Overload operator << for C style arrays

example1.cpp

#include <iostream>
#include <iomanip>
#include <sstream>

template<typename T, size_t N,
std::enable_if_t<!(std::is_same<T, char>::value||std::is_same<T, unsigned char>::value), bool> = true>
std::istream& operator>>(std::istream& in, T(&arr)[N]) {
    for(auto& a: arr) {
        in >> a;
    }
    return in;
}


int main()
{
    std::string input = "1 2 3 4 5 6";
    std::istringstream stream(input);
    const int MAX = 6;
    unsigned char cstr[MAX];
 
    stream >> cstr;

    for(auto a: cstr) {
        std::cout << a << std::endl;
    }
}

example2.cpp

#include <iostream>
#include <iomanip>
#include <sstream>

std::istream& operator>>(std::istream& in, volatile char& a) {
    char b;
    in >> b;
    a = b;
    return in;
}

template<typename T, size_t N,
std::enable_if_t<!(std::is_same<T, char>::value||std::is_same<T, unsigned char>::value), bool> = true>
std::istream& operator>>(std::istream& in, T(&arr)[N]) {
    for(auto& a: arr) {
        in >> a;
    }
    return in;
}


int main()
{
    std::string input = "1 2 3 4 5 6";
    std::istringstream stream(input);
    const int MAX = 6;
    volatile char cstr[MAX];
 
    stream >> cstr;

    for(auto a: cstr) {
        std::cout << a << std::endl;
    }
}