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C# vs C - Big performance difference
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A lot of you are missing the point here. I've been reading many similar cases where c# outperforms c/c++ and always the rebuttal is to employ some expert level optimization. 99% of programmers don't have the knowledge to use such optimization techniques just to get their cod...
What is a semaphore?
...emaphore is a programming concept that is frequently used to solve multi-threading problems. My question to the community:
...
Get current clipboard content? [closed]
...PI, via navigator.clipboard. It can be used like this:
navigator.clipboard.readText()
.then(text => {
console.log('Pasted content: ', text);
})
.catch(err => {
console.error('Failed to read clipboard contents: ', err);
});
Or with async syntax:
const text = await navigator.cli...
Rails layouts per action?
...to do simpler things with one-liner the following is possible. Its easy to read and place in top of the controller. --- layout Proc.new{ ['index', 'new', 'create'].include?(action_name) ? 'some_layout' : 'other_layout' }
– holli
Aug 28 '11 at 21:13
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What is the “-->” operator in C++?
After reading Hidden Features and Dark Corners of C++/STL on comp.lang.c++.moderated , I was completely surprised that the following snippet compiled and worked in both Visual Studio 2008 and G++ 4.4.
...
Phonegap Cordova installation Windows
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I faced the same problem and struggled for an hour to get pass through by reading the documents and the other issues reported in Stack Overflow but I didn't find any answer to it. So, here is the guide to successfully run the phonegap/cordova in Windows Machine.
Follow these steps
Download and ...
Navigation bar show/hide
... depending on the navigation bar's current visible state, accessed through reading the navigation bar's isHidden property.
EDIT
The part of my answer for handling tap events is probably useful back before iOS 3.1. The UIGestureRecognizer class is probably a better approach for handling double-taps, ...
C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
...关 / 免于死锁
读高开销 / 抢占式
需要自动回收
Read-copy-update (RCU)
简单 / 高速 / 可拓展
对阻塞敏感
性能敏感
Hazard Pointer
高速 / 可拓展 / 阻塞场景可用
性能依赖 TLS
性能敏感 / 读多写少
C++ 标准库中...
What does “exec sp_reset_connection” mean in Sql Server Profiler? [duplicate]
...
(like @@error)
Stops all EC's (execution contexts)
that are child threads of a parent EC
executing a parallel query
Waits for any outstanding I/O
operations that is outstanding
Frees any held buffers on the
server by the connection
Unlocks any buffer resources
that are used by t...
When is memoization automatic in GHC Haskell?
... this case, the new version is much less efficient because it will have to read about 1 GB from memory where y is stored, while the original version would run in constant space and fit in the processor's cache. In fact, under GHC 6.12.1, the function f is almost twice as fast when compiled without ...