fig05_20.cpp

来自「经典vc教程的例子程序」· C++ 代码 · 共 40 行

// Fig. 5.20: fig05_20.cpp
// Using subscripting and pointer notations with arrays

#include <iostream.h>

int main()
{
   int b[] = { 10, 20, 30, 40 };
   int *bPtr = b;   // set bPtr to point to array b

   cout << "Array b printed with:\n" 
        << "Array subscript notation\n";

   for ( int i = 0; i < 4; i++ )
      cout << "b[" << i << "] = " << b[ i ] << '\n';


   cout << "\nPointer/offset notation where\n"
        << "the pointer is the array name\n";

   for ( int offset = 0; offset < 4; offset++ )
      cout << "*(b + " << offset << ") = " 
           << *( b + offset ) << '\n';


   cout << "\nPointer subscript notation\n";

   for ( i = 0; i < 4; i++ )
      cout << "bPtr[" << i << "] = " << bPtr[ i ] << '\n';

   cout << "\nPointer/offset notation\n";

   for ( offset = 0; offset < 4; offset++ )
      cout << "*(bPtr + " << offset << ") = "
           << *( bPtr + offset ) << '\n';

   return 0;
}