SWITCH_CASE_FALLTHROUGH

#define SWITCH_CASE_FALLTHROUGH   /* fallthrough */

#include <nrf_802154/common/include/nrf_802154_compiler.h>

Portable fallthrough annotation for switch case statements.

This macro provides a portable way to annotate intentional fallthrough between switch case labels across different C standards and compilers:

• C23: Uses [[fallthrough]] attribute
• GCC 7+/Clang: Uses attribute((fallthrough))
• Older compilers: Falls back to comment-based annotation

Usage:

switch (value) {
    case 1:
        do_something();
        SWITCH_CASE_FALLTHROUGH;
    case 2:
        do_something_else();
        break;
}