At this point we have the "class Element;" declaration (from 2a), but not the full class Element definition. <BR>5.

Once the #include us pre-processed it's all part of the same file, remember.<BR><BR>*well actually even variable declations would be executable, particularly in the case of C++ c-tors.

Hello, 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 ...

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 ...