hashes

nimony/lib/std/hashes.nim

• type Hash = uint64

  Integer type carrying hash values; combine with !& and finish with !$.

• type Hashable = concept
    func hash(a: Self): uint64

• func !&(h: uint64; val: uint64): uint64

  Mixes a hash value h with val to produce a new hash value.

• func !$(h: uint64): uint64

  Finishes the computation of the hash value.

• func hash(s: string): uint64

  An inline shim for system.hashStr. The mix is !& / !$ over the chars; hashStr fetches the first AlwaysAvail of them from the bytes word.

• func hash(u: uint64): uint64
• func hash(x: int64): uint64
• func hash(x: int32): uint64
• func hash(x: char): uint64
• func hash(x: bool): uint64
• func hash(x: float64): uint64
• func hash(x: float32): uint64
• func hash(x: T): uint64
• func hash(x: tuple[A, B]): uint64
• func hash(x: tuple[A, B, C]): uint64

  Computes a hash value for x.

• func hash(x: seq[T]): uint64

  Computes a hash value for x, mixing each element's hash in order.

• func nextTry`body(h`b: uint64; maxHash`b: int64): uint64

  Advances a hash probe index inside 0 .. maxHash (linear probing helper).

• func nextTry(h: uint64; maxHash: int64): uint64

  Advances a hash probe index inside 0 .. maxHash (linear probing helper).

• func hashIgnoreStyle(x: string): uint64

  Efficient hashing of strings; style is ignored.

  Note: This uses a different hashing algorithm than hash(string).

  See also:

  • hashIgnoreCase
• func hashIgnoreStyle`body(sBuf`b: string; sPos`b: int64; ePos`b: int64): uint64

  Efficient hashing of a string buffer, from starting position sPos to ending position ePos (included); style is ignored.

  Note: This uses a different hashing algorithm than hash(string).

  hashIgnoreStyle(myBuf, 0, myBuf.high) is equivalent to hashIgnoreStyle(myBuf).

• func hashIgnoreStyle(sBuf: string; sPos: int64; ePos: int64): uint64

  Efficient hashing of a string buffer, from starting position sPos to ending position ePos (included); style is ignored.

  Note: This uses a different hashing algorithm than hash(string).

  hashIgnoreStyle(myBuf, 0, myBuf.high) is equivalent to hashIgnoreStyle(myBuf).

• func hashIgnoreCase(x: string): uint64

  Efficient hashing of strings; case is ignored.

  Note: This uses a different hashing algorithm than hash(string).

  See also:

  • hashIgnoreStyle
• func hashIgnoreCase`body(sBuf`b: string; sPos`b: int64; ePos`b: int64): uint64

  Efficient hashing of a string buffer, from starting position sPos to ending position ePos (included); case is ignored.

  Note: This uses a different hashing algorithm than hash(string).

  hashIgnoreCase(myBuf, 0, myBuf.high) is equivalent to hashIgnoreCase(myBuf).

• func hashIgnoreCase(sBuf: string; sPos: int64; ePos: int64): uint64

  Efficient hashing of a string buffer, from starting position sPos to ending position ePos (included); case is ignored.

  Note: This uses a different hashing algorithm than hash(string).

  hashIgnoreCase(myBuf, 0, myBuf.high) is equivalent to hashIgnoreCase(myBuf).