header file (.h) creation in c programming

Question

I am new to eclipse, developing c program in eclipse

I am creating multiple source files in same project, could some one help me to create .h file for main () function and to call in multiple source file

for instance if I have created main.c file, now how to call this main.c into another .c file

score 5 · Answer 1 · edited May 23 '17 at 12:27

5

The main() function should not be in a header file. It should be in one and only one .c file.

An example of simple layout can be:

//header.h

#ifndef MY_HEADER <----Notice the Inclusion Guards, read more about them in a good book
#define MY_HEADER

void doSomething();

#endif //MY_HEADER

//header.c

#include "header.h"

void doSomething()
{


}

//Main.c

#include "header.h"

int main(void)
{
    doSomething();
    return 0;
}

But please pick up a good book to learn these basics, You definitely need one.

edited May 23 '17 at 12:27

Community

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answered Jan 31 '12 at 11:41

Alok Save

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Could you kindly suggest one for me – Chaithu Jan 31 '12 at 11:52
Why are you using ".cpp" for a question on C? – unwind Jan 31 '12 at 11:58
@unwind: I answer mostly on C++, and that was a typo, It should be `.c`, not that it makes any difference here. – Alok Save Jan 31 '12 at 13:48
@Chaithu: Please check the link I have added to the answer, It has books grouped for all levels of competency.Pick up any beginner level book in the list there, It should be good for you. – Alok Save Jan 31 '12 at 13:50

header file (.h) creation in c programming

1 Answers1