Ion Gaztañaga 6464d0e083 Implement new hashing protocol now that Boost.ContainerHash requires C++11: ...

- Hashes trivially scalar types
- For the non scalar types calls unqualified hash_value activating ADL (boost::hash protocol)
- If ADL does not find a viable candidate, a boost::hash direct call is performed via a forward declaration, so that additional candidates are looked up if the user has included boost/container_hash/hash.hpp.

This maintains a high level of compatibility with boost::hash but making Boost.Intrusive independent from Boost.ContainerHash, so that different C++ standard levels can be used and users using different hash functions don't need direct and indirect dependencies brought by Boost.ContainerHash.

2024-01-01 00:02:45 +01:00

6.7 KiB

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