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/*-
* Copyright 2007-2014 Colin Percival
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _SYSENDIAN_H_
#define _SYSENDIAN_H_
#include <stdint.h>
#pragma GCC diagnostic ignored "-Wconversion"
#pragma GCC diagnostic ignored "-Wsign-conversion"
#pragma GCC diagnostic ignored "-Wtype-limits"
#pragma GCC diagnostic ignored "-Wcast-qual"
/* Avoid namespace collisions with BSD <sys/endian.h>. */
#define be32dec libcperciva_be32dec
#define be32enc libcperciva_be32enc
#define be64dec libcperciva_be64dec
#define be64enc libcperciva_be64enc
#define le32dec libcperciva_le32dec
#define le32enc libcperciva_le32enc
#define le64dec libcperciva_le64dec
#define le64enc libcperciva_le64enc
static inline uint32_t
be32dec(const void * pp)
{
const uint8_t * p = (uint8_t const *)pp;
return ((uint32_t)(p[3]) + ((uint32_t)(p[2]) << 8) +
((uint32_t)(p[1]) << 16) + ((uint32_t)(p[0]) << 24));
}
static inline void
be32enc(void * pp, uint32_t x)
{
uint8_t * p = (uint8_t *)pp;
p[3] = x & 0xff;
p[2] = (x >> 8) & 0xff;
p[1] = (x >> 16) & 0xff;
p[0] = (x >> 24) & 0xff;
}
static inline uint64_t
be64dec(const void *pp)
{
const uint8_t *p = (uint8_t const *)pp;
return ((uint64_t)(p[7]) + ((uint64_t)(p[6]) << 8) +
((uint64_t)(p[5]) << 16) + ((uint64_t)(p[4]) << 24) +
((uint64_t)(p[3]) << 32) + ((uint64_t)(p[2]) << 40) +
((uint64_t)(p[1]) << 48) + ((uint64_t)(p[0]) << 56));
}
static inline void
be64enc(void * pp, uint64_t x)
{
uint8_t * p = (uint8_t *)pp;
p[7] = x & 0xff;
p[6] = (x >> 8) & 0xff;
p[5] = (x >> 16) & 0xff;
p[4] = (x >> 24) & 0xff;
p[3] = (x >> 32) & 0xff;
p[2] = (x >> 40) & 0xff;
p[1] = (x >> 48) & 0xff;
p[0] = (x >> 56) & 0xff;
}
static inline uint32_t
le32dec(const void * pp)
{
const uint8_t * p = (uint8_t const *)pp;
return ((uint32_t)(p[0]) + ((uint32_t)(p[1]) << 8) +
((uint32_t)(p[2]) << 16) + ((uint32_t)(p[3]) << 24));
}
static inline void
le32enc(void * pp, uint32_t x)
{
uint8_t * p = (uint8_t *)pp;
p[0] = x & 0xff;
p[1] = (x >> 8) & 0xff;
p[2] = (x >> 16) & 0xff;
p[3] = (x >> 24) & 0xff;
}
static inline uint64_t
le64dec(const void * pp)
{
const uint8_t * p = (uint8_t const *)pp;
return ((uint64_t)(p[0]) + ((uint64_t)(p[1]) << 8) +
((uint64_t)(p[2]) << 16) + ((uint64_t)(p[3]) << 24) +
((uint64_t)(p[4]) << 32) + ((uint64_t)(p[5]) << 40) +
((uint64_t)(p[6]) << 48) + ((uint64_t)(p[7]) << 56));
}
static inline void
le64enc(void * pp, uint64_t x)
{
uint8_t * p = (uint8_t *)pp;
p[0] = x & 0xff;
p[1] = (x >> 8) & 0xff;
p[2] = (x >> 16) & 0xff;
p[3] = (x >> 24) & 0xff;
p[4] = (x >> 32) & 0xff;
p[5] = (x >> 40) & 0xff;
p[6] = (x >> 48) & 0xff;
p[7] = (x >> 56) & 0xff;
}
#endif /* !_SYSENDIAN_H_ */
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