//   
// Example 10.8. Function to search an unordered array sequentially    
// Pre:  a is a char array with n elements.   
//       x is a char.   
// Post: The index of the first occurrence of x in a has been    
//       returned or, if not found, -1.   
//    
   
int SeqSearchUnordered(const char a[], int n, char x)   
{   
   int i = 0,          // index 
       found = FALSE;  // indicates if x has been found 
          
   while (i < n && !found)   
   {   
      if (x == a[i])   
         found = TRUE;   
      else   
         i++;   
   }   

   if (!found)   
      i = -1;   
   return i;   
}