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C++中智能指针的设计和使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...用实现技术是使用引用计数(reference count)。智能指针类将一个计数器与类指向的对象相关联，引用计数跟踪该类有多少个对象共享同一指针。每次创建类的新对象时，初始化指针并将引用计数置为1；当对象作为另一对象的副本而...
Studies on optimal code width?
... reader is to be able to read the book without having to crane the neck. A screen is typically not placed at the distance of a book, which means more characters per line can be used while keeping within the limits of the maximum eye angle. Also, code isn't read as much as it is perused, making this ...
I want my android application to be only run in portrait mode?
...d:name=".YourActivity"
android:configChanges="orientation"
android:screenOrientation="portrait"/>
Let me explain:
With android:configChanges="orientation" you tell Android that you will be responsible of the changes of orientation.
android:screenOrientation="portrait" you set the defa...
开源邮件传输代理软件 -- Postfix 介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...组成，并且在这些进程中并无特定的进程间父子关系。某一个特定的进程可以为其他进程提供特定的服务。
大多数的postfix进程由一个进程统一进行管理，该进程负责在需要的时候调用其他进程，这个管理进程就是master进程。...
How do I disable the “Press ENTER or type command to continue” prompt in Vim?
...
Unfortunately not very helpful for me, it messes up the screen and I have to press Ctrl-L... which is even more annoying than pressing space.
– Johan Kotlinski
May 20 '09 at 23:59
...
Dilemma: when to use Fragments vs Activities:
I know that Activities are designed to represent a single screen of my application, while Fragments are designed to be reusable UI layouts with logic embedded inside of them.
...
Android: How to stretch an image to the screen width while maintaining aspect ratio?
...e, but which is always roughly square) and display it so that it fills the screen horizontally, and stretches vertically to maintain the aspect ratio of the image, on any screen size. Here is my (non-working) code. It stretches the image horizontally, but not vertically, so it is squashed...
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什么是 Ringbuffer ？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...r ？ringbuffer到底是什么？嗯，正如名字所说的一样，它是一个环（首尾相接的环），你可以把它用做在不同上下文（线程）间传递数据的buffer。（...ringbuffer到底是什么？
嗯，正如名字所说的一样，它是一个环（首尾相接的环）...
13 种激励程序员的方法 - 创意 - 清泛网 - 专注C/C++及内核技术
...励程序员的方法如今的程序员和开发团队需要的不仅仅是一个良好的薪酬和福利，是的，标准的津贴将有助于吸引员工，但正如Daniel Pink在他的书中解释到的，...如今的程序员和开发团队需要的不仅仅是一个良好的薪酬和福利，...
How to get screen width without (minus) scrollbar?
...
Try this :
$('body, html').css('overflow', 'hidden');
var screenWidth1 = $(window).width();
$('body, html').css('overflow', 'visible');
var screenWidth2 = $(window).width();
alert(screenWidth1); // Gives the screenwith without scrollbar
alert(screenWidth2); // Gives the screenwith i...