* src/tgbaalgos/minimize.cc (minimize): Don't add acceptance
conditions if the final set is empty.
* src/tgbaalgos/powerset.cc (tgba_powerset): Add the initial state
to acc_list if it is accepting. Also do not compute an SCC build
map if we don't have to build acc_list.
from the initial automaton.
* src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh:
Added class tgba_explicit_number, a tgba_explicit where states are
labelled by integers.
* src/tgbaalgos/powerset.hh, src/tgbaalgos/powerset.cc:
When building the deterministic automaton, keep track of which states
were created from an accepting state in the initial automaton.
The states are added to the new optional parameter (if not 0),
acc_list.
Use tgba_explicit_number instead of tgba_explicit_string to build
the result.
* src/tgbaalgos/scc.cc (spot): Small fix.
Print everything on std::cout.
tgba_explicit instances labelled by other objects than strings.
* src/tgba/tgbaexplicit.cc, src/tgba/tgbaexplicit.hh:
Split tgba_explicit in two levels: tgba_explicit with unlabelled
states, and tgba_explicit_labelled templated by the type of
the label. Define tgba_explicit_string (with the interface
of the former tgba_explicit class) and tgba_explicit_formula
for future use in ltl2tgba.cc.
* src/tgba/tgbareduc.cc, src/tgba/tgbareduc.hh,
src/tgbaalgos/cutscc.cc, src/tgbaalgos/dupexp.cc,
src/tgbaalgos/emptiness.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/tgbaalgos/powerset.cc, src/tgbaalgos/randomgraph.cc,
src/tgbaparse/public.hh, src/tgbaparse/tgbaparse.yy,
src/tgbatest/explicit.cc, src/tgbatest/ltl2tgba.cc: Adjust to
use tgba_explicit_string when appropriate.
