CppClingo::Ground::BaseBdAggr Class Reference

The base capturing derived body aggregate atoms. More...

#include <body_aggregate.hh>

Inheritance diagram for CppClingo::Ground::BaseBdAggr:

Public Types
using	AtomMap = Util::ordered_map< Symbol const *, AtomBdAggr, Util::array_hash, Util::array_equal_to >
	Map containing the atoms.
Public Types inherited from CppClingo::Ground::BaseImpl< Symbol const *, BaseBdAggr >
using	Key = Symbol const *
	The key identifies an atom and is usually associated with further state.

Public Member Functions
	BaseBdAggr (size_t size)
	Construct an empty base.
auto	is_fact (Symbol const *sym) const -> bool
	Check if the given atom is a fact.
void	add (AtomMap::iterator it)
	Add an atom to the base.
auto	size () const -> size_t
	Get the number of derived atoms.
auto	index (Symbol const *sym) const -> size_t
	Get the atom index of the given symbol.
auto	nth (size_t i) const -> AtomMap::const_iterator
	Get the i-th atom in the base.
auto	nth (size_t i) -> AtomMap::iterator
	Get the i-th atom in the base.
auto	atoms () -> AtomMap &
	Get the underlying atom map (includes atoms not yet derived).
auto	contains (Key const &sym, MatcherType type) const -> std::optional< size_t >
	Check if the base contains the given atom with in the given generation.
Public Member Functions inherited from CppClingo::Ground::BaseImpl< Symbol const *, BaseBdAggr >
auto	begin (MatcherType type) const -> size_t
	Get the index of the first atom in the given generation.
auto	end (MatcherType type) const -> size_t
	Get the index plus one of the last atom in the given generation.
auto	contains (Key const &sym, MatcherType type) const -> std::optional< size_t >
	Check if the base contains the given atom with in the given generation.
void	update (size_t generation)
	Update the generation counts.
void	ensure (size_t generation)
	Ensure that atoms are added to the given generation.
auto	context () -> T &
	Get the context of the base with the desired type.
void	clear_context ()
	Clear the current context.
auto	has_update () const -> bool
	Check if the base has an update.

Detailed Description

The base capturing derived body aggregate atoms.

Member Function Documentation

add()

void CppClingo::Ground::BaseBdAggr::add

(

AtomMap::iterator

it

)

Add an atom to the base.

This function should be called during propagation if an aggregate can match.

index()

auto CppClingo::Ground::BaseBdAggr::index

(

Symbol const *

sym

)

const -> size_t

Get the atom index of the given symbol.

Note that only derived atoms have indices.

is_fact()

auto CppClingo::Ground::BaseBdAggr::is_fact

(

Symbol const *

sym

)

const -> bool

Check if the given atom is a fact.

This function does not take into account to which generation an atom belongs. It can also return true for atoms added to upcoming generations.

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The documentation for this class was generated from the following file:

• clingo/ground/body_aggregate.hh