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59e2a562ed
* deprecated boost::unordered::hash_is_avalanching in favor of boost::hash_is_avalanching * replaced deprecation message with simpler BOOST_HEADER_DEPRECATED
33 lines
947 B
Plaintext
33 lines
947 B
Plaintext
[#hash_traits]
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== Hash Traits
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:idprefix: hash_traits_
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=== `<boost/unordered/hash_traits.hpp>` Synopsis
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[listing,subs="+macros,+quotes"]
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-----
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#include <boost/container_hash/hash_is_avalanching.hpp>
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namespace boost {
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namespace unordered {
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using boost::hash_is_avalanching;
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} // namespace unordered
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} // namespace boost
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-----
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[horizontal]
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Note:;; This header is deprecated. Use instead
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`link:../../../../../container_hash/doc/html/hash.html#ref_hash_is_avalanchinghash[boost::hash_is_avalanching]`
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defined in
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`link:../../../../../container_hash/doc/html/hash.html#ref_boostcontainer_hashhash_is_avalanching_hpp[<boost/container_hash/hash_is_avalanching.hpp>]`.
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Open-addressing and concurrent containers
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use the provided hash function `Hash` as-is if `hash_is_avalanching<Hash>::value` is `true`; otherwise, they
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implement a bit-mixing post-processing stage to increase the quality of hashing at the expense of
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extra computational cost.
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---
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