arrayhelper.cpp

// Example program
#include <iostream>
#include <string>

const char* iterationLabels[] = {
    "Iteration 0", "Iteration 1", "Iteration 2", "Iteration 3", "Iteration 4", "Iteration 5", "Iteration 6", "Iteration 7", "Iteration 8", "Iteration 9", "Iteration 10", "Iteration 11", "Iteration 12", "Iteration 13", "Iteration 14", "Iteration 15", "Iteration 16", "Iteration 17", "Iteration 18", "Iteration 19", "Iteration ..."
};

template<typename T, int N>
int ArraySize(T(&)[N])
{
    return N;
}

template<typename T, int N>
T& ArrayClamp(T (&s)[N], int i)
{
    return s[std::max(0, std::min(N-1, i))];
}



int main()
{
  std::cout << ArraySize(iterationLabels) << "!\n";
  
  for(int i = -2; i < 23; i++) {
      std::cout << ArrayClamp(iterationLabels, i) << "\n";
  }
}