{"provider_name":"Hatena Blog","title":"\u30d3\u30c3\u30c8\u30dc\u30fc\u30c9\u306e\u9ad8\u901f\u5316","author_url":"https://blog.hatena.ne.jp/TadaoYamaoka/","blog_url":"https://tadaoyamaoka.hatenablog.com/","categories":["\u56f2\u7881\u30d7\u30ed\u30b0\u30e9\u30e0"],"author_name":"TadaoYamaoka","published":"2016-04-30 22:16:03","width":"100%","description":"\u3053\u3053\u306e\u8a18\u4e8b\u306b\u3001_BitScanForward64\u3092\u4f7f\u3046\u5834\u5408\u3001\u30d2\u30c3\u30c8\u3057\u305f\u30d3\u30c3\u30c8\u30920\u306b\u3059\u308b\u306e\u306b\u3001 n &= n - 1; \u3068\u3059\u308b\u3068\u3088\u3044\u3068\u66f8\u304b\u308c\u3066\u3044\u305f\u306e\u3067\u8a66\u3057\u3066\u307f\u305f\u3002\u73fe\u5728\u3001\u30d3\u30c3\u30c8\u30920\u306b\u3059\u308b\u306e\u306b\u3001 _bittestandreset64(&n, i); \u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002\u8a18\u4e8b\u3067\u306f\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b1\u3092\u30b7\u30d5\u30c8\u3057\u3066\u6f14\u7b97\u3057\u305f\u5834\u5408\u3068\u306e\u6bd4\u8f03\u306a\u306e\u3067\u3001_bittestandreset64\u3092\u4f7f\u3046\u5834\u5408\u306f\u5dee\u306f\u306a\u3044\u3068\u4e88\u6e2c\u3057\u305f\u3002 n ^= 1 << i; \u6e2c\u5b9a\u7d50\u679c\u3001\u308f\u305a\u304b\u306a\u304c\u3089\u9ad8\u901f\u5316\u3059\u308b\u7b87\u6240\u304c\u3042\u3063\u305f\u300219\u8def\u300110000\u30d7\u30ec\u30a4\u30a2\u30a6\u30c8\u306e1\u624b\u76ee\u3067\u3001\u5e73\u57471219ms\u304b\u30891188ms\u306b\u306a\u3063\u305f\u3002 \u7d042.6%\u306e\u9ad8\u901f\u5316\u3067\u3042\u308b\u3002\u4f55\u304b\u6240\u304b_bittes\u2026","url":"https://tadaoyamaoka.hatenablog.com/entry/2016/04/30/221603","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftadaoyamaoka.hatenablog.com%2Fentry%2F2016%2F04%2F30%2F221603\" title=\"\u30d3\u30c3\u30c8\u30dc\u30fc\u30c9\u306e\u9ad8\u901f\u5316 - TadaoYamaoka\u306e\u958b\u767a\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"TadaoYamaoka\u306e\u958b\u767a\u65e5\u8a18","type":"rich","height":"190","image_url":null,"provider_url":"https://hatena.blog","version":"1.0"}