Value of Operator in Pointers

C Programming: Value of Operator in Pointers.
Topics discussed:
1) Use of value of operator in pointers.
2) Important points related to the value of operator in pointers.

Music:
Axol x Alex Skrindo - You [NCS Release]

#CProgrammingByNeso #CProgramming #Pointers #ValueOfOperator #PointersInC

[anuragpimpalkar]

Editing skills + programming skills + good accent = perfect learning

[jonathanporter]

Took my professor over an hour to explain this topic, took you just over 5 minutes, and did a much better job. Thank you so much!

[SandipBhattacharya]

Let's discuss all the pointer operators available in C and C++. There are two pointer operators: * and &. The & is a unary operator, called “Address of” or “Reference operator” that returns the memory address of its operand.
For example,
j = &i;
assigns the address of i into j. This address is the computer's internal location of the variable in memory. It has nothing to do with the value of i. You can think of & as returning "the address of". Therefore, the above assignment statement can be expressed as "j receives the address of i".

The second pointer operator, *, called “Value at address” or “Dereference operator” or "Indirection operator" is the complement of &. It returns the value located at the address that follows. For example, if j contains the memory address of the variable i,
k = *j;
copies the value of i into k.
Hope it helps. :)

[fernandosalas]

One of the best explanations all over the web.

[memeingthroughenglish]

I really appreciate your slight humor and the very clear diagrams! You do a great job explaining what exactly is happening in C, and not just how to code! Thank you so much!

[stever]

Outstanding video, to the point, accurate, great pace. I used to struggle with the CONTEXT which the dereference /indirection usages for pointer initialization and you for being clear. Finally have a better understanding.

[stoopydmynd]

Thank you sir, my college friends and I here in Portugal always rely on your videos for our exams. Great teaching!

[Mahadeva]

Really great teaching now I understand pointer Tq even I can't understand in class but as watching your video I understand it better than class

[ramankumar]

Took me just 5 mins to fully understand the topics, nice work Neso academy keep it up 👍👍👍

[rafeeqjohn]

I wish we had Youtube back in our times. Nicely explained.

[asura-]

#include <stdio.h>

int main()
{
int *ptr;
printf("%d", *ptr);

return 0;
}

Output:
Segmentation fault

A segmentation fault (aka segfault) is a common condition that causes programs to crash; they are often associated with a file named core . Segfaults are caused by a program trying to read or write an illegal memory location.

[cindaellas]

best pointers video that i have seen so far!

[nashrinfathima]

Really amazing dude
It helps me to understand the content easily
Thank you so much

[Moneysiva]

Please try to upload videos daily..
Im addict to ur voice...

[Rudhra]

Thanks sir it's very easy to understand the concept behind the topic thanks sir 😊😊😊

[JamesBrodski]

Great video. You explained it really well.

[muhammadfouad]

So, the segmentation fault occurs when accessing a portion in memory which is illegal to access, and that happens with uninitialized pointers. The question is: where is the uninitialized pointer stored in the memory layout ?

[dalimh]

i think theres a mistake at 2:32 if you look at the example it says (int *ptr = &x;) which is wrong because it stores an address of a variable in the content of a pointer "type mismatch"

[modemharikumar]

sir when i try to assign a value to the uninitialised pointer the output i get is 2, please explain this sir
#include<stdio.h>
int main()
{
int *ptr;
*ptr = 2;
printf("%d", *ptr);
return 0;
}

output:2

[Ssc_aspira]

Sir plz make a program to check whether a given matrix is magic square or not(sum of items row wise, column wise and diagonal wise are same).
Plz sir I am waiting