generic_tostring_4.cpp

namespace details
{
    template <typename T>
    constexpr auto canCallStdString = !std::is_same_v<T, bool> &&
                                      (std::is_integral_v<T> ||
                                       std::is_unsigned_v<T> ||
                                       std::is_floating_point_v<T>);
}

template <typename T>
std::enable_if_t<details::canCallStdString<T>, std::string>
    toString(const T& value)
{
    return std::to_string(value);
}