// Fig. 16.5: Fig16_05.cpp
// Demonstrating pre-standard new returning 0 when memory 
// is not allocated.
#include <iostream>
using std::cerr;
using std::cout;

int main()
{
   double *ptr[ 50 ];

   // allocate memory for ptr
   for ( int i = 0; i < 50; i++ ) 
   {
      ptr[ i ] = new double[ 50000000 ];

      if ( ptr[ i ] == 0 ) // did new fail to allocate memory
      {
         cerr << "Memory allocation failed for ptr[ " << i << " ]\n";
         break;
      } // end if
      else // successful memory allocation
         cout << "Allocated 50000000 doubles in ptr[ " << i << " ]\n";
   } // end for

   return 0;
} // end main


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