A fine question, but a little too broad (IMO). That's called the scope-resolution operator, and your search term for further learning is scope. All those names (cout, member functions of A) are defined in …

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

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, …

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 …

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 ...

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 …

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...

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.

This is similar to how one would write a prototype for functions in a header file and then define the functions in a .cpp file. A function prototype is a function without a body and lets the compiler know …

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 …