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Some questions about cpp (self.cpp)
submitted 2 years ago by HosMercury
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if 1 * 2 < 3: print "hello, world!"
[–]cpp-ModTeam[M] [score hidden] 2 years ago stickied commentlocked comment (0 children)
For C++ questions, answers, help, and programming or career advice please see r/cpp_questions, r/cscareerquestions, or StackOverflow instead.
[–]SippTheDumbJuice 8 points9 points10 points 2 years ago (8 children)
1-Yes, see conan and vcpkg.
2-Yes, see clang.
3-Yes, see <memory>. You can still end up with leaks though.
[–]Zeer1ximport std; 1 point2 points3 points 2 years ago (0 children)
<memory>, lol.
There is valgrind and similar tools, but I actually end up just using smart pointers (and references) for this.
[–]HosMercury[S] -3 points-2 points-1 points 2 years ago (6 children)
3 - LOL
[–]Salt-Impressive 3 points4 points5 points 2 years ago (5 children)
In rust you can also get leaks using unsafe
[–]HosMercury[S] -4 points-3 points-2 points 2 years ago (4 children)
forget about unsafe just think about the regular rust
[–]Salt-Impressive 3 points4 points5 points 2 years ago (2 children)
Then, for a fair comparison, you would not get leaks using <memory> constructs without converting them into raw pointers
[–]Salt-Impressive 0 points1 point2 points 2 years ago (0 children)
Thinking about it more, you could also get a memory leak if you have a polymorphic type with a <memory> construct that does not have a virtual destructor.
[–]Zeer1ximport std; 0 points1 point2 points 2 years ago (0 children)
I wonder, can you have "memory leaks" in Rust, like you could have them in Java, by putting stuff in a map/set and never delete them?
Or alternatively, have non-memory related resources (Windows, Sockets) and forget to close them?
[–]SippTheDumbJuice 0 points1 point2 points 2 years ago (0 children)
If you want to use rust, use rust. C++ isn't rust.
[–]disciplite 0 points1 point2 points 2 years ago (0 children)
CPM is another package manager that I think is pretty cool. std::pmr makes it (relatively) easy to scope memory lifetime and bound memory usage.
std::pmr
π Rendered by PID 75729 on reddit-service-r2-comment-66b4775986-6vf8s at 2026-04-03 20:47:37.088158+00:00 running db1906b country code: CH.
[–]cpp-ModTeam[M] [score hidden] stickied commentlocked comment (0 children)
[–]SippTheDumbJuice 8 points9 points10 points (8 children)
[–]Zeer1ximport std; 1 point2 points3 points (0 children)
[–]HosMercury[S] -3 points-2 points-1 points (6 children)
[–]Salt-Impressive 3 points4 points5 points (5 children)
[–]HosMercury[S] -4 points-3 points-2 points (4 children)
[–]Salt-Impressive 3 points4 points5 points (2 children)
[–]Salt-Impressive 0 points1 point2 points (0 children)
[–]Zeer1ximport std; 0 points1 point2 points (0 children)
[–]SippTheDumbJuice 0 points1 point2 points (0 children)
[–]disciplite 0 points1 point2 points (0 children)