Answer Posted / mritunjay rai

1)it is not necessary to intialize a pointer at the time of
declaration.like:int a=10; int *p=&a;
u can also do int a=10; int *p; p=&a;
but in the case of reference it is necessary to
intialize a ref.at the time of declaration.like: int
&a=10;bcoz ref.is the secondname(aliase)for an object.means
it always refere an object so it's necessary to initialize
it.
2)u can assign NULL to a pointer.like int *p=NULL; but u
can't assign NULL to a reference.like int
&P=NULL//incorrect.
3)u can create array to a pointer but u can't create
array to a ref.
4) u can use pointer to pointer.but u can't use ref.to ref.
5) pointer is a new variable that contain the address of
another variable.but ref. is a second name (aliase) of the
same variable.
6)to store pointer we require extra memory.but for
reference we don't require extra memory.

What is cmutex?

579

---

How do I create an mfc application in vc++?

606

---

How do I install microsoft visual c++ 2015?

537

---

Does visual c++ 2017 replace 2015?

582

---

What is vcredist_x86 exe?

606

---

---

What is a copy constructor? What is the need for it?

573

---

Is microsoft visual c++ a virus?

653

---

What is vcruntime?

591

---

What is microsoft visual c++ 2017 redistributable?

543

---

Is visual c++ a compiler?

551

---

In which Way invoke context-sensitive help inside the editor?

1780

---

Explain the significance of initapplication() in vc++.

652

---

Do I need ms visual c++ on my computer?

618

---

hello sir i need movie editing and mixing software .where it is available and what is the site address

1721

---

How do I reinstall visual c++ on windows 10?

547

---