From edbc7684c321b4a0f92ecbf4c98663cf98a23344 Mon Sep 17 00:00:00 2001
From: Matt Liberty <mliberty@precisioninno.com>
Date: Sun, 16 Feb 2025 20:32:32 +0000
Subject: [PATCH] Add LibertyCell::leakagePower overload using std::optional

More modern C++ style

Signed-off-by: Matt Liberty <mliberty@precisioninno.com>
---
 include/sta/Liberty.hh |  2 ++
 liberty/Liberty.cc     | 10 ++++++++++
 2 files changed, 12 insertions(+)

diff --git a/include/sta/Liberty.hh b/include/sta/Liberty.hh
index 1ac7921f..0bdb3753 100644
--- a/include/sta/Liberty.hh
+++ b/include/sta/Liberty.hh
@@ -26,6 +26,7 @@
 
 #include <mutex>
 #include <atomic>
+#include <optional>
 
 #include "MinMax.hh"
 #include "RiseFallMinMax.hh"
@@ -474,6 +475,7 @@ public:
   void leakagePower(// Return values.
 		    float &leakage,
 		    bool &exists) const;
+  std::optional<float> leakagePower() const;
   bool leakagePowerExists() const { return leakage_power_exists_; }
 
   // Register, Latch or Statetable.
diff --git a/liberty/Liberty.cc b/liberty/Liberty.cc
index e4893739..e5324dc4 100644
--- a/liberty/Liberty.cc
+++ b/liberty/Liberty.cc
@@ -1307,6 +1307,16 @@ LibertyCell::leakagePower(// Return values.
   exists = leakage_power_exists_;
 }
 
+std::optional<float>
+LibertyCell::leakagePower() const
+{
+  std::optional<float> leakage;
+  if (leakage_power_exists_) {
+    leakage = leakage_power_;
+  }
+  return leakage;
+}
+
 void
 LibertyCell::finish(bool infer_latches,
 		    Report *report,