spot/src/tgbaalgos/powerset.hh
Alexandre Duret-Lutz 574a228583 Introduce a destroy() method on states, and use it instead of delete.
Right now, destroy() just executes "delete this".  But in a later
version, we will rewrite tgba_explicit so that it does not
allocate new states (and the destroy() method for explicit state
will do nothing).

* src/tgba/state.hh (state::destroy): New method, to replace
state::~state() in the future.
(shared_state_deleter): New function.
* src/evtgba/product.cc, src/evtgbaalgos/reachiter.cc,
src/evtgbaalgos/save.cc, src/evtgbaalgos/tgba2evtgba.cc,
src/tgba/tgba.cc, src/tgba/tgbaproduct.cc, src/tgba/tgbareduc.cc,
src/tgba/tgbasafracomplement.cc, src/tgba/tgbasgba.cc,
src/tgba/tgbatba.cc, src/tgba/tgbaunion.cc, src/tgba/wdbacomp.cc,
src/tgbaalgos/cutscc.cc, src/tgbaalgos/emptiness.cc,
src/tgbaalgos/gtec/ce.cc, src/tgbaalgos/gtec/explscc.cc,
src/tgbaalgos/gtec/gtec.cc, src/tgbaalgos/gtec/nsheap.cc,
src/tgbaalgos/gv04.cc, src/tgbaalgos/magic.cc,
src/tgbaalgos/minimize.cc, src/tgbaalgos/ndfs_result.hxx,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/powerset.hh,
src/tgbaalgos/reachiter.cc, src/tgbaalgos/reducerun.cc,
src/tgbaalgos/reductgba_sim.cc,
src/tgbaalgos/reductgba_sim_del.cc, src/tgbaalgos/replayrun.cc,
src/tgbaalgos/safety.cc, src/tgbaalgos/save.cc,
src/tgbaalgos/scc.cc, src/tgbaalgos/se05.cc,
src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03opt.cc: Adjust to call
"s->destroy()" instead of "delete s".
* src/saba/sabacomplementtgba.cc, src/tgba/tgbakvcomplement.cc:
Pass shared_state_deleter to the shared_ptr constructor, so that
it calls destroy() instead of delete.
2011-01-27 10:48:48 +01:00

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C++

// Copyright (C) 2011 Laboratoire de Recherche et Développement de
// l'Epita.
// Copyright (C) 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
// département Systèmes Répartis Coopératifs (SRC), Université Pierre
// et Marie Curie.
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Spot; see the file COPYING. If not, write to the Free
// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
#ifndef SPOT_TGBAALGOS_POWERSET_HH
# define SPOT_TGBAALGOS_POWERSET_HH
# include <list>
# include <map>
# include "tgba/tgbaexplicit.hh"
namespace spot
{
struct power_map
{
typedef std::set<const state*, state_ptr_less_than> power_state;
typedef std::map<int, power_state> power_map_data;
typedef Sgi::hash_set<const state*, state_ptr_hash,
state_ptr_equal> state_set;
~power_map()
{
// Release all states.
state_set::const_iterator i = states.begin();
while (i != states.end())
{
// Advance the iterator before deleting the key.
const state* s = *i;
++i;
s->destroy();
}
}
const power_state&
states_of(int s) const
{
return map_.find(s)->second;
}
const state*
canonicalize(const state* s)
{
state_set::const_iterator i = states.find(s);
if (i != states.end())
{
s->destroy();
s = *i;
}
else
{
states.insert(s);
}
return s;
}
power_map_data map_;
state_set states;
};
/// \brief Build a deterministic automaton, ignoring acceptance conditions.
/// \ingroup tgba_misc
///
/// This create a deterministic automaton that recognizes the
/// same language as \a aut would if its acceptance conditions
/// were ignored. This is the classical powerset algorithm.
///
/// If \a pm is supplied it will be filled with the set of original states
/// associated to each state of the deterministic automaton.
//@{
tgba_explicit_number* tgba_powerset(const tgba* aut, power_map& pm);
tgba_explicit_number* tgba_powerset(const tgba* aut);
//@}
}
#endif // SPOT_TGBAALGOS_POWERSET_HH