3 ms·

Note that you should really be using std:print rather than std::cout if using modern C++.

• npoc 2y ago
  Just because it's newer doesn't make it better. There are good reasons for avoiding iostream
  • tsimionescu 2y ago
    That's my point - iostream is a really bad piece of code, and if you're anyway going to use modern C++, it's really recommended to stop using it.
    • npoc 2y ago
      Sorry, I got your comment completely backwards
    • pjmlp 2y ago
      iostream is good enough for most jobs, unless one is writing high performace IO code battling for each ms.
      • tsimionescu 2y ago
        Or unless one wants to write formatted output, or unless one wants to handle IO errors with RAII...
        • pjmlp 2y ago
          Perfectly fine with existing operators and handle classes. Happily using iostreams since Turbo C++ 1.0 for MS-DOS in 1993, and will keep doing so, unless chasing ms optimizations.
  • spacechild1 2y ago
    > There are good reasons for avoiding iostream I guess that's not what you wanted to say, but I fully agree :)
• greenavocado 2y ago
  Fair enough. Serialization #include <print> template<typename T> void serialize(const T& obj, std::ostream& os) { for_each(reflect(T), [&](auto member) { std::print("{}: {}\n", member.name(), member.get(obj)); }); } Simplified property systems class Person { public: Person(const std::string& name, int age) : name(name), age(age) {} std::string getName() const { return name; } void setName(const std::string& name) { this->name = name; } int getAge() const { return age; } void setAge(int age) { this->age = age; } private: std::string name; int age; REFLECT_PROPERTIES( (name, "Name of the person"), (age, "Age of the person") ) }; int main() { Person person("Alice", 30); auto properties = reflect::getProperties<Person>(); for (const auto& prop : properties) { std::print("Property: {} ({})\n", prop.name, prop.description); auto value = reflect::get(person, prop.name); std::print("Value: {}\n", value); if (prop.name == "age") { reflect::set(person, prop.name, 31); } } std::print("Updated age: {}\n", person.getAge()); return 0; } Simplified template metaprogramming template<typename T> void printTypeInfo() { constexpr auto info = reflect(T); std::print("Type name: {}\n", info.name()); std::print("Member count: {}\n", info.members().size()); } Generic algorithm for printing all members template<typename T> void printAllMembers(const T& obj) { for_each(reflect(T), [&](auto member) { std::print("{}: {}\n", member.name(), member.get(obj)); }); }