fig05_17.cpp

经典vc教程的例子程序

// Fig. 5.17: fig05_17.cpp
// Demonstrating the sizeof operator
#include <iostream.h>
#include <iomanip.h>

int main()
{
   char c;
   short s;
   int i;
   long l;
   float f;
   double d;
   long double ld;
   int array[ 20 ], *ptr = array;

   cout << "sizeof c = " << sizeof c
        << "\tsizeof(char) = " << sizeof( char )
        << "\nsizeof s = " << sizeof s
        << "\tsizeof(short) = " << sizeof( short )
        << "\nsizeof i = " << sizeof i
        << "\tsizeof(int) = " << sizeof( int )
        << "\nsizeof l = " << sizeof l
        << "\tsizeof(long) = " << sizeof( long )
        << "\nsizeof f = " << sizeof f
        << "\tsizeof(float) = " << sizeof( float )
        << "\nsizeof d = " << sizeof d
        << "\tsizeof(double) = " << sizeof( double )
        << "\nsizeof ld = " << sizeof ld
        << "\tsizeof(long double) = " << sizeof( long double )
        << "\nsizeof array = " << sizeof array
        << "\nsizeof ptr = " << sizeof ptr
        << endl;

void * ptr1;
int * ptr2;

ptr1 = ptr2;
ptr2 = ptr1;

   return 0;
}