vcsn::detail::scc_impl< Aut, dijkstra_tag > Class Template Reference

Compute the strongly connected components using Dijkstra's algorithm. More...

#include <scc.hh>

Collaboration diagram for vcsn::detail::scc_impl< Aut, dijkstra_tag >:

Public Types
using	state_t = state_t_of< Aut >
using	component_t = detail::component_t< Aut >
using	components_t = detail::components_t< Aut >

Public Member Functions
	scc_impl (const Aut &aut)
const components_t &	components ()

Private Member Functions
void	dfs (state_t s)

Private Attributes
Aut	aut_
	Input automaton. More...
std::stack< state_t >	unassigned_
	Stack S contains all the vertices that have not yet been assigned to a strongly connected component, in the order in which the depth-first search reaches the vertices. More...
std::stack< state_t >	uncertain_
	Stack P contains vertices that have not yet been determined to belong to different strongly connected components from each other. More...
std::size_t	count_ = 0
	Current state number (not it's id, but its count). More...
std::unordered_map< state_t, size_t >	component_
	For each state, its component number. More...
std::unordered_map< state_t, size_t >	preorder_
components_t	components_
	All the components. More...

Detailed Description

template<Automaton Aut>
class vcsn::detail::scc_impl< Aut, dijkstra_tag >

Compute the strongly connected components using Dijkstra's algorithm.

https://en.wikipedia.org/wiki/Path-based_strong_component_algorithm

Definition at line 127 of file scc.hh.

Member Typedef Documentation

component_t

template<Automaton Aut>

using vcsn::detail::scc_impl< Aut, dijkstra_tag >::component_t = detail::component_t<Aut>

Definition at line 131 of file scc.hh.

components_t

template<Automaton Aut>

using vcsn::detail::scc_impl< Aut, dijkstra_tag >::components_t = detail::components_t<Aut>

Definition at line 132 of file scc.hh.

state_t

template<Automaton Aut>

using vcsn::detail::scc_impl< Aut, dijkstra_tag >::state_t = state_t_of<Aut>

Definition at line 130 of file scc.hh.

Constructor & Destructor Documentation

scc_impl()

template<Automaton Aut>

vcsn::detail::scc_impl< Aut, dijkstra_tag >::scc_impl ( const Aut &  aut )

inline

Definition at line 134 of file scc.hh.

Member Function Documentation

components()

template<Automaton Aut>

const components_t& vcsn::detail::scc_impl< Aut, dijkstra_tag >::components ( )

inline

Definition at line 138 of file scc.hh.

References vcsn::detail::reverse_postorder_impl< Aut >::aut_, vcsn::detail::reverse_postorder_impl< Aut >::dfs(), and vcsn::has().

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dfs()

template<Automaton Aut>

void vcsn::detail::scc_impl< Aut, dijkstra_tag >::dfs ( state_t  s )

inlineprivate

Definition at line 147 of file scc.hh.

References vcsn::detail::reverse_postorder_impl< Aut >::aut_, vcsn::detail::reverse_postorder_impl< Aut >::dfs(), vcsn::has(), vcsn::detail::out(), and vcsn::scc().

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Member Data Documentation

aut_

template<Automaton Aut>

Aut vcsn::detail::scc_impl< Aut, dijkstra_tag >::aut_

private

Input automaton.

Definition at line 184 of file scc.hh.

component_

template<Automaton Aut>

std::unordered_map<state_t, size_t> vcsn::detail::scc_impl< Aut, dijkstra_tag >::component_

private

For each state, its component number.

Definition at line 197 of file scc.hh.

components_

template<Automaton Aut>

components_t vcsn::detail::scc_impl< Aut, dijkstra_tag >::components_

private

All the components.

Definition at line 201 of file scc.hh.

count_

template<Automaton Aut>

std::size_t vcsn::detail::scc_impl< Aut, dijkstra_tag >::count_ = 0

private

Current state number (not it's id, but its count).

Definition at line 194 of file scc.hh.

preorder_

template<Automaton Aut>

std::unordered_map<state_t, size_t> vcsn::detail::scc_impl< Aut, dijkstra_tag >::preorder_

private

Definition at line 199 of file scc.hh.

unassigned_

template<Automaton Aut>

std::stack<state_t> vcsn::detail::scc_impl< Aut, dijkstra_tag >::unassigned_

private

Stack S contains all the vertices that have not yet been assigned to a strongly connected component, in the order in which the depth-first search reaches the vertices.

Definition at line 188 of file scc.hh.

uncertain_

template<Automaton Aut>

std::stack<state_t> vcsn::detail::scc_impl< Aut, dijkstra_tag >::uncertain_

private

Stack P contains vertices that have not yet been determined to belong to different strongly connected components from each other.

Definition at line 192 of file scc.hh.

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

• vcsn/algos/scc.hh