sig
type t =
Neg_int8
| Int_code
| Int_overflow
| Nat0_code
| Nat0_overflow
| Int32_code
| Int64_code
| Nativeint_code
| Unit_code
| Bool_code
| Option_code
| String_too_long
| Variant_tag
| Array_too_long
| Hashtbl_too_long
| Sum_tag of string
| Variant of string
| Poly_rec_bound of string
| Variant_wrong_type of string
| Silly_type of string
| Empty_type of string
val to_string : Common.ReadError.t -> string
end