hash.h File Reference

Hash functions. More...

Typedefs
typedef uint32_t(*	vtm_hash_elem_fn )(union vtm_elem *el)

Functions
VTM_API uint32_t	vtm_hash_str (const char *in)
VTM_API uint32_t	vtm_hash_strcase (const char *in)
VTM_API uint32_t	vtm_hash_ptr (const void *in)
VTM_API uint32_t	vtm_hash_mem (const void *in, size_t len)
VTM_API uint32_t	vtm_hash_num (int64_t in)
VTM_API uint32_t	vtm_hash_unum (uint64_t in)
VTM_API vtm_hash_elem_fn	vtm_hash_elem_get_fn (enum vtm_elem_type type)
VTM_API uint32_t	vtm_hash_elem_int8 (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_uint8 (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_int16 (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_uint16 (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_int32 (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_uint32 (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_int64 (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_uint64 (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_bool (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_char (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_schar (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_uchar (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_short (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_ushort (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_int (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_uint (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_long (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_ulong (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_float (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_double (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_str (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_strcase (union vtm_elem *el)
VTM_API uint32_t	vtm_hash_elem_ptr (union vtm_elem *el)

Typedef Documentation

typedef uint32_t(* vtm_hash_elem_fn)(union vtm_elem *el)

Calculates the hash for given element.

Parameters

el	the element whose hash value should be calculated

Returns

the hash value

Function Documentation

VTM_API uint32_t vtm_hash_str

(

const char *

in

)

Calculates hash for given input string.

Parameters

in	NUL-terminated input string

Returns

calculated hash value

VTM_API uint32_t vtm_hash_strcase

(

const char *

in

)

Calculates case-independent hash for given input string.

Parameters

in	NUL-terminated input string

Returns

calculated hash value

VTM_API uint32_t vtm_hash_ptr

(

const void *

in

)

Calculates hash for given pointer.

Parameters

in

a pointer

Returns

calculated hash value

VTM_API uint32_t vtm_hash_mem	(	const void *	in,
		size_t	len
	)

Calculates hash over given memory region.

Parameters

in	pointer to memory region
len	length in bytes of memory region

Returns

calculated hash value

VTM_API uint32_t vtm_hash_num

(

int64_t

in

)

Calculates hash for given signed integer.

Parameters

in	64bit signed integer

Returns

calculated hash value

VTM_API uint32_t vtm_hash_unum

(

uint64_t

in

)

Calculates hash for given unsigned integer.

Parameters

in	64bit unsigned integer

Returns

calculated hash value

VTM_API vtm_hash_elem_fn vtm_hash_elem_get_fn

(

enum vtm_elem_type

type

)

Gets a function pointer to the appropriate element hash function.

Parameters

type	the element type

Returns

function pointer to element hash function