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How to implement static class member functions in *.cpp file?
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A::foo() {
helper::fn1();
helper::fn2();
}
To know more about how c++ handles static functions visit: Are static member functions in c++ copied in multiple translation units?
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Why is MATLAB so fast in matrix multiplication?
I am making some benchmarks with CUDA, C++, C#, Java, and using MATLAB for verification and matrix generation. When I perform matrix multiplication with MATLAB, 2048x2048 and even bigger matrices are almost instantly multiplied.
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When should you not use virtual destructors?
...estion explicitly, i.e. when should you not declare a virtual destructor.
C++ '98/'03
Adding a virtual destructor might change your class from being POD (plain old data)* or aggregate to non-POD. This can stop your project from compiling if your class type is aggregate initialized somewhere.
stru...
What is the difference between #import and #include in Objective-C?
...an Objective-C addition to the preprocessor. GCC just supports it in C and C++ source files as well, although they officially suggest not using it in C or C++ in favor of portable, traditional header guards. All Objective-C preprocessors must include #import, however.
– Jason C...
When should you use a class vs a struct in C++?
In what scenarios is it better to use a struct vs a class in C++?
25 Answers
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Should we pass a shared_ptr by reference or by value?
When a function takes a shared_ptr (from boost or C++11 STL), are you passing it:
10 Answers
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Why is `std::move` named `std::move`?
The C++11 std::move(x) function doesn't really move anything at all. It is just a cast to r-value. Why was this done? Isn't this misleading?
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A std::map that keep track of the order of insertion?
...ting implementation for exactly this problem. That's classy. Admittedly, C++ isn't a functional language, so the syntax is somewhat elaborate.
– xtofl
Jul 8 '09 at 17:10
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Why is argc not a constant?
As Effective C++ Item#3 states "Use const whenever possible", I start thinking "why not make these 'constant' parameters const "?.
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What is an unsigned char?
In C/C++, what an unsigned char is used for? How is it different from a regular char ?
17 Answers
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