Is is a good practice to put the definition of C++ classes into the header file?

Question

When we design classes in Java, Vala, or C# we put the definition and declaration in the same source file. But in C++ it is traditionally preferred to separate the definitio

Answer 1

The drawback of putting definition in header files is as follows:-

Header file A - contains definition of metahodA()

Header file B - includes header file A.

Now let us say you change the definition of methodA. You would need to compile file A as well as B because of the inclusion of header file A in B.