Streaming uint8_t pitfall

main.cpp

#include <map>
#include <string>
#include <iostream>
#include <cstdint>

int main() {
    std::map<std::string, uint8_t> map{{
        {"zero", 0},
        {"sixty-five", 65}
    }};
    for (const auto & [k, v] : map) {
        std::cout << "interpreted as char: key=" << k << " value=" << v << std::endl;
        std::cout << "interpreted as integer: key=" << k << " value=" << std::to_string(v) << std::endl;
    }
}