title: which object calls constructor faster?
body: <p>I have two different classes in which different type of constructor call is shown. Which of these will execute faster ? </p>
  
  <pre><code>class A
  { 
      string x, y;
  public:
      A(char *i,char *j): x(i), y(j) {}
  };
  
  class B
  {
      string x, y;
  public:
      B(char *i, char *j){ x = i; y = j; }
  };
  
  int main()
  {
      A a("hello", "world");//line 1
      B b("hello", "world");//line 2
  }
  </code></pre>
  
  <p>Which of these lines will execute faster ?</p>