package frama-c

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in-package search v0.2.0

Platform dedicated to the analysis of source code written in C

Install

Dune Dependency

frama-c.com Readme Edit opam file Versions (25)

Authors

Maintainers

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frama-ci-bot@frama-c.com

Sources

frama-c-28.1-Nickel.tar.gz

sha256=0220bc743b7da2468ceb926f331edc7ddfaa7c603ba47962de3e33c8e1e3f593

doc/frama-c.kernel/Frama_c_kernel/Function_Froms/DepsOrUnassigned/index.html

Module `Function_Froms.DepsOrUnassigned`

type deps_or_unassigned =

| DepsBottom
(*
Bottom of the lattice, never bound inside a memory state at a valid location. (May appear for bases for which the validity does not start at 0, currently only NULL.)
*)
| Unassigned
(*
Location has never been assigned
*)
| AssignedFrom of Deps.t
(*
Location guaranteed to have been overwritten, its contents depend on the Deps.t value
*)
| MaybeAssignedFrom of Deps.t
(*
Location may or may not have been overwritten
*)

The lattice is DepsBottom <= Unassigned, DepsBottom <= AssignedFrom z, Unassigned <= MaybeAssignedFrom and AssignedFrom z <= MaybeAssignedFrom z.

include Lmap_bitwise.With_default with type t = deps_or_unassigned

include Lattice_type.Bounded_Join_Semi_Lattice with type t = deps_or_unassigned

include Lattice_type.Join_Semi_Lattice with type t = deps_or_unassigned

datatype of element of the lattice

include Datatype.S with type t = deps_or_unassigned

include Datatype.S_no_copy with type t = deps_or_unassigned

include Datatype.Ty with type t = deps_or_unassigned

type t = deps_or_unassigned

see https://frama-c.com/download/frama-c-plugin-development-guide.pdf
Plug-in Development Guide

val ty : t Type.t

see https://frama-c.com/download/frama-c-plugin-development-guide.pdf
Plug-in Development Guide

val name : string

Unique name of the datatype.

val descr : t Descr.t

Datatype descriptor.

val packed_descr : Structural_descr.pack

Packed version of the descriptor.

val reprs : t list

List of representants of the descriptor.

val equal : t -> t -> bool

Equality: same spec than Stdlib.(=).

see https://frama-c.com/download/frama-c-plugin-development-guide.pdf
Plug-in Development Guide

val compare : t -> t -> int

Comparison: same spec than Stdlib.compare.

val hash : t -> int

Hash function: same spec than Hashtbl.hash.

val pretty : Format.formatter -> t -> unit

Pretty print each value in an user-friendly way.

see https://frama-c.com/download/frama-c-plugin-development-guide.pdf
Plug-in Development Guide

val mem_project : (Project_skeleton.t -> bool) -> t -> bool

mem_project f x must return true iff there is a value p of type Project.t in x such that f p returns true.

val copy : t -> t

Deep copy: no possible sharing between x and copy x.

val join : t -> t -> t

over-approximation of union

val is_included : t -> t -> bool

is first argument included in the second?

val bottom : t

smallest element

include Lattice_type.With_Top with type t := t

val top : t

largest element

include Lattice_type.With_Narrow with type t := t

val narrow : t -> t -> t

over-approximation of intersection

val default : t

val subst : (Deps.t -> Deps.t) -> t -> t

val extract_data : t -> Locations.Zone.t

val extract_indirect : t -> Locations.Zone.t

val may_be_unassigned : t -> bool

val compose : t -> t -> t

compose d1 d2 is the sequential composition of d1 after d2, ie. the dependencies needed to execute d1 after having executed d2. It is computed as d1 if d1 = AssignedFrom _ (as executing d1 completely overwrites what d2 wrote), and as a partial join between d1 and d2 in the other cases.

val pretty_precise : Format.formatter -> t -> unit

val to_zone : t -> Locations.Zone.t

val to_deps : t -> Deps.deps