pic_hash_32bit_fnv

An implementation of the FNV hashes 1 and 1a of Glenn Fowler, Landon Curt Noll, and Kiem-Phong-Vo, https://en.wikipedia.org/wiki/Fowler–Noll–Vo_hash_function

Uses

- iso_fortran_env
- pic_types
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Graph Key

Nodes of different colours represent the following:

Solid arrows point from a submodule to the (sub)module which it is descended from. Dashed arrows point from a module or program unit to modules which it uses.
Where possible, edges connecting nodes are given different colours to make them easier to distinguish in large graphs.

Used by

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Graph Key

Nodes of different colours represent the following:

Solid arrows point from a submodule to the (sub)module which it is descended from. Dashed arrows point from a module or program unit to modules which it uses.
Where possible, edges connecting nodes are given different colours to make them easier to distinguish in large graphs.

Variables

Type	Visibility	Attributes		Name		Initial
integer,	public,	parameter	::	int_hash	=	int32
logical,	public,	parameter	::	little_endian	=	(1==transfer([1_int8, 0_int8], 0_int16))
integer,	private,	parameter	::	bits_char	=	character_storage_size
integer,	private,	parameter	::	bits_int16	=	bit_size(0_int16)
integer,	private,	parameter	::	bits_int32	=	bit_size(0_int32)
integer,	private,	parameter	::	bits_int64	=	bit_size(0_int64)
integer,	private,	parameter	::	bits_int8	=	bit_size(0_int8)
integer,	private,	parameter	::	bytes_char	=	bits_char/bits_int8
integer,	private,	parameter	::	bytes_int16	=	bits_int16/bits_int8
integer,	private,	parameter	::	bytes_int32	=	bits_int32/bits_int8
integer,	private,	parameter	::	bytes_int64	=	bits_int64/bits_int8
integer,	private,	parameter	::	bytes_int8	=	bits_int8/bits_int8
integer(kind=int_hash),	private,	parameter	::	offset_basis	=	int(z'811C9DC5', int_hash)	The number of bits in the output hash
integer(kind=int_hash),	private,	parameter	::	prime	=	int(z'01000193', int_hash)	The number of bits in the output hash

Interfaces

public interface fnv_1_hash

FNV_1 interfaces

private elemental module function character_fnv_1(key) result(hash_code)

FNV_1 hash function for default character string keys

Arguments

Type	Intent	Optional	Attributes		Name
character(len=*),	intent(in)			::	key

Return Value integer(kind=int_hash)

private pure module function int16_fnv_1(key) result(hash_code)

FNV_1 hash function for rank 1 array keys of kind int16

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int16),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int32_fnv_1(key) result(hash_code)

FNV_1 hash function for rank 1 array keys of kind int32

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int32),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int64_fnv_1(key) result(hash_code)

FNV_1 hash function for rank 1 array keys of kind int64

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int64),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int8_fnv_1(key) result(hash_code)

FNV_1 hash function for rank 1 array keys of kind int8

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int8),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

public interface fnv_1a_hash

FNV_1A interfaces

private elemental module function character_fnv_1a(key) result(hash_value)

FNV_1A hash function for default character string keys

Arguments

Type	Intent	Optional	Attributes		Name
character(len=*),	intent(in)			::	key

Return Value integer(kind=int_hash)

private pure module function int16_fnv_1a(key) result(hash_value)

FNV_1A hash function for rank 1 array keys of kind int16

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int16),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int32_fnv_1a(key) result(hash_value)

FNV_1A hash function for rank 1 array keys of kind int32

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int32),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int64_fnv_1a(key) result(hash_value)

FNV_1A hash function for rank 1 array keys of kind int64

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int64),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int8_fnv_1a(key) result(hash_value)

FNV_1A hash function for rank 1 array keys of kind int8

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int8),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

Functions

private elemental module function character_fnv_1(key) result(hash_code)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=*),	intent(in)			::	key

Return Value integer(kind=int_hash)

private elemental module function character_fnv_1a(key) result(hash_code)

Arguments

Type	Intent	Optional	Attributes		Name
character(len=*),	intent(in)			::	key

Return Value integer(kind=int_hash)

private pure module function int16_fnv_1(key) result(hash_code)

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int16),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int16_fnv_1a(key) result(hash_code)

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int16),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int32_fnv_1(key) result(hash_code)

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int32),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int32_fnv_1a(key) result(hash_code)

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int32),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int64_fnv_1(key) result(hash_code)

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int64),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int64_fnv_1a(key) result(hash_code)

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int64),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int8_fnv_1(key) result(hash_code)

The original FNV-1 8-bit key algorithm.

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int8),	intent(in)			::	key(:)

Return Value integer(kind=int_hash)

private pure module function int8_fnv_1a(key) result(hash_code)

The original FNV-1a 8-bit key algorithm.

Arguments

Type	Intent	Optional	Attributes		Name
integer(kind=int8),	intent(in)			::	key(:)

pic_hash_32bit_fnv Module

Contents

Variables

Interfaces

Functions

Uses

Used by

Variables

Interfaces

public interface fnv_1_hash

private elemental module function character_fnv_1(key) result(hash_code) Implementation →

Arguments

Return Value integer(kind=int_hash)

private pure module function int16_fnv_1(key) result(hash_code) Implementation →

Arguments

Return Value integer(kind=int_hash)

private pure module function int32_fnv_1(key) result(hash_code) Implementation →

Arguments

Return Value integer(kind=int_hash)

private pure module function int64_fnv_1(key) result(hash_code) Implementation →

Arguments

Return Value integer(kind=int_hash)

private pure module function int8_fnv_1(key) result(hash_code) Implementation →

Arguments

Return Value integer(kind=int_hash)

public interface fnv_1a_hash

private elemental module function character_fnv_1a(key) result(hash_value) Implementation →

Arguments

Return Value integer(kind=int_hash)

private pure module function int16_fnv_1a(key) result(hash_value) Implementation →

Arguments

Return Value integer(kind=int_hash)

private pure module function int32_fnv_1a(key) result(hash_value) Implementation →

Arguments

Return Value integer(kind=int_hash)

private pure module function int64_fnv_1a(key) result(hash_value) Implementation →

Arguments

Return Value integer(kind=int_hash)

private pure module function int8_fnv_1a(key) result(hash_value) Implementation →

Arguments

Return Value integer(kind=int_hash)

Functions

private elemental module function character_fnv_1(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private elemental module function character_fnv_1a(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private pure module function int16_fnv_1(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private pure module function int16_fnv_1a(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private pure module function int32_fnv_1(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private pure module function int32_fnv_1a(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private pure module function int64_fnv_1(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private pure module function int64_fnv_1a(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private pure module function int8_fnv_1(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private pure module function int8_fnv_1a(key) result(hash_code)

Arguments

Return Value integer(kind=int_hash)

private elemental module function character_fnv_1(key) result(hash_code)

private pure module function int16_fnv_1(key) result(hash_code)

private pure module function int32_fnv_1(key) result(hash_code)

private pure module function int64_fnv_1(key) result(hash_code)

private pure module function int8_fnv_1(key) result(hash_code)

private elemental module function character_fnv_1a(key) result(hash_value)

private pure module function int16_fnv_1a(key) result(hash_value)

private pure module function int32_fnv_1a(key) result(hash_value)

private pure module function int64_fnv_1a(key) result(hash_value)

private pure module function int8_fnv_1a(key) result(hash_value)