package bap-std

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package bap-std
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Graph nodes.

type t = node

node type is opaque

type graph = t

node type is opaque

the type of the node graph

type label

the type of the node graph

the label type

type edge = edge

the label type

the edge type

val create : label -> t

create x creates a node labeled with x.

For unlabeled graphs this is an identity function.

val label : t -> label

label n the label of the node n.

val mem : t -> graph -> bool

mem n g is true if n is a member of nodes N of graph g.

For labeled graphs the membership is tested without taking into account the label of the node.

val succs : t -> graph -> t Regular.Std.seq

succs node graph returns a sequence of successors of a node in a a given graph

val preds : t -> graph -> t Regular.Std.seq

preds node graph returns a sequence of predecessors of a node in a a given graph

val inputs : t -> graph -> edge Regular.Std.seq

inputs node graph is incoming edges of a node in graph

val outputs : t -> graph -> edge Regular.Std.seq

outputs node graph is outcomming edges of a node in graph

val degree : ?dir:[ `In | `Out ] -> t -> graph -> int

degree ?dir n when in_or_out is `In then returns the amount of incoming edges, otherwise returns the amount of outcomming edges. If parameter dir is left absent, then return the amount of adjacent nodes (i.e., a sum of incoming and outcomming edges).

val insert : t -> graph -> graph

insert n g returns new graph g' that has a set of nodes N extended with node n. If N was contained n, then the g == g'. Use update to change existing nodes.

Postconditions: 

          - N(g') = N(g) ∪ {n}.
val update : t -> label -> graph -> graph

update n l g for a graph with labeled nodes if node n is not in N(g) then returns g else returns graph g where node n is labeled with l.

For unlabeled graph returns g.

Postconditions: 

          - n ∉ N(g) -> n ∉ N(g').
          - n ∈ N(g) → ν(g')n = l.
val remove : t -> graph -> graph

remove n g returns graph g', with a node n removed from a set of nodes N.

Postconditions: 

          - E(g) ⊆ E(g')
          - N(g) ⊆ N(g')
          - N(g') = N(g) \ {n}.
val has_edge : t -> t -> graph -> bool

has_edge x y g is true iff (x,y) ∈ E.

val edge : t -> t -> graph -> edge option

edge x y g if graph g has an edge between nodes x and y then it is returned.

node provides common data structures, like Table, Map, Set, Hash_set, etc.

include Regular.Std.Opaque.S with type t := t
include Core_kernel.Comparable.S with type t := t
include Base.Comparable.S with type t := t
include Base.Comparisons.S with type t := t
include Base.Comparisons.Infix with type t := t
val (>=) : t -> t -> bool
val (<=) : t -> t -> bool
val (=) : t -> t -> bool
val (>) : t -> t -> bool
val (<) : t -> t -> bool
val (<>) : t -> t -> bool
val equal : t -> t -> bool
val min : t -> t -> t
val max : t -> t -> t
val ascending : t -> t -> int

ascending is identical to compare. descending x y = ascending y x. These are intended to be mnemonic when used like List.sort ~compare:ascending and List.sort ~cmp:descending, since they cause the list to be sorted in ascending or descending order, respectively.

val descending : t -> t -> int
val between : t -> low:t -> high:t -> bool

between t ~low ~high means low <= t <= high

val clamp_exn : t -> min:t -> max:t -> t

clamp_exn t ~min ~max returns t', the closest value to t such that between t' ~low:min ~high:max is true.

Raises if not (min <= max).

val clamp : t -> min:t -> max:t -> t Base.Or_error.t
include Base.Comparator.S with type t := t
type comparator_witness
val validate_lbound : min:t Base.Maybe_bound.t -> t Base.Validate.check
val validate_ubound : max:t Base.Maybe_bound.t -> t Base.Validate.check
val validate_bound : min:t Base.Maybe_bound.t -> max:t Base.Maybe_bound.t -> t Base.Validate.check
include Core_kernel.Hashable.S with type t := t
include Core_kernel.Hashable.Common with type t := t
val compare : t -> t -> Base.Int.t
val hash_fold_t : Base.Hash.state -> t -> Base.Hash.state
val hash : t -> Base.Hash.hash_value
val hashable : t Base.Hashable.t
module Table : Core_kernel.Hashtbl.S with type key = t
module Hash_set : Core_kernel.Hash_set.S with type elt = t
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