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C++ performance challenge: integer to std::string conversion
...m/BCp5r), it scores 18.5 MB/s, about half the speed of sprintf. And with VC++ 2010, it gets about 50 MB/s, about twice the speed of sprintf.
– Ben Voigt
Dec 4 '10 at 2:19
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What is a void pointer in C++? [duplicate]
...you should rethink what code you're looking at. void* usage, especially in C++, should be rare, used primary for dealing in raw memory.
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return statement vs exit() in main()
...lly, there is a difference, but it's subtle. It has more implications for C++, but the differences are important.
When I call return in main(), destructors will be called for my locally scoped objects. If I call exit(), no destructor will be called for my locally scoped objects! Re-read that. exit...
Visual Studio can't build due to rc.exe
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This rc.exe error can occur if the Visual C++ compiler and the Windows 10 SDK versions don't correspond to the same Visual Studio year. In general, the solution is to make sure you have on your system, and are using in the compilation, VC++ and Windows SDK for the vi...
Modulo operator with negative values [duplicate]
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@JamesKanze: C++03 still contains the implementation definedness, it is C++11 which removes it. (and requires divisions to follow fortran, basically)
– PlasmaHH
Sep 29 '11 at 10:00
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C++ unordered_map using a custom class type as the key
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I am just learning C++ and one thing I always struggle with is: Where to put the code? I have written a specialize std::hash method for my key as you have done. I put this at the bottom of my Key.cpp file but I am getting the following error:...
How do I build a graphical user interface in C++? [closed]
All of my C++ programs so far have been using the command line interface and the only other language I have experience with is PHP which doesn't support GUIs.
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Using std Namespace
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Most C++ users are quite happy reading std::string, std::vector, etc. In fact, seeing a raw vector makes me wonder if this is the std::vector or a different user-defined vector.
I am always against using using namespace std;. It ...
Why no generics in Go?
... programmers being the result of no generics, slow compilers are caused by C++ like generics and slow execution times stem from the boxing-unboxing approach that Java uses.
The fourth possibility not mentioned in the blog is going the C# route. Generating the specialized code like in C++, but at ru...
How do I see a C/C++ source file after preprocessing in Visual Studio?
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cl.exe, the command line interface to Microsoft Visual C++, has three different options for outputting the preprocessed file (hence the inconsistency in the previous responses about Visual C++):
/E: preprocess to stdout (similar to GCC's -E option)
/P: preprocess to file
/EP: p...