[Boost-users] Boost.Serialization and ordering of multimap elements with the same key

Subject: [Boost-users] Boost.Serialization and ordering of multimap elements with the same key
From: Jeremiah Willcock (jewillco_at_[hidden])
Date: 2012-09-24 21:50:40

At least in C++11, std::multimap is required to be stable for elements 
with the same key.  However, serializing and then deserializing a multimap 
with Boost.Serialization can change the order of elements with the same 
key to be different than their order in the input multimap.  Would it be 
possible to change multimap deserialization (since serialization appears 
to preserve the order already) to ensure that the output multimap exactly 
matches the input one?  Thank you.

-- Jeremiah Willcock