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Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术
Boost.Asio的简单使用(Timer,Thread,Io_service类)2. 同步Timer本章介绍asio如何在定时器上进行阻塞等待(blocking wait).实现,我们包含必要的头文件.所有的asio类可以简单的通过include "...目录：
1. 同步Timer
2. 异步Timer
3. 回调函数的参数
4. 成...
大数据：用数据指导APP运营 - 资讯 - 清泛网 - 专注C/C++及内核技术
...能会去关注：
1）App每日的活跃用户数
2）每日产生的UGC数量（区分新老用户）
3）每日分享到社会化媒体的UGC数量（同时考虑单位用户的产生内容数）
4）分享出去的UGC带来的回流新装机、新激活用户数
等等。
而我们需要...
Why does the default parameterless constructor go away when you create one with parameters
In C#, C++ and Java, when you create a constructor taking parameters, the default parameterless one goes away. I have always just accepted this fact, but now I've started wondering why.
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Run all SQL files in a directory
I have a number of .sql files which I have to run in order to apply changes made by other developers on an SQL Server 2005 database.
The files are named according to the following pattern:
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.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
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得合伙人者得天下：腾讯五虎、新东方三驾马车、携程四君子、复旦五虎 - 资...
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创业者：季琦、沈南鹏、范敏
携程创业四君子中，除CEO梁建章是复旦毕业的，沈南鹏、范敏、季琦均是上海交大校友。早在1982年中学生计算机竞赛上，沈南鹏和梁建章这两个数学“神童”同时获奖，从此产生交集。1999年春节...
What makes Scala's operator overloading “good”, but C++'s “bad”?
Operator overloading in C++ is considered by many to be A Bad Thing(tm), and a mistake not to be repeated in newer languages. Certainly, it was one feature specifically dropped when designing Java.
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`find -name` pattern that matches multiple patterns
I was trying to get a list of all python and html files in a directory with the command find Documents -name "*.{py,html}" .
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How to print out more than 20 items (documents) in MongoDB's shell?
won't do it. It still prints out only 20 documents.
6 Answers
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What is “:-!!” in C code?
I bumped into this strange macro code in /usr/include/linux/kernel.h :
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