107 #define __clamp(val, lo, hi)	\  argument
108 	((val) >= (hi) ? (hi) : ((val) <= (lo) ? (lo) : (val)))
110 #define __clamp_once(val, lo, hi, uval, ulo, uhi) ({				\  argument
113 	__auto_type uhi = (hi);							\
114 	static_assert(__builtin_choose_expr(__is_constexpr((lo) > (hi)), 	\
115 			(lo) <= (hi), true),					\
116 		"clamp() low limit " #lo " greater than high limit " #hi);	\
117 	BUILD_BUG_ON_MSG(!__types_ok3(val,lo,hi,uval,ulo,uhi),			\
118 		"clamp("#val", "#lo", "#hi") signedness error");		\
121 #define __careful_clamp(val, lo, hi) \  argument
122 	__clamp_once(val, lo, hi, __UNIQUE_ID(v_), __UNIQUE_ID(l_), __UNIQUE_ID(h_))
193  * @hi: highest allowable value
195  * This macro does strict typechecking of @lo/@hi to make sure they are of the
198 #define clamp(val, lo, hi) __careful_clamp(val, lo, hi)  argument
271  * @hi: maximum allowable value
276 #define clamp_t(type, val, lo, hi) __careful_clamp((type)(val), (type)(lo), (type)(hi))  argument
282  * @hi: maximum allowable value
286  * type and @lo and @hi are literals that will otherwise be assigned a signed
289 #define clamp_val(val, lo, hi) clamp_t(typeof(val), val, lo, hi)  argument