Merge pull request The-OpenROAD-Project#5110 from gadfort/int64-block

odb: provide dbuToMicrons for various datatypes to avoid casting errors

src/odb/include/odb/db.h

@@ -1186,6 +1186,9 @@ class dbBlock : public dbObject
   /// Convert a length from database units (DBUs) to microns.
   ///
   double dbuToMicrons(int dbu);
+  double dbuToMicrons(unsigned int dbu);
+  double dbuToMicrons(int64_t dbu);
+  double dbuToMicrons(double dbu);
 
   ///
   /// Convert an area from database units squared (DBU^2) to square microns.

src/odb/src/db/dbBlock.cpp

@@ -2319,7 +2319,25 @@ int dbBlock::getDbUnitsPerMicron()
   return block->_dbu_per_micron;
 }
 
-double dbBlock::dbuToMicrons(const int dbu)
+double dbBlock::dbuToMicrons(int dbu)
+{
+  const double dbu_micron = getTech()->getDbUnitsPerMicron();
+  return dbu / dbu_micron;
+}
+
+double dbBlock::dbuToMicrons(unsigned int dbu)
+{
+  const double dbu_micron = getTech()->getDbUnitsPerMicron();
+  return dbu / dbu_micron;
+}
+
+double dbBlock::dbuToMicrons(int64_t dbu)
+{
+  const double dbu_micron = getTech()->getDbUnitsPerMicron();
+  return dbu / dbu_micron;
+}
+
+double dbBlock::dbuToMicrons(double dbu)
 {
   const double dbu_micron = getTech()->getDbUnitsPerMicron();
   return dbu / dbu_micron;