Macros for converting between big/little endian and host byte order. More...

Files
file	byteorder.h

file	swapbytes.c
	For platforms without swap32() and swap16() functions for swapping byte order for 32 and 16-bit values.

file	swapcpy.c
	Used in endian conversions for values larger than 32 bits.

Macros
#define	be16toh(x) swap16(x)
	Convert a uint16_t in big-endian byte order to host byte order.

#define	be32toh(x) swap32(x)
	Convert a uint32_t in big-endian byte order to host byte order.

#define	htobe16(x) swap16(x)
	Convert a uint16_t in host byte order to big-endian byte order.

#define	htobe32(x) swap32(x)
	Convert a uint32_t in host byte order to big-endian byte order.

#define	htole16(x) (x)
	Convert a uint16_t in host byte order to little-endian byte order.

#define	htole32(x) (x)
	Convert a uint32_t in host byte order to little-endian byte order.

#define	le16toh(x) (x)
	Convert a uint16_t in little-endian byte order to host byte order.

#define	le32toh(x) (x)
	Convert a uint32_t in little-endian byte order to host byte order.

#define	memcpy_betoh(dst, src_be, count) _swapcpy( dst, src_be, count)
	Copy count bytes in big-endian byte order from src_be to dst in host byte order (equivalent to memcpy() on big-endian platforms).

#define	memcpy_betole(dst_le, src_be, count) _swapcpy( dst_le, src_be, count)
	Copy count bytes in big-endian byte order from src_be to dst_le in little-endian byte order (always swaps byte order).

#define	memcpy_htobe(dst_be, src, count) _swapcpy( dst_be, src, count)
	Copy count bytes in host byte order from src to dst_be in big-endian byte order (equivalent to memcpy() on big-endian platforms).

#define	memcpy_htole(dst_le, src, count) _f_memcpy( dst_le, src, count)
	Copy count bytes in host byte order from src to dst_le in little-endian byte order (equivalent to memcpy() on little-endian platforms).

#define	memcpy_letobe(dst_be, src_le, count) _swapcpy( dst_be, src_le, count)
	Copy count bytes in little-endian byte order from src_le to dst_be in big-endian byte order (always swaps byte order).

#define	memcpy_letoh(dst, src_le, count) _f_memcpy( dst, src_le, count)
	Copy count bytes in little-endian byte order from src_le to dst in host byte order (equivalent to memcpy() on little-endian platforms).

Functions
uint16_t	swap16 (uint16_t value)
	Swap the byte order of a 16-bit value. More...

uint32_t	swap32 (uint32_t value)
	Swap the byte order of a 32-bit value. More...

void	_swapcpy (void FAR dst, const void FAR src, uint_fast8_t count)
	Function similar to memcpy() but reverses byte order during copy. Copy count from src to dst while reversing the order. Assumes that src and dst do not overlap. More...

Detailed Description

Macros for converting between big/little endian and host byte order.

Function Documentation

void _swapcpy	(	void FAR *	dst,
		const void FAR *	src,
		uint_fast8_t	count
	)

Function similar to memcpy() but reverses byte order during copy. Copy count from src to dst while reversing the order. Assumes that src and dst do not overlap.

Parameters

[out]	dst	destination buffer
[in]	src	source buffer
[in]	count	number of bytes to copy

References FAR.

Referenced by _xbee_checksum_inline().

uint16_t swap16 ( uint16_t value )

Swap the byte order of a 16-bit value.

Parameters

[in] value value to swap

Returns: new 16-bit value with opposite endianness of value

uint32_t swap32 ( uint32_t value )

Swap the byte order of a 32-bit value.

Parameters

[in] value value to swap

Returns: new 32-bit value with opposite endianness of value

Files

Macros

Functions

Detailed Description

Function Documentation