package frama-c

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Platform dedicated to the analysis of source code written in C

Install 

dune-project
 Dependency

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

Authors

  1. M
    Michele Alberti
  2. T
    Thibaud Antignac
  3. G
    Gergö Barany
  4. P
    Patrick Baudin
  5. T
    Thibaut Benjamin
  6. A
    Allan Blanchard
  7. L
    Lionel Blatter
  8. F
    François Bobot
  9. R
    Richard Bonichon
  10. Q
    Quentin Bouillaguet
  11. D
    David Bühler
  12. Z
    Zakaria Chihani
  13. L
    Loïc Correnson
  14. J
    Julien Crétin
  15. P
    Pascal Cuoq
  16. Z
    Zaynah Dargaye
  17. B
    Basile Desloges
  18. J
    Jean-Christophe Filliâtre
  19. P
    Philippe Herrmann
  20. M
    Maxime Jacquemin
  21. F
    Florent Kirchner
  22. A
    Alexander Kogtenkov
  23. T
    Tristan Le Gall
  24. J
    Jean-Christophe Léchenet
  25. M
    Matthieu Lemerre
  26. D
    Dara Ly
  27. D
    David Maison
  28. C
    Claude Marché
  29. A
    André Maroneze
  30. T
    Thibault Martin
  31. F
    Fonenantsoa Maurica
  32. M
    Melody Méaulle
  33. B
    Benjamin Monate
  34. Y
    Yannick Moy
  35. A
    Anne Pacalet
  36. V
    Valentin Perrelle
  37. G
    Guillaume Petiot
  38. D
    Dario Pinto
  39. V
    Virgile Prevosto
  40. A
    Armand Puccetti
  41. F
    Félix Ridoux
  42. V
    Virgile Robles
  43. M
    Muriel Roger
  44. J
    Julien Signoles
  45. N
    Nicolas Stouls
  46. K
    Kostyantyn Vorobyov
  47. B
    Boris Yakobowski

Maintainers

  1. F
    frama-ci-bot@frama-c.com

Sources

frama-c-27.0-beta-Cobalt.tar.gz
sha256=9c1b14a689ac8ccda9e827c2eede13bb8d781fb8e4e33c1b5360408e312127d2

doc/frama-c.kernel/Frama_c_kernel/Offsetmap/Make/argument-1-V/index.html

Parameter Make.V

type numerical_widen_hint
type size_widen_hint = Integer.t
include Lattice_type.Bounded_Join_Semi_Lattice
include Lattice_type.Join_Semi_Lattice

datatype of element of the lattice

include Datatype.S
include Datatype.S_no_copy
include Datatype.Ty
type t
val ty : t Type.t
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.(=).

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.

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_Widening with type t := t and type widen_hint = size_widen_hint * numerical_widen_hint

hints for the widening

val widen : widen_hint -> t -> t -> t

widen h t1 t2 is an over-approximation of join t1 t2. Assumes is_included t1 t2

include Lattice_type.With_Cardinal_One with type t := t
val cardinal_zero_or_one : t -> bool
val pretty_typ : Cil_types.typ option -> t Pretty_utils.formatter

Isotropy

val is_isotropic : t -> bool

Are the bits independent?

val topify_with_origin : Origin.t -> t -> t

Force a value to be isotropic, when a loss of imprecision occurs. The resulting value must verify is_isotropic.

Reading bits of values

val extract_bits : topify:Origin.kind -> start:Integer.t -> stop:Integer.t -> size:Integer.t -> t -> bool * t

Extract the bits between start and stop in the value of type t, assuming this value has size bits. Return the corresponding value, and a boolean indicating that an imprecision occurred during the operation. In the latter case, the origin of the imprecision is flagged as having kind topify.

val shift_bits : topify:Origin.kind -> offset:Integer.t -> size:Integer.t -> t -> t

Left-shift the given value, of size size, by offset bits. topify indicates which operation caused this shift to take place, for imprecision tracking.

val merge_distinct_bits : topify:Origin.kind -> conflate_bottom:bool -> t -> t -> t

Merge the bits of the two given values, that span disjoint bit ranges by construction. (So either an abstraction of + or | are correct implementations.)

The conflate_bottom argument deals with bottom values in either of the arguments. If conflate_bottom holds, any pre-existing bottom value must result in bottom. Otherwise, the bottom value is ignored.

topify indicates which operation caused this merge to take place, for imprecision tracking.

val merge_neutral_element : t

Value that can be passed to merge_distinct_bits as the starting value. This value must be neutral wrt. merging of values.

val anisotropic_cast : size:Integer.t -> t -> t

Optionnally change the representation of the given value, under the assumption that it fits in size bits. Returning the value argument is alwas correct.