How to create derived class in c++
<p>I'm confused on how to deal with inheritance in C++</p>

<p>I'd like to pass parameters on the constructor. But I only got run this when I create a class without parameters.</p>

<p>This small program: </p>

<pre><code>#include &lt;iostream&gt;
using namespace std;

// Base class

class Shape { 
  protected:

  int width, height;

  public:

  Shape(int w, int h) {  
    width = w;
    height = h;
  }

  void setDimensions(int w, int h)  {
    width = w;
    height = h;
  }

};

// New class Rectangle based on Shape class

class Rectangle: public Shape {
  public:

    int getArea() {
      return (width * height);
    }

};
</code></pre>

<p>When compile I get the errors:</p>

<pre><code>$ g++ inheritance.cpp -o inheritance -g -std=c++11
inheritance.cpp:44:13: error: no matching constructor for initialization of 'Rectangle'
  Rectangle r(3, 4)
            ^ ~~~~
inheritance.cpp:33:7: note: candidate constructor (the implicit copy constructor) not viable: requires 1 argument, but 2 were provided
class Rectangle: public Shape {
      ^
inheritance.cpp:33:7: note: candidate constructor (the implicit move constructor) not viable: requires 1 argument, but 2 were provided
inheritance.cpp:33:7: note: candidate constructor (the implicit default constructor) not viable: requires 0 arguments, but 2 were provided
</code></pre>