1 Answers

p54.c:19: warning: implicit declaration of function `fibonacci' in gcc?

when ii try to compile this small c program i get : p54.c:19: warning: implicit declaration of function `fibonacci’

what did i do wrong?

/***************************************************************************/

#include <stdio.h>

int main ( int argc, char *argv[ ] ) {

int n ;

printf("\nplease enter a number\n") ;

scanf("%d" , &n) ;

fibonacci(n);

return 0 ;
}

int fibonacci(int n) {

int d =1 ;

int sum ;

int i ;

for(i = 0 ; i < n ; i++) {

printf("%d\n",c) ;

sum = c + d ;

c = d ;

d = sum ;

}

return 0 ;

}