is it compulsory to have default constructor to use uniform initialization in c++

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  1 :- In the code give below I got an error message that "there is no default constructor" .that's why I can't use uniform initializer.

  
  
  
  
  • 2 :- When I made a default constructor then I got an error regarding braces .
  
  
  
  

Kindly highlight the problem about this program and uniform initiallizer. I am using VS 2012 and C++

                  **Code starts here**



class Circle {

    double radius;
  public:

    Circle(double r) { radius = r; }
    double circum() {return 2*radius*3.14159265;}
    Circle () {
    cout<<"ALI \n ";
    }
};

int main () {

  Circle baz {30.0};   // uniform init.

  Circle qux{};
  cout << "foo's circumference: " << baz.circum() << '\n';
  cout<<endl;
  return 0;
}

asked 38 secs ago

Nouman Maqsood

14