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Asked: 2026-05-13T22:02:53+00:00

I need to keep track of std::set element by saving the iterator returned by

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I need to keep track of std::set element by saving the iterator returned by set.find().

My questions is does insertion and removing other elements invalidates the obtained iterator? From a simple test I did I can see it is not, but I’d like to ensure this feature is by design.

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  1. Editorial Team

    It never invalidates iterators or pointers/references to the elements. Only if you remove the element itself does the iterator or pointer/reference become invalid.

    23.1.2/8:

    The insert members shall not affect the validity of iterators and references to the container, and the erase members shall invalidate only iterators and references to the erased elements.

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