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root/uspace/lib/posix/include/posix/endian.h

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/*
 * Copyright (c) 2026 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
 */

/** @addtogroup libposix
 * @{
 */
/** @file System endianness.
 */

#ifndef POSIX_ENDIAN_H_
#define POSIX_ENDIAN_H_

#include <byteorder.h>

#define LITTLE_ENDIAN 1234
#define BIG_ENDIAN 4321

#ifdef __BE__
#define BYTE_ORDER BIG_ENDIAN
#else
#define BYTE_ORDER LITTLE_ENDIAN
#endif

#define be16toh uint16_t_be2host
#define be32toh uint32_t_be2host
#define be64toh uint64_t_be2host

#define htobe16 host2uint16_t_be
#define htobe32 host2uint32_t_be
#define htobe64 host2uint64_t_be

#define htole16 host2uint16_t_le
#define htole32 host2uint32_t_le
#define htole64 host2uint64_t_le

#define le16toh uint16_t_le2host
#define le32toh uint32_t_le2host
#define le64toh uint64_t_le2host

#endif /* POSIX_ENDIAN_H_ */

/** @}
 */

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