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Diffstat (limited to 'ml/dlib/dlib/general_hash/murmur_hash3_abstract.h')
| -rw-r--r-- | ml/dlib/dlib/general_hash/murmur_hash3_abstract.h | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/ml/dlib/dlib/general_hash/murmur_hash3_abstract.h b/ml/dlib/dlib/general_hash/murmur_hash3_abstract.h deleted file mode 100644 index ef7bc0b41..000000000 --- a/ml/dlib/dlib/general_hash/murmur_hash3_abstract.h +++ /dev/null @@ -1,125 +0,0 @@ -// Copyright (C) 2011 Davis E. King (davis@dlib.net) -// License: Boost Software License See LICENSE.txt for the full license. -#undef DLIB_MURMUR_HAsH_3_ABSTRACT_Hh_ -#ifdef DLIB_MURMUR_HAsH_3_ABSTRACT_Hh_ - -#include "../uintn.h" -#include <utility> - -namespace dlib -{ - -// ---------------------------------------------------------------------------------------- - - uint32 murmur_hash3 ( - const void* key, - const int len, - const uint32 seed = 0 - ); - /*! - requires - - key == a pointer to a block of memory len bytes long - ensures - - returns a 32bit hash of the len bytes pointed to by key. - - Each value of seed results in a different hash function being used. - (e.g. murmur_hash3(key,len,0) should generally not be equal to murmur_hash3(key,len,1)) - - This function is machine architecture agnostic and should always give the same - hash value when presented with the same inputs. - - This hashing algorithm is Austin Appleby's excellent MurmurHash3_x86_32. - See: http://code.google.com/p/smhasher/ - !*/ - -// ---------------------------------------------------------------------------------------- - - inline uint32 murmur_hash3_2 ( - const uint32 v1, - const uint32 v2 - ); - /*! - ensures - - returns a 32bit hash of the two integers given to this function. - - This function is machine architecture agnostic and should always give the same - hash value when presented with the same inputs. - - This hashing algorithm is Austin Appleby's excellent MurmurHash3_x86_32. - See: http://code.google.com/p/smhasher/ - !*/ - -// ---------------------------------------------------------------------------------------- - - inline uint32 murmur_hash3_3 ( - const uint32 v1, - const uint32 v2, - const uint32 v3 - ); - /*! - ensures - - returns a 32bit hash of the three integers given to this function. - - This function is machine architecture agnostic and should always give the same - hash value when presented with the same inputs. - - This hashing algorithm is Austin Appleby's excellent MurmurHash3_x86_32. - See: http://code.google.com/p/smhasher/ - !*/ - -// ---------------------------------------------------------------------------------------- - - std::pair<uint64,uint64> murmur_hash3_128bit ( - const void* key, - const int len, - const uint32 seed = 0 - ); - /*! - requires - - key == a pointer to a block of memory len bytes long - ensures - - returns a 128bit hash (as two 64bit numbers) of the len bytes pointed to by key. - - Each value of seed results in a different hash function being used. - (e.g. murmur_hash3_128bit(key,len,0) should generally not be equal to - murmur_hash3_128bit(key,len,1)) - - This function is machine architecture agnostic and should always give the same - hash value when presented with the same inputs. - - This hashing algorithm is Austin Appleby's excellent MurmurHash3_x64_128. - See: http://code.google.com/p/smhasher/ - !*/ - -// ---------------------------------------------------------------------------------------- - - std::pair<uint64,uint64> murmur_hash3_128bit ( - const uint32& v1, - const uint32& v2, - const uint32& v3, - const uint32& v4 - ); - /*! - ensures - - returns a 128bit hash (as two 64bit numbers) of the 4 integers given to this - function. - - This function is machine architecture agnostic and should always give the - same hash value when presented with the same inputs. - - This hashing algorithm is Austin Appleby's excellent MurmurHash3_x64_128. - See: http://code.google.com/p/smhasher/ - !*/ - -// ---------------------------------------------------------------------------------------- - - std::pair<uint64,uint64> murmur_hash3_128bit_3 ( - uint64 k1, - uint64 k2, - uint64 k3 - ); - /*! - ensures - - returns a 128bit hash (as two 64bit numbers) of the 3 integers given to this - function. - - This function is machine architecture agnostic and should always give the - same hash value when presented with the same inputs. - - This hashing algorithm is Austin Appleby's excellent MurmurHash3_x64_128. - See: http://code.google.com/p/smhasher/ - !*/ - -// ---------------------------------------------------------------------------------------- - -} - -#endif // DLIB_MURMUR_HAsH_3_ABSTRACT_Hh_ - - |