Why Can\'t You Take the Address of a Map Value in Go?

Why doesn't Go allow taking the address of a map value?

Unlike slices, which are backed by a fixed-length backing array, maps in Go are backed by dynamic memory structures known as buckets. These buckets hold map keys and values and are constantly reorganized as entries are added, modified, or deleted.

This dynamic nature of map buckets means that map entries have no fixed location in memory. Attempting to take the address of a map value would yield an invalid pointer, as the entry's location could change at any time.

Therefore, Go forbids taking the address of map values to ensure data integrity and prevent unexpected behavior caused by dynamic map restructuring.

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