package ctypes-foreign

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val record : Stdlib.Obj.t -> Stdlib.Obj.t -> int

record c v links the lifetimes of c and v, ensuring that v is not collected while c is still live. The return value is a key that can be used to retrieve v while v is still live.

val retrieve : int -> Stdlib.Obj.t

retrieve v retrieves a value using a key returned by record, or raises Not_found if v is no longer live.