Types

Standard types and their utilities More...

Files
file	string.h
	Variants on standard block memory copy/set functions.
file	types.h
	Common integer types.

Typedefs
typedef unsigned long long	uint64
	64-bit unsigned integer
typedef unsigned long	uint32
	32-bit unsigned integer
typedef unsigned short	uint16
	16-bit unsigned integer
typedef unsigned char	uint8
	8-bit unsigned integer
typedef long long	int64
	64-bit signed integer
typedef long	int32
	32-bit signed integer
typedef short	int16
	16-bit signed integer
typedef char	int8
	8-bit signed integer
typedef volatile uint64	vuint64
	64-bit volatile unsigned type
typedef volatile uint32	vuint32
	32-bit volatile unsigned type
typedef volatile uint16	vuint16
	16-bit volatile unsigned type
typedef volatile uint8	vuint8
	8-bit volatile unsigned type
typedef volatile int64	vint64
	64-bit volatile signed type
typedef volatile int32	vint32
	32-bit volatile signed type
typedef volatile int16	vint16
	16-bit volatile signed type
typedef volatile int8	vint8
	8-bit volatile signed type

Functions
void *	memcpy4 (void *dest, const void *src, size_t count)
	Copy a block of memory, 4 bytes at a time.
void *	memset4 (void *s, unsigned long c, size_t count)
	Set a block of memory, 4 bytes at a time.
void *	memcpy2 (void *dest, const void *src, size_t count)
	Copy a block of memory, 2 bytes at a time.
void *	memset2 (void *s, unsigned short c, size_t count)
	Set a block of memory, 2 bytes at a time.

Detailed Description

Standard types and their utilities

Typedef Documentation

int16

typedef short int16

16-bit signed integer

int32

typedef long int32

32-bit signed integer

int64

typedef long long int64

64-bit signed integer

int8

typedef char int8

8-bit signed integer

uint16

typedef unsigned short uint16

16-bit unsigned integer

uint32

typedef unsigned long uint32

32-bit unsigned integer

uint64

typedef unsigned long long uint64

64-bit unsigned integer

uint8

typedef unsigned char uint8

8-bit unsigned integer

vint16

typedef volatile int16 vint16

16-bit volatile signed type

vint32

typedef volatile int32 vint32

32-bit volatile signed type

vint64

typedef volatile int64 vint64

64-bit volatile signed type

vint8

typedef volatile int8 vint8

8-bit volatile signed type

vuint16

typedef volatile uint16 vuint16

16-bit volatile unsigned type

vuint32

typedef volatile uint32 vuint32

32-bit volatile unsigned type

vuint64

typedef volatile uint64 vuint64

64-bit volatile unsigned type

vuint8

typedef volatile uint8 vuint8

8-bit volatile unsigned type

Function Documentation

memcpy2()

void * memcpy2	(	void *	dest,
		const void *	src,
		size_t	count )

Copy a block of memory, 2 bytes at a time.

Deprecated

Invokes undefined behavior. Use memcpy().

This function is identical to memcpy(), except it copies 2 bytes at a time.

Warning

This function breaks C/C++ strict aliasing rules and is no longer considered safe to use. It's also slow.

Parameters

dest	The destination of the copy.
src	The source to copy.
count	The number of bytes to copy. This should be divisible by 2 (and will be rounded down if not).

Returns

The original value of dest.

memcpy4()

void * memcpy4	(	void *	dest,
		const void *	src,
		size_t	count )

Copy a block of memory, 4 bytes at a time.

Deprecated

Invokes undefined behavior. Use memcpy().

This function is identical to memcpy(), except it copies 4 bytes at a time.

Warning

This function breaks C/C++ strict aliasing rules and is no longer considered safe to use. It's also slow.

Parameters

dest	The destination of the copy.
src	The source to copy.
count	The number of bytes to copy. This should be divisible by 4 (and will be rounded down if not).

Returns

The original value of dest.

memset2()

void * memset2	(	void *	s,
		unsigned short	c,
		size_t	count )

Set a block of memory, 2 bytes at a time.

Deprecated

Invokes undefined behavior.

This function is identical to memset(), except it sets 2 bytes at a time. This implies that all 16-bits of c are used, not just the first 8 as in memset().

Warning

This function breaks C/C++ strict aliasing rules and is no longer considered safe to use.

Parameters

s	The destination of the set.
c	The value to set to.
count	The number of bytes to set. This should be divisible by 2 (and will be rounded down if not).

Returns

The original value of dest.

memset4()

void * memset4	(	void *	s,
		unsigned long	c,
		size_t	count )

Set a block of memory, 4 bytes at a time.

Deprecated

Invokes undefined behavior. Use memset().

This function is identical to memset(), except it sets 4 bytes at a time. This implies that all 32-bits of c are used, not just the first 8 as in memset().

Warning

This function breaks C/C++ strict aliasing rules and is no longer considered safe to use.

Parameters

s	The destination of the set.
c	The value to set to.
count	The number of bytes to set. This should be divisible by 4 (and will be rounded down if not).

Returns

The original value of dest.