Use an other implementation of a null_stream for the logger

louloulibs/logger/logger.cpp

@@ -3,14 +3,18 @@
 
 Logger::Logger(const int log_level):
   log_level(log_level),
-  stream(std::cout.rdbuf())
+  stream(std::cout.rdbuf()),
+  null_buffer{},
+  null_stream{&null_buffer}
 {
 }
 
 Logger::Logger(const int log_level, const std::string& log_file):
   log_level(log_level),
   ofstream(log_file.data(), std::ios_base::app),
-  stream(ofstream.rdbuf())
+  stream(ofstream.rdbuf()),
+  null_buffer{},
+  null_stream{&null_buffer}
 {
 }
 

louloulibs/logger/logger.hpp

@@ -33,15 +33,15 @@
 # define __FILENAME__ __FILE__
 #endif
 
+
 /**
- * Juste a structure representing a stream doing nothing with its input.
+ * A buffer, used to construct an ostream that does nothing
+ * when we output data in it
  */
-class nullstream: public std::ostream
+class NullBuffer: public std::streambuf
 {
  public:
-  nullstream():
-    std::ostream(0)
-  { }
+  int overflow(int c) { return c; }
 };
 
 class Logger
@@ -59,9 +59,11 @@ public:
 
 private:
   const int log_level;
-  std::ofstream ofstream;
-  nullstream null_stream;
+  std::ofstream ofstream{};
   std::ostream stream;
+
+  NullBuffer null_buffer;
+  std::ostream null_stream;
 };
 
 #define WHERE __FILENAME__, ":", __LINE__, ":\t"