int count; //negative for roll
long int limit;
};
-typedef struct xbt_log_append2_file_s* xbt_log_append2_file_t;
+using xbt_log_append2_file_t = xbt_log_append2_file_s*;
static constexpr const char* APPEND2_END_TOKEN = "\n[End of log]\n";
static constexpr const char* APPEND2_END_TOKEN_CLEAR = "\n ";