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c++11 std::call_once只调用一次函数，类似单例模式 - C/C++ - 清泛网 - 专...
c++11 std::call_once只调用一次函数，类似单例模式std_call_oncestd::call_once 保证函数或者一些代码段在并发或者多线程的情况下，始终只会被执行一次，Demo如下： include <iostream> include <thread>static std::once_flag g_once_flag std::call_once 保证...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
...一个局部对象来封装一个资源，这样一来局部对象的析构函数就可以自动释放资源。这样，程序员就不会“忘记释放资源”了。 [译注：因为C++的对象“生命周期”机制替他记住了 :O) ] 下面是一个例子：
class File_handle {
...
【精心整理】【实用】visual C++中最常用的类与API函数 - C/C++ - 清泛网 -...
【精心整理】【实用】visual C++中最常用的类与API函数这篇文章能让初学者快速了解visual C++MFC中常见的核心的类与函数，虽然全部看下来有点枯燥，但对初学者快速了解MFC的框架结构很有好处。...这篇文章能让初学者快速了解visu...
How to timeout a thread
...{
@Override
public String call() throws Exception {
Thread.sleep(4000); // Just to demo a long running task of 4 seconds.
return "Ready!";
}
}
Play a bit with the timeout argument in Future#get() method, e.g. increase it to 5 and you'll see that the thread finishes. You...
How do I make a Mac Terminal pop-up/alert? Applescript?
...sage
MIN=15 && for i in $(seq $(($MIN*60)) -1 1); do echo "$i, "; sleep 1; done; echo -e "\n\nMac Finder should show a popup" afplay /System/Library/Sounds/Funk.aiff; osascript -e 'tell app "Finder" to display dialog "Look away. Rest your eyes"'
A bonus example for inspiration to combine ...
Is there a way to do repetitive tasks at intervals?
... delay, period) in Java. I know I can do this with a goroutine and Time.sleep() , but I'd like something that easily stopped.
...
Cannot delete directory with Directory.Delete(path, true)
...try
{
Directory.Delete(path, true);
}
catch (IOException)
{
Thread.Sleep(0);
Directory.Delete(path, true);
}
But this only works if the open directory is the immediate child of the directory you are deleting. If a\b\c\d is open in Explorer and you use this on a, this technique will fai...
multiple prints on the same line in Python
...08
backspace(len(s)) # back n chars
time.sleep(0.2) # sleep for 200ms
Python 3:
import time
def backline():
print('\r', end='') # use '\r' to go back
for i in range(101): # for 0...
MFC的多国语言界面的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...设置，线程语言默认采用用户设置语言。设置线程语言的函数是SetThreadLocale。
设置线程语言为“中文”的代码如下：
SetThreadLocale(MAKELCID(MAKELANGID(LANG_CHINESE, SUBLANG_CHINESE_SIMPLIFIED), SORT_DEFAULT));
设置线程语言为“英语（美国）”...
windbg 备忘 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...c 切换栈帧
kv (数量) 栈帧信息
dt -r 递归 ntdll!*
u /uf (函数)
ub (往前)
常用前缀：Cc（Cache Manager），Cm（Configuration Manager），Ex（Excutive support routines），FsRtl（文件系统驱动程序运行库），Ps（Process support），Rtl（运行库），Zw...