Using subscripting and pointer notations with arrays. - C++ Data Type

Description

Using subscripting and pointer notations with arrays.

Demo Code

#include <iostream> 
using namespace std; 

int main()  { /*  w w  w  .  j  a  va 2  s.c o  m*/
   int b[] = { 10, 20, 30, 40 }; // create 4-element array b 
   int *bPtr = b; // set bPtr to point to array b 

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

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

   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'; 
}

Result

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