};</pre>If you intend to use forward declarations for a class (especially a template) in a lot of places, it might be wise to put it in a separate header file and include that.

Linux Fu: Automatic Header File Generation November 8, 2021 by Al Williams 22 Comments I’ve tried a lot of the “newer” languages and, somehow, I’m always happiest when I go back to C++ or ...

First of all, thank you for the update ClangdLanguageServer. This update is a great help to many C/C++ developers. As you know, many developers work with header files included in their projects. I ...

To make this version of operator<< a friend of Fraction, we declare it as a friend inside Fraction's class body in its header (.h) file: friend void operator<<(ostream & os, const Fraction & f); Note ...