How to start from beginning of the program

Question

I am a very beginner in c++. i am just learning abc of this language.. i created this small program that would add:

#include 
   using namesp         


        

Answer 1

The following code will do that:

    #include 
    using namespace std;

    float add(float a, float b){
            return a+b;  
    }

    int main(){

    float num1;
    float num2;    


    while( true ){

      cout<<"add...enter digits \n";
      cout<<"first digit: ";
      cin>>num1;
      cout<<"\n Second number: ";
      cin>>num2;

      cout<< "your sum is: "<

above code will run forever. If you want to give user a choice, then apply a loop break condition.

  char repeat = 'y';
  while( repeat == 'y'){

  // do as previous

  //.....

 //finally give user a choice

  cout<< "Do you want to repeat?(y/n):";
  cin>> repeat;
  }


    system("pause");    
}