-#if HAVE_ATTRIBUTE_COLD
-/**
- * unlikely_func - indicate that a function is unlikely to be called.
- *
- * This uses a compiler extension where available to indicate an unlikely
- * code path and optimize appropriately; see unlikely() above.
- *
- * It is usually used on logging or error routines.
- *
- * See Also:
- * unlikely()
- *
- * Example:
- * void unlikely_func die_moaning(const char *reason)
- * {
- * fprintf(stderr, "Dying: %s\n", reason);
- * exit(1);
- * }
- */
-#define unlikely_func __attribute__((cold))
-#else
-#define unlikely_func
-#endif
-
-#ifdef DEBUG