`for each` macro in standard C that works on all types

for_each.c

#include <stdio.h>
// Enhances `for` to automatically iterate over an array. Item cannot be used to modify the contents of array.
#if __STDC__ < 202311L
#define each(item, ...) \
(int no_loops = 1, break_p = 2; (no_loops >= 1) && (break_p == 2);) \
for(typeof(*(__VA_ARGS__)) *foreach_p = (__VA_ARGS__), *foreach_p2 = foreach_p, (item) = {}; \
(foreach_p < &((foreach_p2)[sizeof(__VA_ARGS__) / sizeof(*(__VA_ARGS__))])) && \
((break_p = (break_p == 2)?0:break_p), no_loops); ++foreach_p) \
if((__builtin_memcpy(&(item), foreach_p, sizeof(item))), 0){}else
#else
#define each(item, ...) \
(int no_loops = 1, break_p = 2; (no_loops >= 1) && (break_p == 2);) \
for(extern void *memcpy(void *restrict, const void *restrict, typeof(sizeof 0)); (no_loops >= 1) && (break_p == 2);) \
for(typeof(*(__VA_ARGS__)) *foreach_p = (__VA_ARGS__), *foreach_p2 = foreach_p, (item) = {}; \
(foreach_p < &((foreach_p2)[sizeof(__VA_ARGS__) / sizeof(*(__VA_ARGS__))])) && \
((break_p = (break_p == 2)?0:break_p), no_loops); ++foreach_p) \
if((memcpy(&(item), foreach_p, sizeof(item))), 0){}else
#endif

int main(){
	char group[][4] = {
		"egg",
		"one",
		"two",
	};
	for each(x, group){
		puts(x);
	}
}

corsed