#include <stdio.h>
#include <stdlib.h>

uint f(const char s[]) {
    uint i = 0;
    while (1) {
        if (s[i] == 0) {
            return i;
        }
        i++;
    }
}

int main() {
    char s[] = "Hello World!";
    printf("La taille de \"%s\" est %d\n", s, f(s));
}