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Favorite (Clever) Defensive Programming Best Practices [closed]

... Allocate a reasonable chunk of memory when the application starts - I think Steve McConnell referred to this as a memory parachute in Code Complete. This can be used in case something serious goes wrong and you are required ...
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Why is require_once so bad to use?

Everything I read about better PHP coding practices keeps saying don't use require_once because of speed. 14 Answers ...
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How does RewriteBase work in .htaccess

...hs in the rule's target. So say you have this rule: RewriteRule ^foo$ bar.php [L] The bar.php is a relative path, as opposed to: RewriteRule ^foo$ /bar.php [L] where the /bar.php is an absolute path. The absolute path will always be the "root" (in the directory structure above). That means tha...
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What is your favorite C programming trick? [closed]

...you should be aware there are some issues with this for large, dynamically allocated structures. share edited May 23 '17 at 11:54 ...
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How to convert object array to string array in Java

...o it are * maintained by this list. (In other words, this method must * allocate a new array even if this list is backed by an array). * The caller is thus free to modify the returned array. It may not look important but as you'll see it is... So what does the following line fail? All object i...
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How can I count all the lines of code in a directory recursively?

We've got a PHP application and want to count all the lines of code under a specific directory and its subdirectories. We don't need to ignore comments, as we're just trying to get a rough idea. ...
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When would anyone use a union? Is it a remnant from the C-only days?

...te a heterogeneous collection of unrelated types which are not dynamically allocated (perhaps they are in-place constructed in a map, or members of an array). And now, an example, with a UML class diagram: The situation in plain English: an object of class A can have objects of any class among ...
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How to use base class's constructors and assignment operator in C++?

...ur class has no resources then use the default version. // Dynamically allocated memory is a resource. // If any members have a constructor that throws then you will need to // write your owen version of these to make it exception safe. X(X const& copy) // Do most of the ...
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ZeroMQ的学习和研究(PHP代码实例) - C/C++ - 清泛网 - 专注C/C++及内核技术

ZeroMQ的学习和研究(PHP代码实例)ZeroMQ,史上最快的消息队列—– ZMQ的学习和研究一、ZeroMQ 的背景介绍  引用官方的说法: ZMQ (以下 ZeroMQ 简称 ZMQ)是一...ZeroMQ,史上最快的消息队列 —– ZMQ的学习和研究 一、ZeroMQ 的...
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What is the purpose of a stack? Why do we need it?

...erts on the semantic analysis of their language, not on efficient register allocation of new chip sets. Now suppose we do it the CIL way. How many CIL generators do you have to write? One per language. How many JIT compilers do you have to write? One per processor. Total: 20 + 10 = 30 code generato...