76 #define EXPAND_VAR_ARGS(buf, arg_fmt, buf_len) do {\  argument
78 	assert(arg_fmt != NULL);		\
79 	va_start(ap, arg_fmt);			\
80 	vsnprintf(buf, buf_len, arg_fmt, ap);	\
160                       const char *arg_fmt, ...)  in tst_res__()  argument
170 	EXPAND_VAR_ARGS(tmesg + len, arg_fmt, USERMESG - len);  in tst_res__()
475                       void (*func)(void), const char *arg_fmt, ...)  in tst_brk__()  argument
482 	EXPAND_VAR_ARGS(tmesg, arg_fmt, USERMESG);  in tst_brk__()
524 	const char *arg_fmt, ...)  in tst_resm_()  argument
528 	EXPAND_VAR_ARGS(tmesg, arg_fmt, USERMESG);  in tst_resm_()
540 	const void *buf, size_t size, const char *arg_fmt, ...)  in tst_resm_hexd_()  argument
555 	EXPAND_VAR_ARGS(tmesg, arg_fmt, USERMESG);  in tst_resm_hexd_()
579 	void (*func)(void), const char *arg_fmt, ...)  in tst_brkm__()  argument
583 	EXPAND_VAR_ARGS(tmesg, arg_fmt, USERMESG);  in tst_brkm__()