// Fig. 8.16: fig08_16.cpp
// Sizeof operator when used on an array name
// returns the number of bytes in the array.
#include <iostream>
using std::cout;
using std::endl;

size_t getSize( double * ); // prototype

int main()
{
   double array[ 20 ]; // 20 doubles; occupies 160 bytes on our system

   cout << "The number of bytes in the array is " << sizeof( array );

   cout << "\nThe number of bytes returned by getSize is "
      << getSize( array ) << endl;
   return 0; // indicates successful termination
} // end main

// return size of ptr        
size_t getSize( double *ptr )
{                            
   return sizeof( ptr );     
} // end function getSize    

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