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C++模板-继承-具现化 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++模板-继承-具现化今天在学习effective c++中的第49个条款时，遇到一个模板继承的方法，让我打开眼界，感慨万千啊！具体的代码如下：class NewHandlerHolde 今天在学习effective c++中的第49个条款时，遇到一个模板继承的方法，让我...
[完整源码实例] 修改 CListCtrl 的标题栏字体颜色；重绘 CListCtrl 标题栏 ...
[完整源码实例] 修改 CListCtrl 的标题栏字体颜色；重绘 CListCtrl 标题栏如果只需设置标题栏字体的话，无需自绘CHeaderCtrl，部分代码如下：CFont *f = new CFont; f->CreateFont(13, nHeight ...如果只需设置标题栏字体的话，无需自绘CHeaderC...
C++ 取得系统当前时间 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ 取得系统当前时间方法一，只能精确到秒#include <time.h> time_t tt = time(NULL); 这句返回的只是一个时间戳 tm* t= localtime(&tt); printf("%d...方法一，只能精确到秒
#include <time.h>
time_t tt = time(NULL);//这句返回的只是一个时间戳
tm* t= l...
ifstream 线程安全读文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
ifstream 线程安全读文件函数 safeGetline：std::istream& safeGetline(std::istream& is, std::string& t){ t clear(); 使用std::streambuf 函数 safeGetline：
std::istream& safeGetline(std::istream& is, std::string& t)
{
t.clear();
//这比使用std::istream逐个读...
C#中数组、ArrayList和List三者的区别 - 更多技术 - 清泛网 - 专注C/C++及内核技术
C#中数组、ArrayList和List三者的区别在C#中数组，ArrayList，List都能够存储一组对象，那么这三者到底有什么样的区别呢。数组 数组在C#中最早出现的。在内存中是连续存储的，...在C#中数组，ArrayList，List都能够存储一组对象，那么...
Linq 多字段排序，二次排序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...q 多字段排序，二次排序Linq：ordered = source.OrderByDescending( t => t.f1 ).ThenBy( t => t.f2 );类似SQL：select * from t1 order by f1 d...Linq：ordered = source.OrderByDescending( t => t.f1 ).ThenBy( t => t.f2 );
类似SQL：select * from t1 order by f1 desc ,f2 asc
这种写法...
What's the best way to trim std::string?
I'm currently using the following code to right-trim all the std::strings in my programs:
46 Answers
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Add a reference column migration in Rails 4
A user has many uploads. I want to add a column to the uploads table that references the user . What should the migration look like?
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Fastest method to escape HTML tags as HTML entities?
...r.replace(/[&<>]/g, replaceTag);
}
Here is a performance test: http://jsperf.com/encode-html-entities to compare with calling the replace function repeatedly, and using the DOM method proposed by Dmitrij.
Your way seems to be faster...
Why do you need it, though?
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Equivalent of typedef in C#
Is there a typedef equivalent in C#, or someway to get some sort of similar behaviour? I've done some googling, but everywhere I look seems to be negative. Currently I have a situation similar to the following:
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