Why the default argument constructor is called the default constructor

Question

Class A {
public:
       A(int i = 0, int k = 0) {} // default constructor WHY ??
       ~A() {}
};
int main()
{
  A a; // This creates object using defined default 
       // constructor but the constructor still has two arguments
  A b(1,2); // Called as parametrized one
}

Why is this default argument constructor the default constructor. Why is it not called a parameterized constructor or a parameterized default constructor, because even if this constructor is called without arguments, it contains two arguments? Is there any specific reason or its only because the standard speaks about it.

Answer 1

C ++ 11 §12.1 Constructors

The default constructor for class X is the constructor of class X, which can be called without an argument.

. , , .

Answer 2

- , . , .

, "", , , ++. , , .

Answer 3

, . - , ,

A a;

A a=A();

- . , = > , , 'A()' = > , .

Answer 4

++ , . quesrion.