MACH-SWAP(3)

NAME
beswap2, beswap4, beswap8, beieeeftoa32, beieeeftoa64, beieeeftoa80, beload2, beload4, beload8, leswap2, leswap4, leswap8, leieeeftoa32, leieeeftoa64, leieeeftoa80, leload2, leload4, leload8, ieeeftoa32, ieeeftoa64 - machine-independent access to byte-ordered data

SYNOPSIS
#include <u.h>
#include <libc.h>
#include <mach.h>

u16int    beswap2(u16int u)
u32int    beswap4(u32int u)
u64int    beswap8(u64int u)

int    beieeeftoa32(char *a, uint n, void *f)
int    beieeeftoa64(char *a, uint n, void *f)
int    beieeeftoa80(char *a, uint n, void *f)

u16int    beload2(uchar *p)
u32int    beload4(uchar *p)
u64int    beload8(uchar *p)

u16int    leswap2(u16int u)
u32int    leswap4(u32int u)
u64int    leswap8(u64int u)

int    leieeeftoa32(char *a, uint n, void *f)
int    leieeeftoa64(char *a, uint n, void *f)
int    leieeeftoa80(char *a, uint n, void *f)

u16int    leload2(uchar *p)
u32int    leload4(uchar *p)
u64int    leload8(uchar *p)

int    ieeeftoa32(char *a, uint n, u32int u)
int    ieeeftoa64(char *a, uint n, u32int hi, u32int lo)

DESCRIPTION
These functions provide machine-independent access to data in a particular byte order.

Beswap2, beswap4, and beswap8 return the 2-byte, 4-byte, and 8-byte big-endian representation of the bytes in val, respectively.

Beload2, beload4, and beload8 return the 2-byte, 4-byte, and 8-byte big-endian interpretation of the bytes at p, respectively.

Beieeeftoa32, beieeeftoa64, and beieeeftoa80 format the big-endian 4-byte, 8-byte, or 10-byte IEEE floating-point value at f into the n-byte string buffer a.

Leswap2, leswap4, etc. are the little-endian equivalents of the routines just described.

Ieeeftoa32 and ieeeftoa64 format a local machine byte-order floating-point value into the n-byte string buffer a. Ieeeftoa32 expects a 32-bit floating-point value stored in the bits of u. Ieeeftoa64 expects a 64-bit floating-point value whose high 32-bits are in hi and low 32-bits are in lo.

SOURCE
/src/libmach

SEE ALSO
mach((3))