How to put functions in a header file

[mido92mashakel]

I 'm new in C++ :
I wanted to know what is the difference between header file and library
and how i can make functions and save them like "cout" and "cin" in IOSTREAM.h


Note : I'm using Borland C++ 4.5

[RedX]

library are precompiled functions. Header files have the forward declarations of the functions available in the libraries.

Maybe this can help clarify things about headers. Btw headers in C and C++ work the same way.
http://www.learncpp.com/cpp-tutorial/19-header-files/

[mido92mashakel]

thanks very much it really helped me a lot :)