Cairo: How do I iterate through an array of structs?

You can do this through recursion. A key difference between iterating through an array of structs vs an array of felts is that each recursive call should increase the array index by <YourStruct>.SIZE , vs. just incrementing it by 1 for an array of felts. For example:

struct Point:

member x : felt

member y : felt

end



func yourFunc(points: Point*, points_len : felt):

if points_len == 0:

return ()

end

let p: Point = points[0]

# do whatever you wish with p



# recursively call yourFunc, but increase the location in the array by Point.SIZE

yourFunc(points + Point.SIZE, points_len - 1)

end

ㅤ This answer was originally posted on Triality