1 files changed, 25 insertions, 0 deletions
diff --git a/src/logger_base.hh b/src/logger_base.hh
new file mode 100644
index 0000000..56911f0
--- /dev/null
+++ b/src/logger_base.hh
@@ -0,0 +1,25 @@
+#ifndef LOGGER_BASE_HH
+#define LOGGER_BASE_HH
+
+#include <string_view>
+
+#include "logger.hh"
+
+class LoggerBase : public Logger {
+public:
+  void err(char const* format, ...) override;
+  void warn(char const* format, ...) override;
+  void info(char const* format, ...) override;
+#ifndef NDEBUG
+  void dbg(char const* format, ...) override;
+#endif
+
+protected:
+  enum class Level {
+    ERR, WARN, INFO, DBG
+  };
+
+  virtual void msg(Level level, std::string_view str) = 0;
+};
+
+#endif  // LOGGER_BASE_HH