How to use extern : Extern « Language Basics « C / ANSI-C

1. C / ANSI-C
2. Language Basics
3. Extern

How to use extern

  
//File: file f2.c

#include <stdio.h>
#include <f1.c>

extern int i;        

main() {
    i =0;
    printf("value of i %d\n",i);
}

//File: f1.c

int i =7;


           
       

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