1. Added test

2. Fixes

include/c11log/sinks/stdout_sinks.h

@@ -1,41 +1,38 @@
+#pragma once
 
 #include <iostream>
 #include "base_sink.h"
 
 namespace c11log
 {
-	namespace sinks
+namespace sinks
+{
+class ostream_sink: public base_sink
+{
+public:
+	ostream_sink(std::ostream& os):_ostream(os) {}
+    virtual ~ostream_sink() = default;
+
+protected:
+	virtual void sink_it_(const std::string& msg) override
 	{
-		class ostream_sink:public base_sink
-		{
-		public:
-			ostream_sink(std::ostream& os):_ostream(os)
-			{}
-
-			virtual ~ostream_sink()
-			{}
-
-		protected:
-			virtual void _sink_it(const std::string& msg)
-			{
-				_ostream << msg;
-			}
-			std::ostream& _ostream;
-
-		};
-
-		class stdout_sink:public ostream_sink
-		{
-		public:
-			stdout_sink():ostream_sink(std::cout)
-			{}
-		};
-
-		class stderr_sink:public ostream_sink
-		{
-		public:
-			stderr_sink():ostream_sink(std::cerr)
-			{}
-		};
+		_ostream << msg;
 	}
+
+	std::ostream& _ostream;
+};
+
+class stdout_sink:public ostream_sink
+{
+public:
+    stdout_sink():ostream_sink(std::cout) {}
+};
+
+class stderr_sink:public ostream_sink
+{
+public:
+    stderr_sink():ostream_sink(std::cerr) {}
+	
+};
+}
 }