added some stuff to reduce compiler warnings of unused vars

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@224 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

include/NullLogger.h

@@ -56,25 +56,25 @@ class ASSIMP_API NullLogger : public Logger
 {
 public:
 	/**	@brief	Logs a debug message */
-	void debug(const std::string &message) {}
+	void debug(const std::string &message) { (void)message;}  //this avoids compiler warnings
 
 	/**	@brief	Logs an info message */
-	void info(const std::string &message) {}
+	void info(const std::string &message) {(void)message;}  //this avoids compiler warnings
 
 	/**	@brief	Logs a warning message */
-	void warn(const std::string &message) {}
+	void warn(const std::string &message) {(void)message;}  //this avoids compiler warnings
 	
 	/**	@brief	Logs an error message */
-	void error(const std::string &message) {}
+	void error(const std::string &message) {(void)message;}  //this avoids compiler warnings
 
 	/** @brief Log severity setter */
-	void setLogSeverity(LogSeverity log_severity) {}
+	void setLogSeverity(LogSeverity log_severity) {(void)log_severity;}  //this avoids compiler warnings
 
 	/**	@brief	Detach a still attached stream from logger */
-	void attachStream(LogStream *pStream, unsigned int severity) {}
+	void attachStream(LogStream *pStream, unsigned int severity) {(void)pStream; (void)severity;}  //this avoids compiler warnings
 
 	/**	@brief	Detach a still attached stream from logger */
-	void detatchStream(LogStream *pStream, unsigned int severity) {}
+	void detatchStream(LogStream *pStream, unsigned int severity) {(void)pStream; (void)severity;}  //this avoids compiler warnings
 };
 
 }