fig08_20.cpp

是有关C++编程原理教程的例子程序,全,应该对大家有所帮助

// Fig. 8.20: fig08_20.cpp
// Using subscripting and pointer notations with arrays.
#include <iostream>
using std::cout;
using std::endl;

int main()
{
   int b[] = { 10, 20, 30, 40 }; // create 4-element array b
   int *bPtr = b; // set bPtr to point to array b

   // output array b using array subscript notation
   cout << "Array b printed with:\n\nArray subscript notation\n";

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

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

   for ( int offset1 = 0; offset1 < 4; offset1++ )
      cout << "*(b + " << offset1 << ") = " << *( b + offset1 ) << '\n';

   // output array b using bPtr and array subscript notation
   cout << "\nPointer subscript notation\n";

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

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

   // output array b using bPtr and pointer/offset notation
   for ( int offset2 = 0; offset2 < 4; offset2++ )
      cout << "*(bPtr + " << offset2 << ") = " 
         << *( bPtr + offset2 ) << '\n';

   return 0; // indicates successful termination
} // end main

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