Sanj's Notes

Link C Files

Let lib.c be library file containing some util function.

lib.c #

#include <stdio.h>

void callLibrary() {
    printf("hello from library code!\n");
}

To call callLibrary from the main file main.c, do it like this.

main.c #

#include "lib.h"

int main(int argc, char **argv) {
    callLibrary();
}

Compile #

To compile and run…

$ gcc -Wall -Werror -o main main.c lib.c

Run #

$ ./main
hello from library code!

July 27, 2020

categories: c