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C++ Code Outline

sindhushere (2)
Can you give me the outline for a code. I want to count the number of girls and boys entering a exam hall. This counting i am planning to do through swipe machine.

Thanks & regards, Sindhu
Stewbond (2827)
No idea what your contraints are. Here is a class to handle a swipe and increment a counter.
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enum Gender
{
  boy,
  girl
};

class Swiper
{
  int boys;
  int girls;
public: 
  Swiper() : boys(0), girls(0) {}
  void Swipe(Gender g)
  {
    if ( g == Gender::boy ) boys++;
    else if ( g == Gender::girl ) girls++;
  }
};
boost lexical cast (395)
Improved version on Stewbond's code (aside from changes in style and other minor things).

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enum class Gender { boy, girl, both };

class Swiper
{
  private:
    int boys;
    int girls;
  public: 
    Swiper() : boys(0), girls(0) { }
    void swipe(int val, Gender g)
    {
        if (g == Gender::boy) { boys += (boys + val >= 0 ? val : -boys); }
        else if (g == Gender::girl) { girls += (girls + val >= 0 ? val : -girls); }
        else if (g == Gender::both)
        {
            boys += (boys + val >= 0 ? val : -boys);
            girls += (girls + val >= 0 ? val : -girls);
        }
    }
    void reset(Gender g)
    {
        if (g == Gender::both) { boys = 0; girls = 0; }
        else if (g == Gender::boy) { boys = 0; }
        else if (g == Gender::girl) { girls = 0; }
    }
    void set(int val, Gender g)
    {
        if (val >= 0)
        {
            if (g == Gender::both) { boys = val; girls = val; }
            else if (g == Gender::boy) { boys = val; }
            else if (g == Gender::girl) { girls = val; }
        }
    }
    int get(Gender g)
    {
        if (g == Gender::both) { return boys + girls; }
        else if (g == Gender::boy) { return boys; }
        else if (g == Gender::girl) { return girls; }
        return -1;
    }
};
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