rttrust 0.1.3

Rust wrapper for rt-thread
Documentation 
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/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2015-02-17     Bernard      First version
 */

#ifndef IN_H__
#define IN_H__

#include <sys/socket.h>

#ifndef IN6_IS_ADDR_MULTICAST
#define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
#endif

#endif