haliluya.org/blog/2006/09/13/%e5%b7%a7%e5%a6%99%e7%9a%84%e4%bd%8d%e6%93%8d%e4%bd%9c/#comment-1219 对 对

]]> By: zeal http://zeal.haliluya.org/blog/2006/09/13/magic-bit-operation/#comment-1215 zeal Thu, 14 Sep 2006 23:06:04 +0000 http://zeal.haliluya.org/blog/2006/09/13/%e5%b7%a7%e5%a6%99%e7%9a%84%e4%bd%8d%e6%93%8d%e4%bd%9c/#comment-1215 如果假设1为true, 0为false的话，完整的solution，是不是: result = num & & ！(num & (num - 1)) 如果假设1为true, 0为false的话，完整的solution，是不是:

result = num & & ！(num & (num - 1))

]]> By: zeal http://zeal.haliluya.org/blog/2006/09/13/magic-bit-operation/#comment-1214 zeal Thu, 14 Sep 2006 22:59:53 +0000 http://zeal.haliluya.org/blog/2006/09/13/%e5%b7%a7%e5%a6%99%e7%9a%84%e4%bd%8d%e6%93%8d%e4%bd%9c/#comment-1214 这个，我今天想到了，还没来得及写上去 这个，我今天想到了，还没来得及写上去

]]> By: navyant http://zeal.haliluya.org/blog/2006/09/13/magic-bit-operation/#comment-1213 navyant Thu, 14 Sep 2006 21:56:35 +0000 http://zeal.haliluya.org/blog/2006/09/13/%e5%b7%a7%e5%a6%99%e7%9a%84%e4%bd%8d%e6%93%8d%e4%bd%9c/#comment-1213 2的次蜜，有更简单的办法啦 num & (num - 1) 呵呵，看来simplescalar比你熟一点 2的次蜜，有更简单的办法啦
num & (num - 1)
呵呵，看来simplescalar比你熟一点

]]> By: yj http://zeal.haliluya.org/blog/2006/09/13/magic-bit-operation/#comment-1206 yj Thu, 14 Sep 2006 03:23:01 +0000 http://zeal.haliluya.org/blog/2006/09/13/%e5%b7%a7%e5%a6%99%e7%9a%84%e4%bd%8d%e6%93%8d%e4%bd%9c/#comment-1206 天书 天书

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