Needlessly complicated fizzbuzz using templates

fizzbuzz.cpp

#include <algorithm>
#include <cstring>
#include <iostream>
#include <iterator>

template<class T>
class Fizz 
{
    public:
        bool operator()(T t) {
            return static_cast<bool>(!(t%3));
        }
};

template<class T>
class Buzz
{
    public:
        bool operator()(T t) {
            return static_cast<bool>(!(t%5));
        }
};

template<class C>
bool call(C c, int x) {
    return c(x);
}

void fizzbuzz() {
    char s[10],
         f[] = {70, 105, 122, 122, 0}, 
         b[] = {66, 117, 122, 122, 0};
    
    for(int i=0; i<=100; ++i) {
        std::fill(std::begin(s), std::end(s), 0);
        if(call(Fizz<int>(), i)) { strcat(s, f); }
        if(call(Buzz<int>(), i)) { strcat(s, b); }
        if(0[s] == 0 ) snprintf(s, sizeof(s), "%i", i);
        std::cout << s << static_cast<char>(10);
    }
}
int main()
{
    fizzbuzz();
    return 0;
}