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内存管理内幕:动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术

...都获得了自己可以使用的地址空间,可以访问比您物理上安装的内存更多的内存。 在 32-位 x86 系统上,每一个进程可以访问 4 GB 内存。现在,大部分人的系统上并没有 4 GB 内存, 即使您将 swap 也算上, 每个进程所使用的内存...
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动态追踪(Dynamic Tracing)技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...(有点像 D 语言哦)动态编译成一个 Linux 内核模块的 C 源码,因此经常需要在线部署 C 编译器工具链和 Linux 内核的头文件。出于这些原因,SystemTap 脚本的启动相比 DTrace 要慢得多,和 JVM 的启动时间倒有几分类似。虽然存在这...
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How to change shape color dynamically?

...urce: example.setBackgroundResource(R.drawable.myshape); GradientDrawable gd = (GradientDrawable) example.getBackground().getCurrent(); gd.setColor(Color.parseColor("#000000")); gd.setCornerRadii(new float[]{30, 30, 30, 30, 0, 0, 30, 30}); gd.setStroke(2, Color.parseColor("#00FFFF"), 5, 6); Resul...
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Convert SVG image to PNG with PHP

... and I was thinking I should write a tutorial... Here is how to do it with PHP/Imagick, which uses ImageMagick: $usmap = '/path/to/blank/us-map.svg'; $im = new Imagick(); $svg = file_get_contents($usmap); /*loop to color each state as needed, something like*/ $idColorArray = array( "AL" =&gt...
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Is there a way to cause git-reflog to show a date alongside each entry?

...ld have to use a custom format: git reflog --format='%C(auto)%h %<|(17)%gd %C(blue)%ci%C(reset) %s'. I have added an alias for this: github.com/blueyed/dotfiles/commit/… – blueyed Nov 23 '14 at 12:13 ...
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Convert a PHP script into a stand-alone windows executable

I want to automate a fairly simple task. For this I have written a small PHP script which I run from the command line using PHP-CLI. Now I want to hand over this script to someone but I do not want to: ...
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How to remove the querystring and get only the url?

Im using PHP to build the URL of the current page. Sometimes, URLs in the form of 16 Answers ...
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PHP中的错误处理 - 更多技术 - 清泛网 - 专注C/C++及内核技术

PHP中的错误处理程序只要在运行,就免不了会出现错误!或早或晚,只是时间问题罢了。错误很常见,比如Notice,Warning等等。此时一般使用set_error_handler...程序只要在运行,就免不了会出现错误!或早或晚,只是时间问题罢了。...
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SSMS插件开发指南 - C/C++ - 清泛网 - 专注C/C++及内核技术

...称的命令 // 已存在。如果确实如此,则无需重新创建此命令,并且 // 可以放心忽略此异常。 } // 弹出对话框 const string TOOLWINDOW_GUID = "{6CCD0EE9-20DB-4636-9149-66...
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PDO MySQL扩展模块 检测通不过? - PHP - 清泛IT论坛,有思想、有深度

...。 终极解决方案: php编译时加上如下参数,重新编译安装php: --with-pdo-mysql php编译安装完整参数请参见:http://www.tsingfun.com/html/2015/env_0826/configure_param.html