ITERATORS in C++

This video was sponsored by Skillshare.

[admiralspyro]

University: "As a CS student you will always have to learn the newest technologies."
Also university: "Yea you gonna use c++-98, cause thats what the professor learned back in the day and he never bothered to update his lecture for 20 years."

[corbinlenning]

Love how he mentioned university using c++ 2003 but I was using c++ 98 in my university and i graduated last year.

[saraswathishanmugamoorthy]

I was recently given a C++ assessment for C++03, this was the first time a company interviewed me for such an old version. Seems like certain companies still have 20 years to catch up.

[magicweaponr]

As a JS developer learning C++, seeing the structured binding at the end made me smile. It literally looks the same, and in JS is called destructuring. Nice video

[mattshu]

you make my self taught journey of c++ so much easier. Thank you so much

[sebastianzander]

Another good reason to use iterators in basic data structures (that you could access by an index) is to have iterators with different behaviors e.g. a reverse iterator (trivial), an iterator that gives you the next random element or that accesses the elements in a specific order or that applies some filter function.

[MichaelYoussry]

Note that the example with structured bindings will copy the elements. To iterate over a reference to the elements use:
for (auto& [key, value] : map)

[practicalsoftwaremarcus]

absolutely amazing video. Each video of yours make me love the language even more. I use it a lot in embedded systems and they way C++ elegantly interfaces with the hardware is simply beatiful .

[rawgame]

Additionally, would be really useful to mention about the usage of the reference '&' for the iterator it self. I.e. instead of using "for (auto kv : map)" - using "for (const auto& kv : map)" would eliminate unnecessary copies when iterating.

[Rahulsharma-rgce]

This is one of the best explanations of iterators I have seen, I was banging my head around google for so long! thanks

[sahilaujla]

Just started my journey of c++ by your playlist....am really really excited 😃

[irfanjames]

You teach soo much clearly and go just one step deeper

[ebukaezike]

Me : What are iterators ?
Cherno: Iterators are used to iterate .



Cherno: Sometimes my genius is its almost frightening

[rishitsingh]

Great! I was waiting for a good tutorial on this. Thanks Cherno.

[harounlouati]

Thanks a lot. I really like the way you explain the iterators. The examples are simple and clear.

[not_ever]

I feel kinda smug that my uni has made it all the way to C++ 11.

[raulyjimenez]

This video is crafted overly well and i love it. Thank you for the thorough explanation of iterators.

[nextrie]

Brilliant tutorial on iterators, Cherno. Always good to have such refreshers!

[aqezzz]

Another excellent video! I wish I had these when I was learning this stuff. Even though most of these are not new to me I never miss a single c++ series video because they are so well done. Keep it up!

[cliffmathew]

Thank you for clarifying this, which helped me make sense of it right away: Iterators appeared in the language because not all collections can be iterated over by an index.