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What exactly does stringstream do?
I am trying to learn C++ since yesterday and I am using this document: http://www.cplusplus.com/files/tutorial.pdf (page 32) . I found a code in the document and I ran it. I tried inputting Rs 5.5 for price and an integer for quantity and the output was 0.
I tried inputting 5.5 and 6 and the output...
How to return smart pointers (shared_ptr), by reference or by value?
...uire something */);
};
This is a dead-obvious RVO opportunity for modern C++ compilers. I know for a fact that Visual C++ compilers implement RVO even when all optimizations are turned off. And with C++11's move semantics, this concern is even less relevant. (But the only way to be sure is to prof...
Smooth GPS data
...d approach and works well. There is a KFilter library available which is a C++ implementation.
My next fallback would be least squares fit. A Kalman filter will smooth the data taking velocities into account, whereas a least squares fit approach will just use positional information. Still, it is d...
Android代码优化小技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...量声明为static final类型的。
避免内部的Getters/Setters
像C++等native language,通常使用getters(i = getCount())而不是直接访问变量(i = mCount).这是编写C++的一种优秀习惯，而且通常也被其他面向对象的语言所采用，例如C#与Java，因为编译器...
Nodejs Event Loop
...e node.js is that v8 loop runs and handles all javascript parts as well as C++ modules [ when they are running in a main thread ( as per official documentation node.js itself is single threaded) ]. When outside of the main thread, libev and libeio handle it in the thread pool and libev provide the i...
How do I convert between big-endian and little-endian values in C++?
How do I convert between big-endian and little-endian values in C++?
31 Answers
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Are there benefits of passing by pointer over passing by reference in C++?
What are the benefits of passing by pointer over passing by reference in C++?
7 Answers
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What is the current choice for doing RPC in Python? [closed]
...ike current Ubuntu, Debian or Fedora. Datatype changes under the hood make C++ usage a mess of #ifdefs, and in the 12 years of existence, they've not managed to convince themselves their software is ready for a 1.0.0 release. I like the massive amount of languages supported, but I think that's their...
Default value of function parameter
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In C++ the requirements imposed on default arguments with regard to their location in parameter list are as follows:
Default argument for a given parameter has to be specified no more than once. Specifying it more than once (...
Error message “No exports were found that match the constraint contract name”
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i cant open my c++ files after delete all in that folder, when i restore these files except Microsoft.VisualStudio.Default.cache, then reopen my solution then everything back to normal.
– Scott 混合理论
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