Log class name

#include <iostream>
#include <cstdlib>
using namespace std;


#define LOG(msg) log(__CLASS__, msg);

void log(const char* cls, string str)
{
    cout << "[" << cls << "] " << str << endl;
}


class MyClass1
{
public:
    void foo()
        {
            LOG("the message");
        }
};

class MyClass2
{
public:
    void foo()
        {
            LOG("another one message");
        }
};



int main()
{
    MyClass1 obj1;
    MyClass2 obj2;

    obj1.foo(); // [MyClass1] the message
    obj2.foo(); // [MyClass2] another one message

    system("pause");
    return 0;
}