For easier call of OpenRoad::writeDef() in gdb. API prototype is changed.

Signed-off-by: Jaehyun Kim <[email protected]>

Author: jhkim-pii

include/ord/OpenRoad.hh

@@ -189,7 +189,7 @@ class OpenRoad
 
   void writeDef(const char* filename,
                 // major.minor (avoid including defout.h)
-                const string& version);
+                const char* version);
 
   void writeCdl(const char* out_filename,
                 const std::vector<const char*>& masters_filenames,

src/OpenRoad.cc

@@ -348,7 +348,7 @@ static odb::defout::Version stringToDefVersion(const string& version)
   return odb::defout::Version::DEF_5_8;
 }
 
-void OpenRoad::writeDef(const char* filename, const string& version)
+void OpenRoad::writeDef(const char* filename, const char* version)
 {
   odb::dbChip* chip = db_->getChip();
   if (chip) {