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

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 …

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 …

Mar 17, 2011 · What does this symbol mean? AirlineTicket::AirlineTicket ()@PaulR Not everyone who arrives upon this question is looking to learn C++. I, for example, just happened to be …

I have some template code that I would prefer to have stored in a CPP file instead of inline in the header. I know this can be done as long as you know which template types will be used. For …

Jun 9, 2010 · 20 Put as many includes in your cpp as possible and only the ones that are needed by the hpp file in the hpp. I believe this will help to speed up compilation, as hpp files will be …

Constructors are not inherited. They are called implicitly or explicitly by the child constructor. The compiler creates a default constructor (one with no arguments) and a default copy constructor …

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 …

It should be noted that == isn't going to work for you in every case. string overloads the operator to perform a compare, so == is the same as calling a compare. Alternatively, if you try this on …

I'm reading "Think in C++" and it just introduced the extern declaration. For example: extern int x; extern float y; I think I understand the meaning (declaration without definition), but I wonde...