Beginner

Hi there, i'm a beginner when it comes to C++... I use Bloodshed C++ to make beginners console applications, these tasks and classes are for school by the way... Yesterday i made a somewhat different Hello World app. This is the source-code:

# include <iostream>
using namespace std;

int main()
{
string name1;
int age1;

cout << "What is your name" << endl;
getline (cin, name1 );

cout << "What is your age?" << endl;
cin >>age1;
cin.get();

if (age1 >= 18)
{
cout << " Hi there " << name1 << ", you are allowed to enter";
}

else 
{
    cout << "Hi there " <<name1 << ", Rascar Capac sens you his regards";
}
cout << "" << endl;
cout << " Made by Rascar C." << endl;

cin.get();
return 0;
}

Now i have a question wich i hope you will help me with... When i enter a letter when there is asked for my age, the program quits on its own. How do i make sure that when someone enters a letter instead of a number, there will be a message the input is not correct, so the program will take them back to the name/ age option. I really hope you can help me with this..

Greetings, Rascar... :)[code]

GPC

Hi,

wrong board, post to ANSI C or C++ next time. Moreover you could use the cpp tags to enable syntax highlighting.

To solve your problem, I used a char instead of an int and a do-while loop to check whether the entered age is a digit:

#include <string>
#include <iostream>

using namespace std;

int main() {
  string name1;
  char age1;

  do {
    cout << "What is your name\n";
    getline (cin, name1 );

    cout << "What is your age?\n";
    cin >> age1;
    cin.get();

    if (age1 >= 18)
      cout << " Hi there " << name1 << ", you are allowed to enter.";
    else 
      cout << "Hi there " << name1 << ", Rascar Capac sends you his regards.";
  }
  while (!isdigit(age1));

  cout << "\nMade by Rascar C.\n";

  cin.get();
  return 0;
}

Bye

GPC

Thank you very much