Is it the same if we write int say_hello(); instead of void say_hello(); ? If not what's the difference ?

Question

#include <stdio.h>

void say_hello();

int main() {
int i;

for (i = 0; i < 5; i++) {
say_hello();
}

return 0;
}

void say_hello() {
static int num_calls = 1;

printf("Hello number %d\n", num_calls);
num_calls++;

}

Answer 1

So void means that when you call this method nothing is returned but I guess your confused as to why somthing is being printed?? That's because the code inside the say_hello method is executed and prints directly to console and that's all, the actual method is not returning anything back to were it was called.