Erase without invalidating iterator looking for love and dating on line


02-Dec-2019 19:44

consider this pseudo code:- int Data Item::gen Derived () It selects a particular value in the mm and finds the lower and upper bounds on their location. -- Nick Keighley You did not find that statement because it it is false.

It then loops on all of them calculating a derived value for each. The standard says about associative containers [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.

Consider this as a demo and use it like you want to.

EDIT - Flooding/Recursive Improvement - High Speed Up and much more reliable I discovered that sometimes the deferred transactions get cancelled and it takes much time to delete all records.

The elements of STL containers are allowed to throw exceptions (except in destructors).

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. IO Stack Exchange is a question and answer site for users and developers of distributed applications built on top of the blockchain operating system, EOS. Disclaimer: Be sure to block all other actions that would rely on the index, because data will invalidate during deletion and new data maybe deleted as well.

The standard says about associative containers [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. Ok so the iterator isn't invalid, but back to my pseudo code:- Data Item:: Multi Map::const_iterator iter = data Items.lower_bound(parameter Reference); Data Item:: Multi Map::const_iterator end = data Items.upper_bound(parameter Reference); while (iter !

You did not find that statement because it it is false.It hints that concurrent traversal is nevertheless possible if synchronized with concurrent erasure.Let’s see what can happen while traversing while insert and lookup operations are also occurring.There's something that seems to be doing that (there's a lot of code so isn't definitely the mm calls at fault).

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-- Nick Keighley Ok so the iterator isn't invalid, but back to my pseudo code:- Data Item:: Multi Map::const_iterator iter = data Items.lower_bound(parameter Reference); Data Item:: Multi Map::const_iterator end = data Items.upper_bound(parameter Reference); while (iter !I'm not familiar to multimap, but I suppose that depending on the position of the new element inserted, you could access it too, and calculate a new item from that item calculated previously.