I hope this was helpful! Here is the course link I mentioned in the video. New C/C++ course: calcur.tech/c-cpp-newsletter
@vinniciusrosa8284
8 ай бұрын
I do not know yet how to pass unique_ptr as reference to a function. void whatever(...,std::unique_ptr &engine); - - - The call: whatever(engine). It should work, but do not compile.
@Nathan00at78Uuiu
Жыл бұрын
let's go. This is what we need. Been using your lessons for learning anything. So far been great. thanks.
@andreasguettinger6706
Жыл бұрын
As somebody who learned and uses mainly C++98, I'm glad to see videos about these newer C++ concepts I often forget about. 👍
@OlliS71
3 күн бұрын
shared_ptr is for sharing between threads, i.e. when handling shared data to another thread. Within a thread it's too slow because the control-block is atomically updated.
@billbez7465
8 ай бұрын
Very well done. There were other videos on smart pointers that left me a bit confused. Yours is clear & understandable. Thank you
@aminramazanifar9743
Жыл бұрын
As great as always. Cannot wait to see the course. Thanks!
@MichaelCohen-sb7tw
6 ай бұрын
Thanks Caleb. Very clear examples and explanations.
@skauddy755
Ай бұрын
Very clear explanation
@xbiohazardx7312
Жыл бұрын
This video is very helpful, it's make me figured it out in one video huge thanks!
@Sluggernaut
5 ай бұрын
11:27 cracked up so hard. I do this all of the time when making videos. Edit: wth? How did that even compile at 13:12. You have to declare the data type when making a shared pointer. Weird.
@michaeldamolsen
Ай бұрын
"How did that even compile at 13:12. You have to declare the data type when making a shared pointer." - Since C++ 17 there are deduction guides which allow weak_ptr to take over the type from the shared_ptr and the other way around.
@古川範和
Жыл бұрын
This is one of the best coding tutorial videos I've watched. Clear, concise and complete. Thank you so much for your great work!
@suryadon947
8 ай бұрын
Best video for smart pointers Great bro🎉
@ArtVandelayInc
Жыл бұрын
Great tutorial! Thank you
@dwivedys
4 ай бұрын
Hey good presentation Caleb!
@Brad_Script
2 ай бұрын
what I find weird about this code is that you are allowed to return a unique_ptr from a function without using the move function. Is seems that the compiler is smart enough to realize you are moving the unique_ptr from the function to the caller of the function.
@alirezaarttam3344
Жыл бұрын
Awsome. Thanks!
@abhishekkhanchi9105
Жыл бұрын
Hi Caleb i ran shared pointer example.its giving error . error:smart_p3.cpp:6:34: error: conversion from ‘’ to non-scalar type ‘std::shared_ptr’ requested 6 | std::shared_ptr a= std::make_shared; during compilation . which c++ compiler ur using.. I tried this on g++: gcc version 9.4.0 Please guide Thanks Abhishek
@codebreakthrough
Жыл бұрын
You have it should be (5) It looks like it thinks you are trying to use a function for the type because you put the () inside the
@abhishekkhanchi9105
Жыл бұрын
thanks alot caleb(@@codebreakthrough ) it work for me..
@hiankun
Ай бұрын
Ownership, lifetime,... After learning some basic Rust, all of these make sense. 😀🦀
@NoSpeechForTheDumb
Ай бұрын
As a user, you shouldn't be using new/delete anymore. As a library developer, you need it to implement RAII.
@nokia_n-gage
11 ай бұрын
Thanks!
@furkankaraslan9040
Жыл бұрын
so unique allows one owner shared allows unlimited owner and weak one makes 0 owner at total and we need least one owner to keep scoped value alive, did i understand correctly? if i am not someone correct me please.
@NoSpeechForTheDumb
Ай бұрын
weak_ptr allows unlimited owners like shared_ptr but doesn't contribute to the reference counter. So weak_ptr is always used in connection with shared_ptrs and if the last shared_ptr goes out of scope the ressource is deleted, no matter how many weak_ptrs still point at it.
@midewestmond9442
Жыл бұрын
Why you using camel case btw and more can you make a video how to setup an editor for c++ development
@fpldaily5172
Жыл бұрын
hey bro. Please do a java springboot video or course?
@Antagon666
Жыл бұрын
The level of abstraction is on a really akward level. On one hand yeey nice, you don't have to delete pointers manually. On the other hand, if you need to do anything more advanced like cloning, deep and or shallow copy and storing in containers, that requires even more work, knowledge and frustration than managing raw memory directly. I find using smart pointers in very simple situations, where it's not necessary at all and in complicated situations I use raw pointers, just because I hate thinking about the obscure behavior of smart pointers.
@snesmocha
11 ай бұрын
Isn’t that what smart pointers?
@KaiDevvy
9 ай бұрын
Smart pointers are a fairly thin wrapper in terms of added complexity. It's not a huge difference in understanding to use them as opposed to raw pointers, and the benefits of clearly defined ownership and automatic deallocation is monumental for the little abstraction. To me though, something that bothers me is just how verbose it is. Going from * to std::shared_ptr is a pain in the ass. Especially when you're making collections of smart pointers or the like
@赛尼木
7 ай бұрын
cystall clear!
@CCCole1
Жыл бұрын
P.S. Love the content
@sent4dc
Жыл бұрын
4:39 WRONG! 2 memory leaks.
@y_x2
3 күн бұрын
Absolutely ridiculous... simply put variable a outside main!
@hawks3109
Жыл бұрын
Don't use auto in production code, the rest is good, but auto can make bad assumptions when you start getting into nested data types and other techniques that come up in production code. auto is dangerous and could lead to bad assumptions by the compiler.
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