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overhaul stoi and itos to fix #1957 and related

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2018-11-23 18:50:20 -08:00
parent 801026937d
commit 88fb826a03
3 changed files with 106 additions and 97 deletions
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14
src/math/automata/automaton.h
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@ -428,7 +428,18 @@ public:
add(mv);
}
}
else if (1 == out_degree(src) && (is_final_state(src) || !is_final_state(dst))) {
moves const& mvs = m_delta[dst];
moves mvs1;
for (move const& mv : mvs) {
mvs1.push_back(move(m, src, mv.dst(), mv.t()));
}
for (move const& mv : mvs1) {
add(mv);
}
}
else {
TRACE("seq", tout << "epsilon not removed " << out_degree(src) << " " << is_final_state(src) << " " << is_final_state(dst) << "\n";);
continue;
}
remove(src, dst, nullptr);
@ -600,13 +611,14 @@ private:
}
}
#if 0
void remove_dead_states() {
unsigned_vector remap;
for (unsigned i = 0; i < m_delta.size(); ++i) {
}
}
#endif
void add(move const& mv) {
if (!is_duplicate_cheap(mv)) {