Class HashId¶
Defined in File hash-id.h
Class Documentation¶
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class
aslam::HashId¶ 128 bit hash.
Can be used as key to unordered containers.
Subclassed by aslam::Id
Public Functions
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inline
HashId()¶
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inline
HashId(const uint64_t source[2])¶
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inline void
fromUint64(const uint64_t source[2])¶
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inline void
toUint64(uint64_t destination[2]) const¶
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inline const std::string
hexString() const¶ Returns hexadecimal string for debugging or serialization.
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inline const std::string
shortHex() const¶ Returns a short hexadecimal tag.
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inline bool
fromHexString(const std::string &hexString)¶ Deserialize from hexadecimal string.
Serialization and Deserialization could be made more performant by using blobs.
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inline size_t
hashToSizeT() const¶ Rehashes the 128 bit hash to a 32/64 bit hash that can be used in STL containers.
This means that we will get collisions on the buckets, which is fine since we can disambiguate the actual hashes using operator==. So this does not increase the probability of ID collision.
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inline size_t
hashToSizeTFast() const¶ Rehashes the 128 bit hash to a 32/64 bit hash that can be used in STL containers.
This means that we will get collisions on the buckets, which is fine since we can disambiguate the actual hashes using operator==. So this does not increase the probability of ID collision. Version that skips prime multiplication for seeds that are already well distributed.
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inline void
randomize()¶ Randomizes to ID seeded from the nanosecond time of the first call of this function.
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inline void
setInvalid()¶ Invalidation mechanism.
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inline bool
isValid() const¶
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inline