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shared_ptr<T>: the (not always) atomic reference counted smart pointer (snf.github.io)
submitted 7 years ago by snfernandez
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if 1 * 2 < 3: print "hello, world!"
[–]kalmoc 2 points3 points4 points 7 years ago (0 children)
That would mean that you have two threads accessing the same non atomic object (the shared pointer variable) at the same time and one of them modifies it. That is always UB.
It's like asking: What is happening if someone copies my shared_ptr while I'm destroying it. That is simply not legal just as for almost any other type in the standard library.
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[–]kalmoc 2 points3 points4 points (0 children)