attributes.h

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#ifndef ECU_ATTRIBUTES_H_
#define ECU_ATTRIBUTES_H_
 
#if defined(ECU_DOXYGEN)
    #define ECU_ATTRIBUTE_NORETURN
 
    #define ECU_ATTRIBUTE_PACKED
 
    #define ECU_ATTRIBUTE_SECTION(x_)
    #define ECU_ATTRIBUTE_UNUSED
#else
    /* ECU_ATTRIBUTE_NORETURN - Critical attribute. */
    #if defined(__cplusplus) && (__cplusplus >= 201103L) /* Using C++11 and up. */
        #define ECU_ATTRIBUTE_NORETURN [[noreturn]]
    #elif !defined(__cplusplus) && defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) && (__STDC_VERSION__ < 202311L) /* Using C11 to C17. */
        #define ECU_ATTRIBUTE_NORETURN _Noreturn
    #elif !defined(__cplusplus) && defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 202311L) /* Using C23 and up. */
        #define ECU_ATTRIBUTE_NORETURN [[noreturn]]
    #elif defined(__GNUC__) && !defined(__STRICT_ANSI__) /* Compiling with GCC with extensions enabled (attributes are compiler extensions not supported in ISO C). */
        #if __GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95 || (__GNUC_MINOR__ == 95 && __GNUC_PATCHLEVEL__ > 2))) /* GCC >= v2.95.3. Oldest version in GCC docs. */
            #define ECU_ATTRIBUTE_NORETURN __attribute__((noreturn))
        #endif
    #endif
 
    /* ECU_ATTRIBUTE_PACKED - Critical attribute. */
    #if defined(__GNUC__) && !defined(__STRICT_ANSI__) /* Compiling with GCC with extensions enabled (attributes are compiler extensions not supported in ISO C). */
        #if __GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95 || (__GNUC_MINOR__ == 95 && __GNUC_PATCHLEVEL__ > 2))) /* GCC >= v2.95.3. Oldest version in GCC docs. */
            #define ECU_ATTRIBUTE_PACKED __attribute__((packed))
        #endif
    #endif
 
    /* ECU_ATTRIBUTE_SECTION - Critical attribute. */
    #if defined(__GNUC__) && !defined(__STRICT_ANSI__) /* Compiling with GCC with extensions enabled (attributes are compiler extensions not supported in ISO C). */
        #if __GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95 || (__GNUC_MINOR__ == 95 && __GNUC_PATCHLEVEL__ > 2))) /* GCC >= v2.95.3. Oldest version in GCC docs. */
            #define ECU_ATTRIBUTE_SECTION(x_) __attribute__((section(x_)))
        #endif
    #endif
 
    /* ECU_ATTRIBUTE_SECTION - Non-critical attribute. */
    #if defined(__GNUC__) && !defined(__STRICT_ANSI__) /* Compiling with GCC with extensions enabled (attributes are compiler extensions not supported in ISO C). */
        #if __GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95 || (__GNUC_MINOR__ == 95 && __GNUC_PATCHLEVEL__ > 2))) /* GCC >= v2.95.3. Oldest version in GCC docs. */
            #define ECU_ATTRIBUTE_UNUSED __attribute__((unused))
        #endif
    #endif
 
    /* Non-critical attributes. */
    #ifndef ECU_ATTRIBUTE_UNUSED
        #define ECU_ATTRIBUTE_UNUSED
    #endif
#endif /* ECU_DOXYGEN */
 
#endif /* ECU_ATTRIBUTES_H_ */