[Dev-C++] Weird Result

[sam R. <as...@ya...>]

This code was working fine two days ago. But today it is acting weird. It runs fine but the result is wrong. It is suppose to give me a message whenever I enter character instead of number.
  =====================================================
  #include<iostream>
#include<cctype>
using namespace std;
int main()
{    int a,b,c;
cout << "Enter 3 integers a,b,c \n";
cin >> a>>b>>c;
cout <<"\n";
  if(a|b|c == char())
  
  {
  cout <<"Please don't enter characters. Enter numbers only.\n";
  }
   else
    {     if(a!=b && b!=c)
 cout << "Scalene\n";
      else if (a==b && a!=c)
 cout <<"Isosceles\n";
       else if (a==b && a==c)
   cout <<"Equilateral\n";
   
 }
  system("pause");
 return 0;
 
}
========================================================

       
---------------------------------
Never miss a thing.   Make Yahoo your homepage.