Generic pause function

• use: #include <cstdio>
• use: #include <iostream>
• use: using std::cin;
• use: using std::cout;
• use this prototype before main(): void cont();
• use this call when you want to pause: cont();
• include the following function:

  void cont() {
     if (cin.rdbuf()->sungetc() != -1 && cin.get() != '\n') cin.ignore(80,'\n');
     cout << "Press enter to continue...";
     cin.get();
  }