};</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. So for example, you ...

A C++ Example. For things like C++ classes — or anything, ... C++ should have ditched header files long ago. Perhaps, only keeping them as an option. Report comment. Reply. Jake says: ...

Write a complete C++ class to represent a circle in two-dimensional space. Your class should consist of a header (circle.h) and an implementation (circle.cpp) file as described below. The circle class ...

C++ splits source into header and implementation files. It requires a big monitor to see .hpp and .cpp header file extensions and file name extensions at the same time.