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Manual Reference Pages - BYTEORDER (9)
NAME
bswap16, bswap32, bswap64,
be16toh, be32toh, be64toh, htobe16, htobe32, htobe64,
htole16, htole32, htole64, le16toh, le32toh, le64toh,
be16enc, be16dec, be32enc, be32dec, be64enc, be64dec,
le16enc, le16dec, le32enc, le32dec, le64enc, le64dec
- byte order operations
CONTENTS
Synopsis
Description
See Also
History
SYNOPSIS
.In sys/endian.h
uint16_t
bswap16 uint16_t int16
uint32_t
bswap32 uint32_t int32
uint64_t
bswap64 uint64_t int64
uint16_t
be16toh uint16_t big16
uint32_t
be32toh uint32_t big32
uint64_t
be64toh uint64_t big64
uint16_t
htobe16 uint16_t host16
uint32_t
htobe32 uint32_t host32
uint64_t
htobe64 uint64_t host64
uint16_t
htole16 uint16_t host16
uint32_t
htole32 uint32_t host32
uint64_t
htole64 uint64_t host64
uint16_t
le16toh uint16_t little16
uint32_t
le32toh uint32_t little32
uint64_t
le64toh uint64_t little64
uint16_t
be16dec const void *
uint32_t
be32dec const void *
uint64_t
be64dec const void *
uint16_t
le16dec const void *
uint32_t
le32dec const void *
uint64_t
le64dec const void *
void
be16enc void * uint16_t
void
be32enc void * uint32_t
void
be64enc void * uint64_t
void
le16enc void * uint16_t
void
le32enc void * uint32_t
void
le64enc void * uint64_t
DESCRIPTION
The
bswap16,
bswap32,
and
bswap64
functions return a byte order swapped integer.
On big endian systems, the number is converted to little endian byte order.
On little endian systems, the number is converted to big endian byte order.
The
be16toh,
be32toh,
and
be64toh
functions return a big endian byte ordered integer
converted to the systems native byte order.
The return value will be the same as the argument on big endian systems.
The
le16toh,
le32toh,
and
le64toh
functions return a little endian byte ordered integer
converted to the systems native byte order.
The return value will be the same as the argument on little endian systems.
The
htobe16,
htobe32,
and
htobe64
functions return a integer in the systems native
byte order converted to big endian byte order.
The return value will be the same as the argument on big endian systems.
The
htole16,
htole32,
and
htole64
functions return a integer in the systems native
byte order converted to little endian byte order.
The return value will be the same as the argument on little endian systems.
The
be16enc,
be16dec,
be32enc,
be32dec,
be64enc,
be64dec,
le16enc,
le16dec,
le32enc,
le32dec,
le64enc,
and
le64dec
functions encode and decode integers to/from byte strings on any alignment
in big/little endian format.
SEE ALSO
byteorder(3)
HISTORY
The
hto*
and
toh*
functions first appeared in
.Fx 5.0 ,
and were originally developed by the
.Nx
project.
The encode/decode functions first appeared in
.Fx 5.1 .
| April 29, 2002 | BYTEORDER (9) | |
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