reinterpret_cast In C++

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In this video we will learn what is reinterpret_cast is used for and there are few points we should always remember about it as follows:
1. reinterpret_cast can perform dangerous conversions because it can typecast any pointer to any other pointer.
2. reinterpret_cast is used when you want to work with bits.
3. The result of a reinterpret_cast cannot safely be used for anything other than being cast back to its original type.
4. we should be very careful when using this cast.
5. if we use this type of cast then it becomes non-portable product.
#reinterpret_cast #cpp #interviewquestions #programming #computerscience #softwareengineering #tutorial

[@CppNuts]

Hi everyone, Don't forget to hit LIKE and SUBSCRIBE button for more videos like this!!
And this will help me a-lot.

[@DlcEnergy]

10:36 and this was how c++ was invented

[@dcubrakovic1]

This explanation is much better than many others, because you showed the physical locations and what is inside them. Great!

[@_myron]

When using this cast it is recommended to wear protective gear

[@CppNuts]

Correct!! You should be knowing what are you doing.

[@vaibhavgupta6u]

one of the toughest and confusing topics in C++ , thanks dude for making it simple ,but being a professional I am still waiting for the actual implementation in real time project like darlkLevis said .

[@CppNuts]

sure dude, but i am uploading basic c++ and sorting algorithms. So it may take little bit more time.

[@talhahbhuiyan9390]

Thank you for this video. I finally understand the concept completely.

[@haydengorringe9158]

A very clear explanation! Thanks for the tutorial!

[@glennmarkabalos6657]

man! i really love your c++ tutorials!

[@CppNuts]

Thanks dude. :)

[@kaajalsharma1225]

thanks Sir. i was very afraid of this topic. now it’s pretty much clear to me..

[@CppNuts]

Welcome, thanks for the comment.

[@adityathakur1961]

This is the best explanation of this topic on YT

[@CppNuts]

Thanks man.

[@k.r.6006]

Thank you for explaining with diagrams........thank you for your great work

[@drmostafamahammad]

good work bro.. only one packing issue at 11:30.. there is an empty packing byte after the char.

[@vpodobaev]

I like very much the way you say "ok?" in your videos! :) So nice and calming! :)) Like a doctor. :))))

[@CppNuts]

You are the first one who feels like this..
Thanks man..

[@vpodobaev]

@@CppNuts Thank you for your videos. I'm enhancing my C++ knowledge. (Learning new features). Your videos are very helpful! 👍🏻 Very detailed and professional. 👍🏻🇷🇺🤝🏼🇮🇳

[@CppNuts]

Thanks..

[@ApoorvSaxena8]

very helpful thanks

[@CppNuts]

Glad it helped

[@user-rz1hv]

"trust me" - I trust you with every cell of my body... 😄

[@quant-prep2843]

bro this is great tutorial my friend

[@CppNuts]

Glad you liked it

[@Byynx]

That first case senario is very important to understand what casting is. Before i thought casting between 2 objs meant that memory space from now on belongs to a certain object, but now i see we are just saying to the compiler to trust us and use that space in memory to store data of the first obj, but we still can writte data of the 2nd obj we've used to cast to the same space in memory. Of course this is wrong and danger.

[@soorajkulkarni1902]

The example is very good one

[@CppNuts]

Thanks

[@mba2ceo]

what is better ? f1.write(reinterpret_cast(&z),sizeof(z)); or f1.write(reinterpret_cast(&z),sizeof(z)); z are Stucts

[@caleb7799]

This was very good.

[@CppNuts]

Thanks

[@akbaransari4358]

really awesome and easy to understand ,thanks a lot

[@CppNuts]

Thanks for you comment dude!!

[@TheSAMARINDIMA]

You are the best! ^^

[@aidan3574]

Hello!
So I've been looking up for some basic examples with reinterpret_cast and found this program:
#include
using namespace std;
int main()
{
int x=65;
int* p = &x;
char* ch = reinterpret_cast(p);
cout

[@rivendzi]

You definitely found your answer by now. But maybe it will help someone else - that's how std::cout is implemented to handle char pointers. To actually get address of char* using std::cout you have to cast the pointer to void pointer(preferably - static_cast) and then pass it to std::cout stream.

[@veereshranjan3519]

Hi , I think this pointer will come in below syntax tothe class's member function implicitly:
Banana const *this
But you said it will come like
Const banana* this

[@zkwei2233]

thx, this series of video are very detailed.

[@CppNuts]

Thanks man..

[@PaulMetalistulNegru]

One observation: this video is intended for beginners, so please use delete for the pointers in the first example.

[@CppNuts]

Thanks man, you are correct.

[@codingdecoding7675]

What is difference between reinterpret_cast and c-style cast?
class test {
int i;
int ii;
};
test t;
int *p = reinterpret_cast(&t);
int *pp = (int *)(&t);
Are both same?

[@CppNuts]

In c style cast first it will try to cast with static cast and if cant it will apply reinterpret cast. But with directly applying reinterpret_cast it will do reinterpret cast only.
So bottom line is c_style cast actually choose among all cast but in using new style casting you explicitly tell what cast to use.

[@codingdecoding7675]

@@CppNuts Thank you, this minor distinction hard to catch.

[@rajeshpawar1696]

Sir I have one problem with reinterpret cast in my project. Can you help me to solve this error

[@rajeshpawar1696]

Sir there is an error in this statement
If(infile.read(reinterpret_cast(this)) >0,
The error is in ">" operator.
Please give me solution

[@ranjanrohit64]

thankyou sir,,you are really awesome

[@CppNuts]

You are welcome dude. :D

[@vinaykumar-no2zh]

What was the difference between static-cast and reinterpret cast

[@Byynx]

But reinterpret_cast is still a tag thing right so the code can become more readable, or it allows casts that static_cast wouldn't allow it?

[@Byynx]

Or reinterpret_cast it's like a C style cast that lets do everything.

[@DarkLevis]

Thanks for the great video but what's the point of this still? Why or when would I need to access those struct values via intetpret cast? As it's safe to access them normally.

[@CppNuts]

+DarkLevis i will create video for your answer.
OR i will comment here wait for some time.

[@user-sz9wm4rm5c]

If you use shared memory for IPC, you really need this feature.

[@atulanand1587]

example 2 , will work differently in little endian and big endian machine.

[@tarunbagade4287]

great

[@CppNuts]

Thanks man.

[@BloodHaZaRd666]

loved

[@CppNuts]

Thanks man..

[@handover007]

Where does this keyword reinterpret_cast come from even without adding any header file . Also even without using the operator we can cast

[@madhursangeet6447]

Hi May i know which compiler are you using.

[@CppNuts]

Editor is Sublime text.
compiler is g++6 Mingw.

[@rahulr9301]

Perfect bro!!!

[@CppNuts]

Thanks bro..

[@WowPlusWow]

🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼

[@CppNuts]

Namaste...

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[@Hack_Neuron_To_DSA]

Suggestions: i love your content but please remove these advertisement content and report them. These things can make your channel more repellable

[@miroslawzn]

ok? ok. Do not ask "ok?" all the time - this is really anoying.

[@CppNuts]

Yes.. these are very old videos of mine, now you won't find anything like this in new videos.