Retrieving a c++ class name programmatically

Question

I was wondering if it is possible in C++ to retrieve the name of a class in string form without having to hardcode it into a variable or a getter. I\'m aware that none of th

Answer 1

What about this,

Tested on Windows 10 using Visual Studio 2019 (v142).

#include 
#include 
#include 

/**
 @author    blongho
 @fn        template std::string classNameOf()

 @brief     Determine the class name of an object

 @tparam    Object  Type of the object.

 @returns   A name of the class
 @date      2019-09-06
 */

template
std::string classNameOf() {
    std::string name = typeid(Object).name(); //* user defined types gives "class Type"*\ 
    size_t spacePosition = name.find_first_of(" ");
    if (spacePosition != std::string::npos) {
        return name.substr(spacePosition + 1, name.length());
    }
    return name; // mostly primitive types
}


class Person {
private:
    /* data */
public:
    Person() {};
    ~Person() {};

};

class Data
{
private:
    /* data */
public:
    Data() {};
    ~Data() {};

};

struct Type {};

int main() {
    std::cout << "Class name of Person() is \"" << classNameOf() << "\"\n";
    std::cout << "Class name of Data() is \"" << classNameOf() << "\"\n";
    std::cout << "Class name of Type() is \"" << classNameOf() << "\"\n";
    std::cout << "Class name of double is \"" << classNameOf() << "\"\n";
    std::cout << "Class name of std::string is \"" << classNameOf() << "\"\n";
    std::cout << "Class name of int is \"" << classNameOf() << "\"\n";
    std::cout << "Class name of float is \"" << classNameOf() << "\"\n";
    std::cout << "Class name of char is \"" << classNameOf() << "\"\n";
    return 0;
}

---

Output

Class name of Person() is "Person"
Class name of Data() is "Data"
Class name of Type() is "Type"
Class name of double is "double"
Class name of std::string is "std::basic_string,class std::allocator >"
Class name of int is "int"
Class name of float is "float"
Class name of char is "char"

In Ubuntu 18.04,

g++ -o test src/main.cpp
./test
Class name of Person() is "6Person"
Class name of Data() is "4Data"
Class name of Type() is "4Type"
Class name of double is "d"
Class name of std::string is "NSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE"
Class name of int is "i"
Class name of float is "f"
Class name of char is "c"