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Which is faster: while(1) or while(2)?

... 681 Both loops are infinite, but we can see which one takes more instructions/resources per iterati...
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C Macro definition to determine big endian or little endian machine?

...32_H #include <limits.h> #include <stdint.h> #if CHAR_BIT != 8 #error "unsupported char size" #endif enum { O32_LITTLE_ENDIAN = 0x03020100ul, O32_BIG_ENDIAN = 0x00010203ul, O32_PDP_ENDIAN = 0x01000302ul, /* DEC PDP-11 (aka ENDIAN_LITTLE_WORD) */ O32_HONEYWELL_ENDI...
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How do .gitignore exclusion rules actually work?

... answered Jun 8 '10 at 23:00 ChrisChris 9,86611 gold badge3535 silver badges4545 bronze badges ...
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How to convert byte array to string and vice versa?

... a String using: byte[] bytes = {...} String str = new String(bytes, "UTF-8"); // for UTF-8 encoding There are a bunch of encodings you can use, look at the Charset class in the Sun javadocs. share | ...
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WKWebView not loading local files under iOS 8

For previous iOS 8 betas, load a local web app (in Bundle) and it works fine for both UIWebView and WKWebView , and I even ported a web game using the new WKWebView API. ...
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搭建高可用mongodb集群(四)—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...好了,安装软件! 1、准备机器,IP分别设置为: 192.168.0.136、192.168.0.137、192.168.0.138。 2、分别在每台机器上建立mongodb分片对应测试文件夹。 #存放mongodb数据文件 mkdir -p /data/mongodbtest #进入mongodb文件夹 cd /data/mongodbtest ...
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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术

...对,可以这么写: struct foo { int x[2] __attribute__ ((aligned (8))); }; 如上所述,你可以手动指定对齐的格式,同样,你也可以使用默认的对齐方式。如果aligned后面不紧跟一个指定的数字值,那么编译器将依据你的目标机器 情况使用...
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C++ : why bool is 8 bits long?

In C++, I'm wondering why the bool type is 8 bits long (on my system), where only one bit is enough to hold the boolean value ? ...
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How to select the last record of a table in SQL?

... answered Mar 4 '11 at 8:48 Adriaan StanderAdriaan Stander 146k2626 gold badges261261 silver badges272272 bronze badges ...
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How to change Android version and code version number?

... answered Mar 8 '14 at 20:35 Ajay SAjay S 44.5k2020 gold badges8383 silver badges103103 bronze badges ...