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[Consider merging] avoid a memory corruption issue in Netlist::flatten

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klayoutmatthias
2022-07-25 22:03:01 +02:00
parent 167bcbcc5f
commit da398e77fd
1 changed files with 2 additions and 0 deletions
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src/db/db/dbNetlist.cc
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@@ -505,6 +505,8 @@ void Netlist::flatten_circuit (Circuit *circuit)
void Netlist::flatten () void Netlist::flatten ()
{ {
db::NetlistLocker locker (this);
std::set<db::Circuit *> top_circuits; std::set<db::Circuit *> top_circuits;
size_t ntop = top_circuit_count (); size_t ntop = top_circuit_count ();
for (db::Netlist::top_down_circuit_iterator tc = begin_top_down (); tc != end_top_down () && ntop > 0; ++tc) { for (db::Netlist::top_down_circuit_iterator tc = begin_top_down (); tc != end_top_down () && ntop > 0; ++tc) {