include: util: add array for-each macros (42335036) · Commits · Wenxi XU / zephyr

AFAIK, we do not have array for-each loops. Seemed like an obvious gap to fill, so introduce two variants: * ARRAY_FOR_EACH(array, idx_var) * ARRAY_FOR_EACH_PTR(array, ptr_var) Signed-off-by:

Christopher Friedt <cfriedt@meta.com>

include/zephyr/sys/util.h

+18 −0

Original line number	Diff line number	Diff line
		@@ -202,6 +202,24 @@ extern "C" {
		(POINTER_TO_UINT(ptr) - POINTER_TO_UINT(array)) / sizeof((array)[0]); \
		})

		/**
		* @brief Iterate over members of an array using an index variable
		*
		* @param array the array in question
		* @param idx name of array index variable
		*/
		#define ARRAY_FOR_EACH(array, idx) for (size_t idx = 0; (idx) < ARRAY_SIZE(array); ++(idx))

		/**
		* @brief Iterate over members of an array using a pointer
		*
		* @param array the array in question
		* @param ptr pointer to an element of @p array
		*/
		#define ARRAY_FOR_EACH_PTR(array, ptr) \
		for (__typeof__((array)) ptr = (array); (size_t)((ptr) - (array)) < ARRAY_SIZE(array); \
		++(ptr))

		/**
		* @brief Validate if two entities have a compatible type
		*

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