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Why do function pointer definitions work with any number of ampersands '&' or asterisks '*'?
... to itself and that pointer is assigned to p1_foo.
The unary &, when applied to a function, yields a pointer to the function, just like it yields the address of an object when it is applied to an object. For pointers to ordinary functions, it is always redundant because of the implicit functio...
Why JavaScript rather than a standard browser virtual machine?
Would it not make sense to support a set of languages (Java, Python, Ruby, etc.) by way of a standardized virtual machine hosted in the browser rather than requiring the use of a specialized language -- really, a specialized paradigm -- for client scripting only?
...
What does “#define _GNU_SOURCE” imply?
... answered Oct 16 '17 at 9:17
P.PP.P
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iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...直接在介绍AFNetworking的时候详解吧。
25.使用NSURLConnection下载数据
1. 创建对象
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.baidu.com"]];
[NSURLConnection connectionWithRequest:request delegate:self];
2. NSURLCon...
MySQL一次主从数据不一致的问题解决过程 - 数据库(内核) - 清泛网 - 专注C/...
...和认识才行。
下面是几个参考链接
percona-toolkit工具 官方地址
MySQL主从服务器数据一致性的核对与修复 简单描述下过程
用pt-table-checksum校验数据一致性 描述工具原理
用pt-table-sync修复不一致的数据 描述了工具原理
操作...
IOException: read failed, socket might closed - Bluetooth on Android 4.3
...w issues still. Basically, this sometimes blocks and fails. Rebooting the SPP-Device (plug off / plug in) helps in such cases. Sometimes I also get another Pairing request after connect() even when the device is already bonded.
UPDATE:
here is a complete class, containing some nested classes. for ...
Is a successor for TeX/LaTeX in sight? [closed]
...E. Knuth and Michael F. Plass, Software--Practice and Experience, Vol. 11, pp. 1119-1184, 1981), ligatures, kerning, beautiful fonts (Knuth worked with Hermann Zapf in creating typefaces like AMS Euler), and precise control over layout of text on a page.
LaTeX was a later set of macros built on top...
CentOS+Nginx+PHP+MySQL详细配置(图解) - 更多技术 - 清泛网 - 专注C/C++及内核技术
...本一致，这是必须的，切记！
首先我们把PHP和PHP-FPM下载到同一目录下，此次用的为php-5.3.0.tar.bz2和php-5.3.0-fpm-0.5.12.diff.gz，下载到了同一目录下
#tar xvf php-5.3.0.tar.bz2
#gzip -cd php-5.3.0-fpm-0.5.12.diff.gz | patch -d php-5.3.0 -p1 //...
What is a smart pointer and when should I use one?
...omething(); // Use the object in some way.
// Destruction of the object happens, depending
// on the policy the smart pointer class uses.
// Destruction would happen even if DoSomething()
// raises an exception
The simplest policy in use involves the scope of the smart pointer wrapper object, ...
What is the >>>= operator in C?
...terals because e is a hexadecimal digit.
– Dietrich Epp
Aug 25 '14 at 22:21
9
@Kay: The hex float...