emptiness_check::~emptiness_check) New methods.
(emptiness_check::check): Release all iterators in todo on exit.
(emptiness_check::counter_example): Rewrite the BFS logic.
* src/tgbaalgos/emptinesscheck.hh (emptiness_check::h_filt,
emptiness_check::~emptiness_check): New methods.

(tgba_tba_proxy_succ_iterator::~tgba_tba_proxy_succ_iterator):
Delete the proxied iterator.

Remove unused tmp_last, best_lst, and tmp_acc variables.

Rewrite initialization.

Fix memory leak.

Simplify, reorganize, and comment.
* src/tgbaalgos/emptinesscheck.hh (emptiness_check::root_component):
Rename as ...
(emptiness_check::root): ... this, to follow the paper.

`emptiness_check::'.

Rewrite.

emptiness_check::counter_example): Simplify access to hashes
after calls to find() for the same element..

Rename as ...
(connected_component::set_type): ... this, and define as a hash_set.
(connected_component::has_state): New method.
* src/tgbaalgos/emptinesscheck.cc (connected_component::has_state):
New method.
(emptiness_check::counter_example, emptiness_check::complete_cycle,
emptiness_check::accepting_path): Simplify using has_state().

Rename as ...
(emptiness_check::h): ... this, and define as a hash_map.
(emptiness_check::remove_component): Remove superfluous state_map
argument.
* src/tgbaalgos/emptinesscheck.cc: Adjust.

Remove superfluous includes.

New, take the automaton to work on, and store it ...
(emptiness_check::aut_): ... in this new attribute.
(emptiness_check::tgba_emptiness_check): Rename as ...
(emptiness_check::check): ... this, and remove the automata
argument.
(emptiness_check::counter_example, emptiness_check::print_result,
emptiness_check::remove_component, emptiness_check::accepting_path,
emptiness_check::complete_cycle): Remove the automata argument.
* src/tgbaalgos/emptinesscheck.cc, src/tgbatest/ltl2tgba.cc,
iface/gspn/ltlgspn.cc: Adjust.

connected_component::transition_acc,
connected_component::nb_transition,
connected_component::nb_state): Remove these unused attributes.
(connected_component::connected_component): Merge the two
definitions into one.
(connected_component::~connected_component): Remove.
(connected_component::isAccepted): Delete, unused.
* src/tgbaalgos/emptinesscheck.cc
(connected_component::connected_component,
connected_component::~connected_component): Adjust.
(connected_component::isAccepted): Delete.
(spot):

* src/tgbatest/emptchk.test: Typo.

(emptiness_check::remove_component, emptiness_check::root_component,
emptiness_check::seen_state_num, emptiness_check::suffix): Move in
private part.
(emptiness_check::arc_accepting, emptiness_check::todo): Move ...
* src/tgbaalgos/emptinesscheck.cc
(emptiness_check::tgba_emptiness_check): ... as local variables
of this function.
* src/tgbaalgos/emptinesscheck.hh (emptiness_check::vec_component):
Move ...
(emptiness_check::counter_example): ... as local variable of this
function.
* src/tgbaalgos/emptinesscheck.hh (pair_state_iter, triplet):
Move ...
* src/tgbaalgos/emptinesscheck.cc (pair_state_iter, triplet):
... here.

(emptiness_check::remove_component, emptiness_check::root_component,
emptiness_check::seen_state_num, emptiness_check::suffix): Move in
private part.
(emptiness_check::arc_accepting, emptiness_check::todo): Move ...
* src/tgbaalgos/emptinesscheck.cc
(emptiness_check::tgba_emptiness_check): ... as local variables
of this function.
* src/tgbaalgos/emptinesscheck.hh (emptiness_check::vec_component):
Move ...
(emptiness_check::counter_example): ... as local variable of this
function.
* src/tgbaalgos/emptinesscheck.hh (pair_state_iter, triplet):
Move ...
* src/tgbaalgos/emptinesscheck.cc (pair_state_iter, triplet):
... here.

Indent output as in the magic search.

* src/tgbatest/Makefile.am (check_PROGRAMS): Remove
emptinesscheckexplicit.
(emptinesscheckexplicit_SOURCES): Remove.
(TESTS): Replace emptinesscheckexplicit.test by emptchke.test.
* src/tgbatest/emptinesscheckexplicit.cc,
src/tgbatest/emptinesscheckexplicit.test: Delete.
* src/tgbatest/empchke.test: New file.
* src/tgbatest/ltl2tgba.cc: Add support for -X.

* src/tgbatest/Makefile (check_PRORGRAMS): Remove
emptinesscheck and ltlmagic.
(emptinesscheck_SOURCES, ltlmagic_SOURCES): Remove.
(TESTS): Replace emptinesscheck.test and ltlmagic.test by
emptchk.test.
* src/tgbatest/emptinesscheck.test, src/tgbatest/ltlmagic.test:
Delete.
* src/tgbatest/emptchk.test: New file.
* src/tgbatest/emptinesscheck.cc, src/tgbatest/ltlmagic.cc:
Delete.
* src/tgbatest/ltl2tgba.cc: Add support for -e, -E, -m, -M, and -n.

(emptiness_check::tgba_emptiness_check): Do not print anything.
(emptiness_check::counter_example): Assume that tgba_emptiness_check
has already been called.

(emptiness_check::seq_counter, emptiness_check::periode): Rename as ...
(emptiness_check::prefix, emptiness_check::period): ... these.

(emptiness_check::tgba_emptiness_check,
emptiness_check::accepting_path): Simplify BDD operations.

Reindent.
(emptiness_check::~emptiness_check, emptiness_check::emptiness_check):
Remove, unused.

only one atomic proposition.

bdd_init()'s arguments.

select algorithms, not #defines.
* iface/gspn/Makefile.am (check_PROGRAMS): Remove eltlgspn-srg,
efmgspn-srg, fmgspn-rg, and fmgspn-srg and their associated
source variables.  These are all replaced by
ltlgspn-rg and ltlgspn-srg.
* iface/gspn/dcswavefm.test, iface/gspn/dcswaveltl.test,
iface/gspn/dcswaveeltl.test, iface/gspn/udcsefm.test,
iface/gspn/udcseltl.test, iface/gspn/udcsfm.test,
iface/gspn/udcsltl.test: Adjust calls to ltlgspn-srg.

counter_example. And we print the prefix and the periode of
counter_example's result.

* src/tgbatest/emptinesscheckexplicit.cc (main):
We call tgba_emptiness_check before counter_example.
* src/tgbatest/emptinesscheck.cc (main):
We call tgba_emptiness_check before counter_example.

* src/tgbaalgos/emptinesscheck.hh (spot):
(spot::print_result): New methode to print the prefix and the
periode of counter_example's result.

* src/tgbaalgos/emptinesscheck.cc (spot): counter_example doesn't
call tgba_emptiness_check. counter_example must be executed after
calling tgba_emptiness_check.  Remove tgba_emptiness_check calls.
(print_result): New methode to print the prefix and the
periode of counter_example's result.  Remove most of all std::cout
during execution of emptiness_check's methodes.

* iface/gspn/Makefile.am (TESTS) Add them.
(check_PROGRAMS): Add emgspn-srg.
(efmgspn_srg_SOURCES, efmgspn_srg_LDADD, efmgspn_srg_CPPFLAGS): New
variables.
* iface/gspn/udcsltl.test, iface/gspn/udcseltl.test: Complete.

iface/gspn/dcswaveltl.test, iface/gspn/dcswaveeltl.test,
iface/gspn/dcswavefm.test: Do not accept $? = 0 when
a failure is expected.

* iface/gspn/Makefile.am (TESTS): Add them.
(XFAIL_TESTS): Add udcseltl.test.
* iface/gspn/example/udcs/udcs.net, iface/gspn/example/udcs/udcs.def
iface/gspn/example/udcs/udcs.tobs: New files.
* iface/gspn/Makefile.am (EXTRA_DIST): Add them.

(eltlgspn_srg_SOURCES, eltlgspn_srg_LDADD, eltlgspn_srg_CPPFLAGS):
New variables.
(TESTS): Add dcswaveeltl.test.
* iface/gspn/dcswaveeltl.test: New file.
* iface/gspn/ltlgspn.cc [CEC]: Use emptiness_check.

* Makefile.am (EXTRA_DIST): Add them.
* configure.ac: Call adl_ENABLE_DEVEL, adl_ENABLE_DEBUG, ad_GCC_OPTIM,
and adl_NDEBUG.

Declare as std::binary_function.
(state_ptr_hash): Declare as std::unary_function.
* src/tgbaalgos/lbtt.cc (state_acc_pair_equal,
state_acc_pair_hash): Likewise.
* src/misc/bddlt.hh (bdd_less_than): Likewise.
* src/misc/hash.hh (ptr_hash, string_hash): Likewise.

* src/tgbatest/emptinesscheckexplicit.cc (main): New file.

* src/tgbatest/emptinesscheck.test: New file.

* src/tgbatest/emptinesscheck.cc (main): New file.

* src/tgbaalgos/emptinesscheck.cc (spot): New method.

* src/tgbaalgos/emptinesscheck.hh: New interface.

* src/tgbaalgos/ltl2tgba_lacim.cc, src/tgbaalgos/ltl2tgba_lacim.hh:
... this, and rename ltl_to_tgba() as ltl_to_tgba_lacim as well.
* iface/gspn/ltlgspn.cc, src/tgbatest/explprod.cc,
src/tgbatest/ltl2tgba.cc, src/tgbatest/ltlmagic.cc,
src/tgbatest/ltlprod.cc, src/tgbatest/mixprod.cc,
src/tgbatest/tripprod.cc, wrap/python/spot.i,
wrap/python/cgi/ltl2tgba.in, wrap/python/tests/interdep.py,
wrap/python/tests/ltl2tgba.py: Adjust.

(state_ptr_equal, state_ptr_hash): New functors.
* src/tgba/statebdd.hh, src/tgba/statebdd.cc (state_bdd::hash):
New method.
* src/tgba/tgbaexplicit.hh, src/tgba/tgbaexplicit.cc
(state_explicit::hash): New method.
(ns_map, sn_map): Use Sgi::hash_map instead of std::map.
* src/tgba/tgbaproduct.hh, src/tgba/tgbaproduct.cc
(state_product::hash): New method.
* src/tgba/tgbatba.cc (state_tba_proxy::hash): New method.
* src/tgbaalgos/lbtt.cc (acp_seen, todo_set, seen_map): Redefine
using Sgi::hash_map or Sgi::hash_set.
(lbtt_reachable): Don't erase a key that is pointed to by an
iterator.
* src/tgbaalgos/reachiter.cc
(tgba_reachable_iterator::~tgba_reachable_iterator): Likewise.
* src/tgbaalgos/magic.cc (magic_search::~magic_search()): Likewise.
* src/tgbaalgos/magic.hh (hash_type): Redefine using Sgi::hash_map.
* src/tgbaalgos/reachiter.hh (seen_map): Redefine using Sgi::hash_map.
* iface/gspn/gspn.cc (state_gspn::hash): New method.
* src/misc/hash.hh (string_hash): New functor.