Does a static function need the static keyword for the prototype in C?

Question

My C programming book says that when I want to create a static function, I need to put the static keyword in front of the function definition. It doesn\'t mention a

Answer 1

yes, yes you do need to put static in front of the declaration.

type this into ideone.com

int add();
int main(){
    printf("%d",add());
    return 0;
}

static int add(){
    return 1+1;
}

you get this result: http://ideone.com/VzZCiE

now type this

static int add();
int main(){
    printf("%d",add());
    return 0;
}

static int add(){
    return 1+1;
}

you get this: http://ideone.com/sz8HVR

boooom