Function pointers

Here's a brief example of how to do function pointers in C++ and C#.
The functionality is the same in both examples: either the minimum or the maximum of two numbers is returned by MinOrMax, depending on a bool that is passed in along with the int's.

C++

int Min(int a,int b);
int Max(int a,int b);
int MinOrMax(int a, int b, bool findMin);

int Min(int a, int b)
{
    return (a < b) ? a : b;
}

int Max(int a, int b)
{
    return (a > b) ? a : b;
}

int MinOrMax(int a, int b, bool findMin)
{
    int (*MIN_MAX)(int,int);

    if (findMin)
    {
        MIN_MAX = &Min;
    }
    else
    {
        MIN_MAX = &Max;
    }

    int ret = (*MIN_MAX)(a, b);
    return ret;
}

int main()
{
    cout<<"Min(1,2) = "<<MinOrMax(1, 2, true)<<endl;
    cout<<"Max(1,2) = "<<MinOrMax(1, 2, false)<<endl;

    return 0;
}

C#

delegate int MIN_MAX(int a, int b);

static int MinOrMax(int a, int b, bool findMin)
{
    MIN_MAX v;

    if (findMin)
    {
        v = new MIN_MAX(Min);
    }
    else
    {
        v = new MIN_MAX(Max);
    }

    int ret = v(a,b);
    return ret;
}

static int Min(int a, int b)
{
    return (a < b) ? a : b
}
static int Max(int a, int b)
{
    return (a > b) ? a : b;
}

static void Main()
{
    MessageBox.Show("Min(1,2) = " +
        MinOrMax(1, 2, true));
    MessageBox.Show("Max(1,2) = " +
        MinOrMax(1, 2, false));
}