Q&A Discussions

3 Votes

Why mostly in c program using pointer pointer is daclared in this way ? *ptr = NULL

6th Feb 2022, 5:48 AM

adeadaccount

1 Vote

6th Mar 2020, 8:17 AM

Yash Chaudhari

Hacking

c c++memory pointers python

7 Votes

if a pointer has its data typ as integer then how can it store the memory address of a variable which may contain character?

17th Apr 2018, 1:04 PM

sss

3 Votes

20th Jun 2016, 7:45 PM

Monic@

What are pointers?

3 Votes

When we write " *point= &obj; " what does * and & signifies in the pointers perspective?

2nd Mar 2017, 6:29 AM

sonali kar

c++classes

0 Votes

Pointer A predincrements and pointer B postincrements in cycle. Why aren't they equival? What's wrong with pointer B?

17th Feb 2017, 8:37 PM

Neha Selal

c++cycles pointers

0 Votes

16 Answers

20th Jun 2019, 12:40 PM

Парампампам

What is the the different: 1. Ptr is an array of 12 pointers to integer. 2. Ptr is an array of 12 integer pointers?

1 Vote

I didn't understand what the second one is?

11th Sep 2022, 6:04 AM

Oliver Pasaribu

0 Votes

How passing the address of a format specifier work in a printf statement?

9th Oct 2019, 11:19 AM

Luc v. Valen

0 Votes

I have some doubts regarding efficient memory management. Please help me

17th Dec 2019, 6:34 PM

Hima

c++heap-memory memory-management pointers

10 Votes

16 Answers

29th Mar 2019, 7:42 AM

777

Why is the output the same for both &arr and arr in these c code snippets?

arrays c pointers

4 Votes

9 Answers

7th Aug 2021, 1:56 PM

Josh Greig

Final test module 3?

0 Votes

Same as before: DO NOT USE SIDE EFFECTS IN YOUR MATERIAL‼️

9th Oct 2019, 11:21 AM

Luc v. Valen

0 Votes

Can anyone explain me abt pointer??

31st Jul 2018, 5:35 PM

Ramin D

1 Vote

I cannot understand pointers. Why we need some values like 0×29fee8 (?)? And why we use *things to point some things to variable

24th Oct 2016, 3:23 PM

kanisha

1 Vote

26th Aug 2017, 8:27 AM

Altale

No Output! Why?

5 Votes

23rd Oct 2016, 7:24 AM

Nima J.

C challenges useless?

c pointers quiz

5 Votes

why does this code always cause Segmentation fault......

4th Dec 2018, 11:14 AM

ShortCode

Is it true that we need to manage memory by ourselves?

0 Votes

8 Answers

22nd Jan 2019, 7:51 AM

HZCK_Mi Sa Pon

0 Votes

9 Answers

27th Jan 2017, 9:03 AM

Edson Ho

What is going on ?

1 Vote

Don't variables have a fixed size. If so then I will know the size of the program when writing it. So why do we require heap mem

4th Jul 2018, 7:26 PM

Mohammad Alshareef

2 Votes

Another pointer question.

20th Jun 2018, 8:12 AM

Devesh Mungad

4 Votes

It does not work when the "&"s and "*"s are removed. Why?

9th Oct 2017, 6:56 AM

Adam

3 Votes

How to avoid memory Leak when Using pointers?

21st Nov 2018, 3:58 AM

smallujk

1 Vote

int **p; what is the meaning of this code?

7th Apr 2018, 3:46 PM

RiGeL

0 Votes

10th Jul 2016, 2:25 AM

Clyde Bryan

A doubt.

1 Vote

What is the best website to study dynamic binding and pointers and array and function and structure?

11th Sep 2019, 11:14 PM

Dhruv Baliyan

0 Votes

Why does Java not support pointer?

25th Aug 2016, 11:40 AM

Mayil esh

java pointers

3 Votes

8th Apr 2018, 7:32 PM

Sunny Patel

Sorting elements

arrays pointers

0 Votes

how to count all pointers and variables that using an dynamically allocated memory with malloc and new ?

13th Nov 2018, 8:27 AM

mo🐼

c++memory memory-leak pointers

1 Vote

Can someone help me in this

26th Jun 2022, 5:36 PM

Esmaeil Zivari

0 Votes

Hello I took my quiz earlier and I'm kind or curious why I got this question wrong on pointers

26th Dec 2020, 12:56 PM

Decoder 👩‍💻

c++

0 Votes

The program should display menu with this line"Welcome to Virtual line system" and developed using pointers and linked list

8th Dec 2020, 5:54 PM

boba

1.call

-2 Votes

What is the use of Phython core?

11th Sep 2022, 5:39 PM

Thabiso

-2 Votes

27th Jan 2022, 5:11 PM

PokeStar 2319

What is a heap?

5 Votes

14th Jun 2017, 8:26 AM

Kenshin Himura

Outdated/mixed course ?

6 Votes

Difference between array and string?

29th Oct 2016, 10:25 AM

Artemis

1 Vote

Hi everyone. Please could anyone tell me how to earn points

3rd May 2020, 12:59 PM

Krishna Pratap Kushwah

pointers sololearn

0 Votes

I don't understand why we use " & " in the code

23rd Nov 2021, 2:23 AM

Debicon_rocks

1 Vote

To get grip on pointers, What should i do..??

28th Jul 2016, 1:22 PM

Raphael Korosso

2 Votes

please explain the output of this code int a[10]; int *p=a; printf("%d%d%d",sizeof(a),sizeof(a[10]),sizeof(p));

17th Dec 2017, 4:25 PM

Mohsin Ali

How can I get the address of the pointer itself not the address to which the pointer is pointing but the addrrss of the memory location where the actual pointer is stored

0 Votes

8 Answers

5th Mar 2017, 12:38 PM

mrinalini

4 Votes

What are the differences between references and pointers?

22nd Jul 2016, 7:31 AM

Vladislav Vulchev

c++cplusplus pointers references sololearn

16 Votes

10 Answers

5th Aug 2019, 6:04 PM

Bob Brown

Please explain!

c integers pointers

7 Votes

29th Jan 2021, 4:25 AM

Hrutik Bhalerao

Please, Explain ?

c output pointers

3 Votes

Why it is printing the value 578 again in line 8 even after deallocation?

9th May 2019, 7:31 AM

Sp Maurya

c++heap pointers

0 Votes

9 Answers

26th Aug 2022, 2:55 AM

Ujjawal Gupta

Why i dont have output???

arrays pointers

0 Votes

The address of a variable can be directly accessed by Ampersand....Then why do we use pointers isn't useless....

21st Jul 2021, 6:19 PM

Olka Berkovich

ampersand c++pointers

0 Votes

void pointer and different type value

15th Dec 2018, 12:20 PM

Aamir Mehmood

c pointers void

3 Votes