Https://Www.Cplusplus.Com/Reference/Map/Map/Operator[]/ "If the function inserts a new element, concurrently iterating ranges

That is because when we insert element in map which is internally implemented as balanced binary tre more appropriate which is red Balck tree it re-arranges all nodes to keep the tree balanced So if there is any iterator accessing any node concurrently it can be invalidated one

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10.02.2022

artemetra 🇺🇦 [less active] · Accepted Answer

artemetra 🇺🇦 [less active]

i think it refers to adding a new element to a container whilst iterating over it, but i'm not sure

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10.02.2022

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Https://Www.Cplusplus.Com/Reference/Map/Map/Operator[]/ "If the function inserts a new element, concurrently iterating ranges

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