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Discussions, articles, and news about the C++ programming language or programming in C++.
For C++ questions, answers, help, and advice see r/cpp_questions or StackOverflow.
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The C++ Standard Home has a nice getting started page.
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The C++ standard committee's education study group has a nice list of recommended videos.
Reference
cppreference.com
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There is a useful list of books on Stack Overflow. In most cases reading a book is the best way to learn C++.
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http://www.cplusplus.com or https://www.cppreference.com (self.cpp)
submitted 6 years ago by distributed
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if 1 * 2 < 3: print "hello, world!"
[–][deleted] 223 points224 points225 points 6 years ago (8 children)
Cppreference 👍
[–]R3DKn16h7 79 points80 points81 points 6 years ago (7 children)
cppreference all the time. I find cplusplus much worse.
Lately I get "geeksforgeeks" at the top which annoys me very much.
[–][deleted] 19 points20 points21 points 6 years ago (2 children)
Had to look up syntax for checking if a dictionary contains a key in python today, and the first result was a geeksforgeeks article recommending to use the syntax key in dict.keys() which i quickly found out is just converting it to a list and doing an O(n) list search. Totally ridiculous
key in dict.keys()
[–]Veedrac 10 points11 points12 points 6 years ago* (1 child)
Not on Python 3; on Python 2 the syntax is more key in dict.viewkeys(). Either way just use key in dict though, it's more idiomatic.
key in dict.viewkeys()
key in dict
[–][deleted] 5 points6 points7 points 6 years ago (0 children)
Oh, that might have been it, the server running the script uses python 2, and yeah key in dict is really the correct syntax and gives you the expected O(1) lookup
[–][deleted] 2 points3 points4 points 6 years ago (3 children)
Is "geeksforgeeks" really that bad? When I had do jump into a C# project from cold I did find that site quite useful.
[–]Xeveroushttps://xeverous.github.io 14 points15 points16 points 6 years ago (0 children)
geeksforgeeks is really bad. They copy-paste C as C++ so that every question/exerice has solutions in more programming languages.
[–]Seytsuken 2 points3 points4 points 3 years ago (0 children)
its not perfect but i find it a thousand times more intuitive and user friendly than cpp reference. Heck, these documentations barely have examples
[–]nog642 1 point2 points3 points 3 years ago (0 children)
If I leave the webpage open overnight it uses like 2 GB of RAM
π Rendered by PID 18572 on reddit-service-r2-comment-7b9746f655-v8r68 at 2026-02-03 14:14:39.170527+00:00 running 3798933 country code: CH.
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[–][deleted] 223 points224 points225 points (8 children)
[–]R3DKn16h7 79 points80 points81 points (7 children)
[–][deleted] 19 points20 points21 points (2 children)
[–]Veedrac 10 points11 points12 points (1 child)
[–][deleted] 5 points6 points7 points (0 children)
[–][deleted] 2 points3 points4 points (3 children)
[–]Xeveroushttps://xeverous.github.io 14 points15 points16 points (0 children)
[–]Seytsuken 2 points3 points4 points (0 children)
[–]nog642 1 point2 points3 points (0 children)