1.

Read the following C++ statements:int * p, a=5p=&a; (a) What is the speciality of the variable p? (b) What will be the content of p after the execution of the second statement? (c) How do the expressions *p+1 and* (p+1) differ?

Answer»

(a) p is special variable and it is called a pointer.

(b) p contains the address of the variable a

(c) #include<iostream>

using namespace std;

int main ()

{

int *p,a=5;

p=&a;

cout<<*p+1<<endI;

cout<<*(p+1);

}

Here p+1 returns (address of the variable a) +4(4 is the size of int data type in Geany C++). *(p+1) returns the content of this next address location.


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