Comments on: How to Transfer unique_ptrs From a Set to Another Set https://www.fluentcpp.com/2018/11/06/how-to-transfer-unique_ptrs-from-a-set-to-another/ Jonathan Boccara's blog Tue, 18 Dec 2018 19:04:37 +0000 hourly 1 https://wordpress.org/?v=6.5.3 By: Piotr Nycz https://www.fluentcpp.com/2018/11/06/how-to-transfer-unique_ptrs-from-a-set-to-another/#comment-1442 Tue, 06 Nov 2018 21:22:00 +0000 https://www.fluentcpp.com/?p=2986#comment-1442 To make such stealing (do not make it at work – full of ugly hacks – but no need to copy):

We need stealing pop_front iterator from source:
1. is input iterator (one pass) i.e. operator ++ does nothing
2. operator * just get front from source, const_cast it to lvalue_ref – and call release on it (safe – if nullptr is first in order) – then erase begin, and returns just stolen value

live demo: https://wandbox.org/permlink/P9OKYwkxGqMnTGT2

]]> By: jft https://www.fluentcpp.com/2018/11/06/how-to-transfer-unique_ptrs-from-a-set-to-another/#comment-1441 Tue, 06 Nov 2018 11:14:00 +0000 https://www.fluentcpp.com/?p=2986#comment-1441 Have you got compilable example(s) that could be shared please?

]]>