Fixed #1197

include/spdlog/async_logger-inl.h

@@ -83,3 +83,10 @@ SPDLOG_INLINE void spdlog::async_logger::backend_flush_()
         SPDLOG_LOGGER_CATCH()
     }
 }
+
+SPDLOG_INLINE std::shared_ptr<spdlog::logger> spdlog::async_logger::clone(std::string new_name)
+{
+    auto cloned = std::make_shared<spdlog::async_logger>(*this);
+    cloned->name_ = std::move(new_name);
+    return cloned;
+}

include/spdlog/async_logger.h

@@ -49,6 +49,8 @@ public:
     async_logger(std::string logger_name, sink_ptr single_sink, std::weak_ptr<details::thread_pool> tp,
         async_overflow_policy overflow_policy = async_overflow_policy::block);
 
+    std::shared_ptr<logger> clone(std::string new_name) override;
+
 protected:
     void sink_it_(const details::log_msg &msg) override;
     void flush_() override;

include/spdlog/fmt/bin_to_hex.h

@@ -122,7 +122,6 @@ struct formatter<spdlog::details::bytes_range<T>>
         auto inserter = ctx.out();
 #endif
 
-
         for (auto &item : the_range)
         {
             auto ch = static_cast<unsigned char>(item);

include/spdlog/logger-inl.h

@@ -162,6 +162,14 @@ SPDLOG_INLINE void logger::set_error_handler(err_handler handler)
     custom_err_handler_ = handler;
 }
 
+// create new logger with same sinks and configuration.
+SPDLOG_INLINE std::shared_ptr<logger> logger::clone(std::string logger_name)
+{
+    auto cloned = std::make_shared<logger>(*this);
+    cloned->name_ = std::move(logger_name);
+    return cloned;
+}
+
 // protected methods
 SPDLOG_INLINE void logger::sink_it_(const details::log_msg &msg)
 {

include/spdlog/logger.h

@@ -356,6 +356,9 @@ public:
     // error handler
     void set_error_handler(err_handler);
 
+    // create new logger with same sinks and configuration.
+    virtual std::shared_ptr<logger> clone(std::string logger_name);
+
 protected:
     std::string name_;
     std::vector<sink_ptr> sinks_;