Merge pull request #7390 from Faholan/leak-piniterator

Use a unique_ptr for pinIterator

Author: maliberty

src/dbSta/src/dbReadVerilog.cc

@@ -492,7 +492,7 @@ void Verilog2db::makeModITerms(Instance* inst, dbModInst* modinst)
   // make the instance iterms and set up their reference
   // to the child ports (dbModBTerms).
 
-  InstancePinIterator* ip_iter = network_->pinIterator(inst);
+  std::unique_ptr<InstancePinIterator> ip_iter(network_->pinIterator(inst));
   while (ip_iter->hasNext()) {
     Pin* cur_pin = ip_iter->next();
     const std::string pin_name_string = network_->portName(cur_pin);

src/rsz/src/SwapPinsMove.cc

@@ -143,7 +143,7 @@ void SwapPinsMove::swapPins(Instance* inst,
   odb::dbModNet* mod_net_pin2 = nullptr;
   odb::dbNet* flat_net_pin2 = nullptr;
 
-  InstancePinIterator* pin_iter = network_->pinIterator(inst);
+  std::unique_ptr<InstancePinIterator> pin_iter(network_->pinIterator(inst));
   found_pin1 = found_pin2 = nullptr;
   net1 = net2 = nullptr;
   while (pin_iter->hasNext()) {