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Android应用内存泄露分析、改善经验总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...用,右键某个类→Merge Shortest Paths to GC Roots→exclude all phantom/weak/soft etc.references。 验证改善效果   根据个人经验,我一般是这样验证改善效果,运行程序,各个功能跑一遍,确保没有改出问题,完全退出程序,...
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php中json_decode()和json_encode()使用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术

... echo "Unicode: ", json_encode($a, JSON_UNESCAPED_UNICODE), "\n"; echo "All: ", json_encode($a, JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP | JSON_UNESCAPED_UNICODE), "\n\n"; $b = array(); echo "Empty array output as array: ", json_encode($b), "\n"; echo "Empty array out...
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win7 安装项目管理工具redmine2.5.1 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...要开始这项工作。 一、了解redmine 参考redmine官方Installtion Guide,主要是对redmine有个大致了解。 http://www.redmine.org/projects/redmine/wiki/RedmineInstall 二、下载必要软件包 我用是以下版本: redmine-2.5.1.zip railsinstaller-2....
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使用 JSON 和 Web API · App Inventor 2 中文网

...式提供给它后续步骤。在下面例子中,我们给它 walk all at level 和 title 关键路径来获取列表中每个帖子标题(按appearance排序)。这段代码在功能上等同于上面使用 for each 块代码,但它更简洁。 发送数据 将数据发...
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泰迪熊为什么叫泰迪 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...负鼠配地瓜)。于是塔夫托说,“for possum first, last, and all the time”,这句话没看懂。但是塔夫托因为这句话被政治漫画家绘作一只负鼠,名为 Billy Possum(比利鼠)。 由于罗斯福和泰迪熊巨大成功,玩具商们看准了这次商机...
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Nginx与Lua - 更多技术 - 清泛网 - 专注C/C++及内核技术

...<VERSION>.tar.gz shell> cd LuaJIT-<VERSION> shell> make shell> make install 因为安装在缺省路径,所以LuaJIT对应lib,include均在/usr/local目录里。 shell> export LUAJIT_LIB=/usr/local/lib shell> export LUAJIT_INC=/usr/local/include/luajit-<VERSION> 下面就可以编译...
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[since C++11] std::array使用 - C/C++ - 清泛网 - 专注C/C++及内核技术

...y<char> as a fix sized c-string. array<char, 100> str = {0}; // all elements initialized with 0. char *p = str.data(); strcpy(p, "hello world"); printf("%s\n", p); // hello world END_TEST; 上面这个例子让我想起了std::string, 它有一个c_str()方法,...
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VC窗口刷新InvalidateRect和UpdateWindow - C/C++ - 清泛网 - 专注C/C++及内核技术

...INT messages. If an application processes a WM_PAINT message but does not call BeginPaint or otherwise clear the update region, the application continues to receive WM_PAINT messages as long as the region is not empty. In all cases, an application must clear the update region before returning from t...
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内存调试技巧:C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术

...他许多通用语言(如 Java&trade;、Ruby、Haskell、C#、Perl、Smalltalk 等),每种语言都有众多爱好者和各自优点。但是,从计算角度来看,每种编程语言优于 C 或 C++ 主要优点都与便于内存管理密切相关。与内存相关编程是如...
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闲扯Nginxaccept_mutex配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...际上Nginx作者Igor Sysoev曾经给过相关解释: OS may wake all processes waiting on accept() and select(), this is called thundering herd problem. This is a problem if you have a lot of workers as in Apache (hundreds and more), but this insensible if you have just several workers as ...