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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. 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, …

  3. 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 …

  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. What is the meaning of the auto keyword? - Stack Overflow

    auto was a keyword that C++ "inherited" from C that had been there nearly forever, but virtually never used because there were only two possible conditions: either it wasn't allowed, or else it was …

  6. 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...

  7. 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.

  8. Run C++ in command prompt - Windows - Stack Overflow

    Syntax is just gcc my_source_code.cpp, or gcc -o my_executable.exe my_source_code.cpp. It gets more complicated, of course, when you have multiple source files (as in implementation; anything …

  9. How can I convert int to string in C++? - Stack Overflow

    itoa will be faster than the stream equivalent. There are also ways of re-using the string buffer with the itoa method (avoiding heap allocations if you are frequently generating strings. e.g. for some rapidly …

  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 …