Question

How to initialize const data members in class with C++

Answer 1

#include <iostream>
 
class Test {
    const int n;
    public:
        Test(int a) : n(a) {}
        void show() {
            std::cout << n;
        }
};
 
int main()
{
    Test t(20);
     
    t.show();
     
    return 0;
}
 
  
  
/*
run:
  
20
  
*/

 

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