LibertyPort::capacitance()

include/sta/Liberty.hh

@@ -636,6 +636,7 @@ public:
 		  float &fanout_load,
 		  bool &exists) const;
   void setFanoutLoad(float fanout_load);
+  float capacitance() const;
   float capacitance(const RiseFall *rf,
 		    const MinMax *min_max) const;
   void capacitance(const RiseFall *rf,

include/sta/RiseFallMinMax.hh

@@ -36,6 +36,9 @@ public:
 	     float &value,
 	     bool &exists) const;
   bool hasValue() const;
+  void maxValue(// Return values
+		float &max_value,
+		bool &exists) const;
   bool empty() const;
   bool hasValue(const RiseFall *rf,
 		const MinMax *min_max) const;

liberty/Liberty.cc

@@ -1928,6 +1928,18 @@ LibertyPort::setCapacitance(const RiseFall *rf,
   }
 }
 
+float
+LibertyPort::capacitance() const
+{
+  float cap;
+  bool exists;
+  capacitance_.maxValue(cap, exists);
+  if (exists)
+    return cap;
+  else
+    return 0.0;
+}
+
 float
 LibertyPort::capacitance(const RiseFall *rf,
 			 const MinMax *min_max) const

sdc/RiseFallMinMax.cc

@@ -163,6 +163,23 @@ RiseFallMinMax::hasValue() const
   return !empty();
 }
 
+void
+RiseFallMinMax::maxValue(// Return values
+			 float &max_value,
+			 bool &exists) const
+{
+  max_value = MinMax::max()->initValue();
+  exists = false;
+  for (int rf_index=0;rf_index<RiseFall::index_count;rf_index++) {
+    for (int mm_index = 0; mm_index < MinMax::index_count; mm_index++) {
+      if (exists_[rf_index][mm_index]) {
+	max_value = std::max(max_value, values_[rf_index][mm_index]);
+	exists = true;
+      }
+    }
+  }
+}
+
 bool
 RiseFallMinMax::empty() const
 {