C1032: Invalid argument expression

[ERROR]

The argument expression of a function call in a Ctor-Init list was illegal.

  struct A {

  

    A(int i);

  

  };

  

  struct B : A {

  

    B();

  

  };

  

  B::B() : A((3) {// error

  

  }

  

In the argument expression of a Ctor-Init function call, there must be the same number of ( as ).