//---------------------------------------------------
// Purpose: User input with error checking.
// Author:  John Gauch
//---------------------------------------------------
#include <cstdlib>
#include <iostream>
using namespace std;

int main()
{
   int amount = 0;
   while (amount <= 0)
   {
      // Get user input
      cout << "Enter amount > 0: ";
      string input;
      cin >> input;
      
      // Convert string to integer
      try
      {
         amount = stoi(input);
      }
      catch (...)
      {
         cout << "Error: invalid input type" << endl;
      }
   }

   cout << "Amount was: " << amount << endl;
   return 0;
}