// This program uses the strstr function to search an array.
#include <iostream>
#include <cstring>      // For strstr
using namespace std;

int main()
{
   // Constants for array lengths
   const int NUM_PRODS = 5;   // Number of products
   const int LENGTH = 27;     // String length

   // Array of products
   char products[NUM_PRODS][LENGTH] =
                   { "TV327 31 inch Television",
                     "CD257 CD Player",
                     "TA677 Answering Machine",
                     "CS109 Car Stereo",
                     "PC955 Personal Computer" };

   char lookUp[LENGTH];  // To hold user's input
   char *strPtr = NULL;  // To point to the found product
   int index;            // Loop counter

   // Prompt the usr for a product number.
   cout << "\tProduct Database\n\n";
   cout << "Enter a product number to search for: ";
   cin.getline(lookUp, LENGTH);

   // Search the array for a matching substring
   for (index = 0; index < NUM_PRODS; index++)
   {
      strPtr = strstr(products[index], lookUp);
      if (strPtr != NULL)
         break;
   }

   // If a matching substring was found, display the product info.
   if (strPtr != NULL)
      cout << products[index] << endl;
   else
      cout << "No matching product was found.\n";

   return 0;
}