Coverity scan:

include/DebugStream.h

@@ -269,19 +269,19 @@ class DebugStream : public std::ostream
 
 		// private:
 		/// The current debug level
-		Debug::type dt;
+		Debug::type dt = { Debug::NONE };
 		/// The no-op stream.
 		std::ostream nullstream;
 		///
 		struct debugstream_internal;
 		///
-		debugstream_internal* internal;
-		bool show_datetime;
-		bool show_logtype;
-		std::string fname;
+		debugstream_internal* internal = { 0 };
+		bool show_datetime = { true };
+		bool show_logtype = { true };
+		std::string fname = { "" };
 
 		StreamEvent_Signal s_stream;
-		std::string logname;
+		std::string logname = { "" };
 
 		bool isWriteLogFile = { false };
 };

src/Log/DebugStream.cc

@@ -43,7 +43,7 @@ using std::ios;
 
 /// Constructor, sets the debug level to t.
 DebugStream::DebugStream(Debug::type t)
-	: ostream(new debugbuf(cerr.rdbuf())),
+	: /* ostream(new debugbuf(cerr.rdbuf())),*/
 	  dt(t), nullstream(new nullbuf), internal(new debugstream_internal),
 	  show_datetime(true), show_logtype(true),
 	  fname(""),
@@ -56,7 +56,7 @@ DebugStream::DebugStream(Debug::type t)
 //--------------------------------------------------------------------------
 /// Constructor, sets the log file to f, and the debug level to t.
 DebugStream::DebugStream(char const* f, Debug::type t, bool truncate )
-	: ostream(new debugbuf(cerr.rdbuf())),
+	: /* ostream(new debugbuf(cerr.rdbuf())), */
 	  dt(t), nullstream(new nullbuf),
 	  internal(new debugstream_internal),
 	  show_datetime(true), show_logtype(true),