How can you create a headerfile in a c?

Answer 1

Create the header file as a .h file in the same way you create a source file, .c and place it in the same directory as the .c files. To incorporate it, use the...

#include "my_header_file.h"

... directive. Note that there are double quotes instead of greater/less signs. This tells the compiler to look first in the source directory.

Answer 2

Create a new file with an (foo.)h extension. Now you have a header file that you can put stuff in, copy this new file into the folder where all your header file resides and #include "foo.h" in the c source files that need to reference the header file.

Answer 3

> How do you create

With your favourite text editor/IDE.

> and use your own header files in C?

#include "my_own_header.h"