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Fnv1Hash64

Namespace: SnowBank.IO.Hashing · class

Helper for computing 64-bits FNV-1 hashes (Fowler–Noll–Vo)

Methods

Continue

static ulong Continue(ulong hash, byte[] bytes)

Continues computing the 64-bits FNV-1 hash on an additional chunk of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first chunk.
  • bytes — New chunk of bytes to process

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, Slice bytes)

Continues computing the 64-bits FNV-1 hash on an additional chunk of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first chunk.
  • bytes — New chunk of bytes to process

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, byte x)

Continues computing the 64-bits FNV-1 hash on the next byte of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first byte.
  • x — Additional byte

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, short x)

Continues computing the 64-bits FNV-1 hash on the next two bytes of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first byte.
  • x — Additional bytes

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, ushort x)

Continues computing the 64-bits FNV-1 hash on the next two bytes of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first byte.
  • x — Additional bytes

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, int x)

Continues computing the 64-bits FNV-1 hash on the next four bytes of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first byte.
  • x — Additional bytes

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, uint x)

Continues computing the 64-bits FNV-1 hash on the next four bytes of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first byte.
  • x — Additional bytes

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, long x)

Continues computing the 64-bits FNV-1 hash on the next eight bytes of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first byte.
  • x — Additional bytes

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, ulong x)

Continues computing the 64-bits FNV-1 hash on the next eight bytes of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first byte.
  • x — Additional bytes

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, Guid x)

Continues computing the 64-bits FNV-1 hash on the next sixteen bytes of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first byte.
  • x — Additional bytes

Returns: Updated FNV-1 64-bit hash that will include the additional data

static ulong Continue(ulong hash, byte[] buffer, int offset, int count)

Continues computing the 64-bits FNV-1 hash on an additional chunk of data

  • hash — Hash computed for all previous chunks, or the initial seed (FNV1_64_OFFSET_BASIS) if this is the first chunk.
  • buffer — Backing store for the buffer that contains the bytes to process
  • offset — Offset of the first byte to process
  • count — Number of bytes to process

Returns: Updated FNV-1 64-bit hash that will include the additional data

FromByte

static ulong FromByte(byte x)

Computes the 64-bits FNV-1 hash of a Byte

Returns: Corresponding FNV-1 64-bit hash

FromBytes

static ulong FromBytes(byte[] bytes)

Computes the 64-bits FNV-1 hash of a byte array

  • bytes — Bytes to process

Returns: Corresponding FNV-1 64-bit hash

static ulong FromBytes(Slice bytes)

Computes the 64-bit FNV-1 hash of a block of data

  • bytes — Block of data

Returns: 64-bit hash computed over the entire array

static ulong FromBytes(ulong seed, byte[] bytes)

Computes the 64-bits FNV-1 hash of a byte array, with a custom initial seed

  • seed — Initial seed (0 for default)
  • bytes — Bytes to process

Returns: Corresponding FNV-1 64-bit hash

static ulong FromBytes(byte[] bytes, int offset, int count)

Computes the 64-bit FNV-1 hash over a segment of data

  • bytes — Backing store for the buffer that contains the bytes to process
  • offset — Offset of the first byte to process
  • count — Number of bytes to process

Returns: Hash of the buffer section

FromChars

static ulong FromChars(char[] buffer, int offset, int count, Encoding encoding = null)

Computes the 64-bits FNV-1 hash of the utf-8 representation of a string

Returns: Corresponding FNV-1 64-bit hash

FromGuid

static ulong FromGuid(Guid value)

Computes the 64-bits FNV-1 hash of a Guid

Returns: Corresponding FNV-1 64-bit hash

FromInt16

static ulong FromInt16(short x)

Computes the 64-bits FNV-1 hash of a Int16

Returns: Corresponding FNV-1 64-bit hash

FromInt32

static ulong FromInt32(int x)

Computes the 64-bits FNV-1 hash of a Int32

Returns: Corresponding FNV-1 64-bit hash

FromInt64

static ulong FromInt64(long x)

Computes the 64-bits FNV-1 hash of a Int64

Returns: Corresponding FNV-1 64-bit hash

FromString

static ulong FromString(string text, bool ignoreCase, Encoding encoding = null)

Computes the 64-bits FNV-1 hash of the utf-8 representation of a string

  • text — String to process
  • ignoreCase — If true, the string is converted to lowercase (invariant) before conversion to utf-8
  • encoding — Encoding used to convert the string into bytes (utf-8 by default)

Returns: Corresponding FNV-1 64-bit hash

FromUInt16

static ulong FromUInt16(ushort x)

Computes the 64-bits FNV-1 hash of a UInt16

Returns: Corresponding FNV-1 64-bit hash

FromUInt32

static ulong FromUInt32(uint x)

Computes the 64-bits FNV-1 hash of a UInt32

Returns: Corresponding FNV-1 64-bit hash

FromUInt64

static ulong FromUInt64(ulong x)

Computes the 64-bits FNV-1 hash of a UInt64

Returns: Corresponding FNV-1 64-bit hash

Fields

FNV1_64_OFFSET_BASIS

const ulong FNV1_64_OFFSET_BASIS

FNV1_64_PRIME

const ulong FNV1_64_PRIME