Q&A Discussions

What is advantage of using Double Pointer?

16th Feb 2018, 3:16 PM

Jamshid Khakimjanov

c double_pointer doublepointer pointer pointer_to_pointer

0 Votes

What does it mean when we equals content of a pointer variable to address of 1st element of array?

22nd Feb 2022, 2:04 PM

Kevin Kim

array c++pointer

0 Votes

allocating c++memory pointer

6th Mar 2018, 10:06 AM

Purvank Bhiwgade

Pointers

0 Votes

Can anybody explain me why I need to delete the pointer of object in this?? this was shown in most of the website I was seeking

26th Oct 2020, 6:27 AM

SARRA JAWADI

c++class doubt important object pointer

1 Vote

When do you use pointers in C#?

16th May 2022, 3:22 PM

Cyber Eagle

c#pointer pointers

0 Votes

c++pointer reference-types

22nd Jan 2018, 2:43 PM

Akkad Saadi

int y=20; int &ref = y;

0 Votes

What is the meaning of *x = *x +1?

4th Jul 2017, 5:48 AM

Kushagra Agarwal

c++functions pointer

1 Vote

pointers to structure members

21st Jan 2018, 2:52 AM

Purvank Bhiwgade

identifiers member memory pointer struct

0 Votes

In a linked list, if p is the pointer used to traverse in the list then what is the difference between p==NULL &p->link==NULL?

26th Aug 2019, 12:09 PM

Ami Sternlicht

linkedlist pointers

1 Vote

int a[][3] = {1,2,3,4}; int (*p)[3] = a; printf("%d ",*p[0]); p++; printf("%d",*p[0]); O/P = 1 4. HOW POINTER ASSIGNED ABOVE 3?

25th Dec 2019, 7:25 AM

Rahul Kashyap

c pointers

0 Votes

c++const dereference increment pointer

3rd Jan 2021, 10:38 AM

Gogul

C++ code

2 Votes

Could anyone explain me the syntax of linked lists data structure and how do they works in C++

27th Jan 2021, 9:00 PM

Edward Finkelstein

c++linked lists pointer pointers

0 Votes

Challenge 1 question 3 makes no sense.

5th Sep 2019, 4:06 PM

riccardo

c++call function pointer pointers

0 Votes

29th Mar 2018, 12:23 PM

Hector de Perio

char array question

array c++char pointer

0 Votes

Accessing an object’s member functions through each type of object’s name, a reference to the object or pointer of object.

25th Jul 2020, 9:29 AM

Solus

8 edition

0 Votes

Which type of error it will be, if any function or a pointer tries to make changes to the value of const variable?

10th Jul 2017, 9:25 AM

Saad Ahmed

c++constants error type variables

1 Vote

[C++] Why the code run error if un-mark the line 11?

19th Dec 2016, 5:14 AM

RSx

array c++char pointer

2 Votes

How the pointer holds a string in one address ? char *s = "hello"; char *p = s; printf( "%c" , s[0]); ANSWER = h

5th Jun 2017, 5:26 AM

Ibizaj

c pointers

0 Votes

Any suggestion to make the code better?

3rd Jan 2021, 10:02 AM

Gogul

c++matrix new pointer

3 Votes

focus on programming... what is the problem of this code?

8th Dec 2017, 9:24 AM

Light

arrays c++cpp pointer pointers

4 Votes

I have a few question about structs.

12th Mar 2017, 4:43 PM

mahmood motallebi

c++function pointer struct

3 Votes

What is the difference between char* s and char s[]?

10th Jul 2017, 12:35 PM

Yusuf

array c++char*pointer string strings

3 Votes

6 Answers

17th Mar 2018, 1:24 PM

Naveen Maurya

Why do we need pointer? What is the real use of it in real life? I do not get why we need to use pointer while we can just refer to the variable itself?

c++pointers

2 Votes

8 Answers

12th Jun 2016, 6:04 PM

Moona Arita

Could someone explain me please, why is useful a pointer to a class' object, if I can simply use the name of the object in the class?

c++classes pointers

1 Vote

4 Answers

30th Jan 2016, 4:33 PM

Matias Beraldo Fernandez

How this code's output is 12?

c c++const pointer sizeof

0 Votes

In linked list does next pointer contain address of next node actually? Or it just points to the data variable of next node.

21st Apr 2020, 7:02 PM

Ashfaq Reshad

adt data-structure data-types linkedlist pointers structure

0 Votes

Can I take my main() function and address it with a pointer to utilize delete and clean the whole space used?

19th Sep 2018, 5:30 PM

Kishor Jena

c++functions

0 Votes

Frequency of an int in array

10th Aug 2016, 12:58 AM

cout <<< "Justin";

array arraylist c frequency if int loops pointer

0 Votes

14 Answers

23rd May 2019, 8:27 PM

MargaritaK

What does Test& Test::func () mean?

c++class object pointer this

0 Votes

4 Answers

11th Jun 2020, 1:02 AM

Prashant Pant

Can anyone tell me why we need pointer and what will happend if we use it? What is the use of pointer?

pointers

0 Votes

Why my code gives error when i replace these hex number by q ? If address of a pointer is in hex then it should work.

21st Apr 2017, 8:44 AM

Yasin Arafat

c++pointers

1 Vote

I have a few question about structs.

24th May 2020, 8:43 PM

Shubham Maurya

c++function pointer struct

1 Vote

Practice with structures.

10th Jul 2017, 12:33 PM

Yusuf

pointer pointers struct structures

0 Votes

Please explain this program output?

3rd Sep 2022, 2:37 PM

Ahairwe Jordan

ascii c char emoji pointer

1 Vote

What values are j-i and *j-*i actually subtracting ?? The answer i got was 3 30

13th Feb 2020, 5:24 PM

Prathvi

array array&pointer c cprogamming pointer

1 Vote

Помогите разобраться что есть что

16th May 2018, 5:46 AM

Satyam Kirati Namnu

c++heap pointer русский указатели

0 Votes

4 Answers

15th Nov 2017, 6:08 PM

Александр

C++

c++control easy int logic pointer

1 Vote

Declaring a struct inside the same struct definition

25th Feb 2018, 3:39 AM

Nguyễn Văn Bảo

c c++pointer struct structures

1 Vote

Usage of * in a char array

1st Sep 2020, 12:47 PM

Alessandro Palazzolo

*++c++char pointer

1 Vote

29th Jul 2020, 1:13 AM

Solus

DOUBT IN A CONCEPT

array c doubt pointer to

1 Vote

Can someone explain how this works?

24th Apr 2018, 7:51 AM

Abhishek Singh Negi

Bools and pointers

bool c++false functions help pointer pointers reference return true

1 Vote

15 Answers

12th Jul 2019, 9:53 PM

mathew

algorithm array c++help pointer string

0 Votes

what wrong with this code???

25th Jan 2023, 5:53 AM

Skiidedum

c function multiplefunction parameter pointer struct

2 Votes

Pointers in C, C++, and C#: Essential for Performance or Productivity Blockers?

2nd Oct 2019, 5:34 PM

Md Ibrahim (West Bengal, India)

c c#c++clanguage cplusplus csharp performance pointer pointers productivity

3 Votes

7 Answers

10th Nov 2024, 4:07 AM

eugenio raizer

Memory access violation

access-violation c++memory null nullptr pointer

0 Votes

What can be concluded form the following declaration? A)x is an array of 10 pointer. B)x is a pointer to an array of 10 integer?

15th Feb 2022, 4:03 PM

Ketan Lalcheta

c c++

0 Votes

[C] append nodes function?? Help

28th Oct 2016, 8:31 PM

AKSHAY MALVIYA

append c doublepointer linkedlist node pointer

1 Vote

Returning multiple variables in c/cpp

18th Nov 2018, 6:11 PM

Steam

c cpp functions multiple pointer return

2 Votes

Why is func(buf) equal func(&buf)

19th Feb 2019, 10:15 AM

Cлaвeн Ђервида

address c++call function pointer void

2 Votes