nrf_802154_compiler.h

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/*
 * Copyright (c) 2025, Nordic Semiconductor ASA
 * All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * 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.
 *
 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */
 
#ifndef NRF_802154_COMPILER_H__
#define NRF_802154_COMPILER_H__
 
#ifdef __cplusplus
extern "C" {
#endif
 
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 202311L)
    /* C23 and later */
    #define SWITCH_CASE_FALLTHROUGH [[fallthrough]]
#elif defined(__has_attribute)
    /* Clang and GCC with __has_attribute support */
    #if __has_attribute(fallthrough)
        #define SWITCH_CASE_FALLTHROUGH __attribute__((fallthrough))
    #else
        #define SWITCH_CASE_FALLTHROUGH /* fallthrough */
    #endif
#elif defined(__GNUC__) && (__GNUC__ >= 7)
    /* GCC 7+ */
    #define SWITCH_CASE_FALLTHROUGH __attribute__((fallthrough))
#elif defined(__clang__)
    /* Clang (older versions) */
    #if defined(__clang_major__) && (__clang_major__ >= 10)
        #define SWITCH_CASE_FALLTHROUGH __attribute__((fallthrough))
    #else
        #define SWITCH_CASE_FALLTHROUGH /* fallthrough */
    #endif
#else
    /* Fallback for other compilers */
    #define SWITCH_CASE_FALLTHROUGH /* fallthrough */
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif // NRF_802154_COMPILER_H__