My problem with robin_hood::erase about robin-hood-hashing HOT 4 CLOSED

Hello.

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Presented "problem" is not robin hood related. Also the program is incorrect. I recommend reading more about std::unordered_map. At this page is an example how correctly remove elements while iterating the container: https://en.cppreference.com/w/cpp/container/unordered_map/erase That is idomatic way to remove elements while iterating the container (any container, not only unordered map).

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Also consider using non-member function std::erase_if which is available since C++20: https://en.cppreference.com/w/cpp/container/unordered_map/erase_if
This function is overloaded for all standard containers.

from robin-hood-hashing.

iterators are not stable, so you must not do kk.erase(iter++);.

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Thanks very much,it looks like I've been doing it the wrong way before, I've learned a lot

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