c++ - What will be the output? -

 1. int *a;  2. a=new int[2];  3. cin>>a[0];  4. cout<<a<<"\n";  5. cout<<&a<<"\n";                  6. cout<<*a; 

what output of 5th line? know 4th line give address of first element of array , 6th line give value of first element of array a. cannot figure out address given 5th line.

thanks.

edit: output after compiling.

• 4
• 0x5d2158
• 0x28fefc
• 4

4 taken input. 0x5d2158 output of 4th line 0x28fefc output of 5th line 4 output of 6th line

it give address of pointer a itself. pointers take space in memory store address of actual data pointing to, in case integer array.