package goblint

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Static analysis framework for C

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Dune Dependency

goblint.in.tum.de Readme Changelog Edit opam file Versions (8)

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Sources

goblint-2.2.1.tbz

sha256=ca24f72fa9a87d288affe97c411753f14b7802bab4ca3649b337276b89bf5674

sha512=394b3521ccda0da91540cebb2f433f7525763060be4bbe179edd3b952a3580a8e173c4e410fc6895dc67fe6d17e6699aeddfed600f4692858bec093dd912bf1e

doc/goblint.lib/Goblint_lib/Offset/Unit/index.html

Module `Offset.Unit`

Offset with Index.Unit indices.

include Printable with type idx = unit

type idx = unit

Type of indices in offset.

include Printable.S with type t = idx Goblint_lib__.Offset_intf.t

type t = [

| `NoOffset
(*
No offset. Marks the end of offset list.
*)
| `Field of CilType.Fieldinfo.t * idx Goblint_lib__.Offset_intf.t
(*
Offset starting with a struct field.
*)
| `Index of idx * idx Goblint_lib__.Offset_intf.t
(*
Offset starting with an array index.
*)

]

val equal : t -> t -> bool

val hash : t -> int

val compare : t -> t -> int

val show : t -> string

val pretty : unit -> t -> Goblint_lib__.Printable.Pretty.doc

val printXml : 'a BatInnerIO.output -> t -> unit

val name : unit -> string

val to_yojson : t -> Yojson.Safe.t

val tag : t -> int

Unique ID, given by HConsed, for context identification in witness

val arbitrary : unit -> t QCheck.arbitrary

val relift : t -> t

val is_definite : t -> bool

Whether offset has only definite integer indexing (and fields).

val contains_index : t -> bool

Whether offset contains any indexing.

val add_offset : t -> t -> t

add_offset o1 o2 appends o2 to o1.

val remove_offset : t -> t

Remove last indexing or field from offset.

val prefix : t -> t -> t option

prefix o1 o2 checks if o1 is a prefix of o2.

returns
Some o if it is (such that add_offset o1 o = o2), None if it is not.

val map_indices : (idx -> idx) -> t -> t

Apply function to all indexing.

val top_indices : t -> t

Change all indices to top indices.

val to_cil : t -> GoblintCil.offset

Convert to CIL offset.

val to_exp : t -> GoblintCil.exp Goblint_lib__.Offset_intf.t

Convert to Goblint offset with GoblintCil.exp indices.

val to_cil_offset : t -> GoblintCil.offset

Version of to_cil which drops indices for ArrayDomain.

val cmp_zero_offset : t -> [ `MustZero | `MustNonzero | `MayZero ]

Compare offset to zero offset.

Zero indices and first fields of a struct are in the same physical memory location as the outer object.

returns
`MustZero if definitely zero, `MustNonzero if definitely not zero, `MayZero if unknown.

val type_of : base:GoblintCil.typ -> t -> GoblintCil.typ

Type of the offset on the base type.

raises Type_of_error
if could not follow offset completely.

val of_offs : 'i Goblint_lib__.Offset_intf.t -> t

Convert from Goblint offset with arbitrary indices.

val of_cil : GoblintCil.offset -> t

Convert from CIL offset.