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  1. What does '&' do in a C++ declaration? - Stack Overflow

    I am a C guy and I'm trying to understand some C++ code. I have the following function declaration:

  2. What is the <=> ("spaceship", three-way comparison) operator in C++?

    Nov 24, 2017 · This is called the three-way comparison operator. According to the P0515 paper proposal: There’s a new three-way comparison operator, <=>. The expression a <=> b returns an …

  3. C++ code file extension? What is the difference between .cc and .cpp

    95 .cpp is the recommended extension for C++ as far as I know. Some people even recommend using .hpp for C++ headers, just to differentiate from C. Although the compiler doesn't care what you do, …

  4. What does the C++ standard say about the size of int, long?

    I'm looking for detailed information regarding the size of basic C++ types. I know that it depends on the architecture (16 bits, 32 bits, 64 bits) and the compiler. But are there any standards for ...

  5. c++ - How do you create a static class? - Stack Overflow

    If you're looking for a way of applying the static keyword to a class, like you can in C# for example, then you won't be able to without using Managed C++. But the looks of your sample, you just need to …

  6. c++ - What is the meaning of 'const' at the end of a member function ...

    When you add the const keyword to a method the this pointer will essentially become a pointer to const object, and you cannot therefore change any member data. (Unless you use mutable, more on that …

  7. Check if a string contains a string in C++ - Stack Overflow

    Feb 26, 2010 · I have a variable of type std::string. I want to check if it contains a certain std::string. How would I do that? Is there a function that returns true if the string is found, and false if it is...

  8. How can I get current time and date in C++? - Stack Overflow

    The ffead-cpp provides multiple utility classes for various tasks. One such class is the Date class which provides a lot of features right from Date operations to date arithmetic.

  9. How to use the PI constant in C++ - Stack Overflow

    Nov 13, 2009 · I want to use the PI constant and trigonometric functions in some C++ program. I get the trigonometric functions with include &lt;math.h&gt;. However, there doesn't seem to be a definition for …

  10. Visual Studio Code: How to configure includePath for better ...

    Sep 17, 2017 · From the official documentation of the C/C++ extension: Configuring includePath for better IntelliSense results If you're seeing the following message when opening a folder in Visual …