Safe to get &std list item?

Question

Is it safe to do the following?

std::list<Something> someList;

...
someList.push_back(Something(8));
Something* something = &someList.back();

I would think it is safe but I'm not completely sure.

Thanks

Even though that's valid code, if you're using raw pointers to reference things in C++ you might want to consider a different mechanism, such as using an iterator or a reference. — fluffy, Jun 19 '12 at 05:28

score 3 · Accepted Answer · edited May 23 '17 at 11:49

3

Yes the object will be valid until you erase it from the someList. See Iterator Invalidation Rules for information about when the objects can get destroyed for various container operations.

edited May 23 '17 at 11:49

Community

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answered Jun 19 '12 at 04:40

Naveen

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Yes, hardly anything will invalidate a pointer or reference to a `list` element. – Mark Ransom Jun 19 '12 at 04:42

Safe to get &std list item?

1 Answers1