Should every C or C++ file have an associated header file?

Question

Should every .C or .cpp file should have a header (.h) file for it?

Suppose there are following C files :

1. Main.C

2. Func1.C

3. <

Answer 1

If your file exposes an interface - that is, if it has functions which will be called from other files - then it should have a header file. Otherwise, it shouldn't.