Added default logger API

.clang-format

@@ -88,7 +88,7 @@ PenaltyExcessCharacter: 1000000
 PenaltyReturnTypeOnItsOwnLine: 60
 PointerAlignment: Right
 ReflowComments:  true
-SortIncludes:    true
+SortIncludes:    false
 SortUsingDeclarations: true
 SpaceAfterCStyleCast: false
 SpaceAfterTemplateKeyword: false

CMakeLists.txt

@@ -4,7 +4,7 @@
 #
 
 cmake_minimum_required(VERSION 3.1)
-project(spdlog VERSION 1.2.0 LANGUAGES CXX)
+project(spdlog VERSION 1.3.0 LANGUAGES CXX)
 include(CTest)
 include(CMakeDependentOption)
 include(GNUInstallDirs)

bench/async_bench.cpp

@@ -6,10 +6,11 @@
 //
 // bench.cpp : spdlog benchmarks
 //
+#include "spdlog/spdlog.h"
 #include "spdlog/async.h"
 #include "spdlog/sinks/basic_file_sink.h"
 #include "spdlog/sinks/stdout_color_sinks.h"
-#include "spdlog/spdlog.h"
+
 #include "utils.h"
 #include <atomic>
 #include <iostream>

bench/bench.cpp

@@ -6,12 +6,13 @@
 //
 // bench.cpp : spdlog benchmarks
 //
+#include "spdlog/spdlog.h"
 #include "spdlog/async.h"
 #include "spdlog/sinks/basic_file_sink.h"
 #include "spdlog/sinks/daily_file_sink.h"
 #include "spdlog/sinks/null_sink.h"
 #include "spdlog/sinks/rotating_file_sink.h"
-#include "spdlog/spdlog.h"
+
 #include "utils.h"
 #include <atomic>
 #include <cstdlib> // EXIT_FAILURE

bench/latency.cpp

@@ -6,12 +6,14 @@
 //
 // latency.cpp : spdlog latency benchmarks
 //
+
+#include "spdlog/spdlog.h"
 #include "spdlog/async.h"
 #include "spdlog/sinks/basic_file_sink.h"
 #include "spdlog/sinks/daily_file_sink.h"
 #include "spdlog/sinks/null_sink.h"
 #include "spdlog/sinks/rotating_file_sink.h"
-#include "spdlog/spdlog.h"
+
 #include "utils.h"
 #include <atomic>
 #include <cstdlib>

example/example.cpp

@@ -7,141 +7,123 @@
 //
 //
 
-#include <iostream>
+#include <cstdio>
 
-void stdout_example();
+void stdout_logger_example();
 void basic_example();
 void rotating_example();
 void daily_example();
 void async_example();
 void binary_example();
+void trace_example();
 void multi_sink_example();
 void user_defined_example();
 void err_handler_example();
 void syslog_example();
 void clone_example();
 
+#define SPDLOG_TRACE_ON
+#define SPDLOG_DEBUG_ON
 #include "spdlog/spdlog.h"
 
 int main(int, char *[])
 {
 
+    spdlog::info("Welcome to spdlog version {}.{}.{} !", SPDLOG_VER_MAJOR, SPDLOG_VER_MINOR, SPDLOG_VER_PATCH);
+    spdlog::warn("Easy padding in numbers like {:08d}", 12);
+    spdlog::critical("Support for int: {0:d};  hex: {0:x};  oct: {0:o}; bin: {0:b}", 42);
+    spdlog::info("Support for floats {:03.2f}", 1.23456);
+    spdlog::info("Positional args are {1} {0}..", "too", "supported");
+    spdlog::info("{:>8} aligned, {:>8} aligned", "right", "left");
+
+    // Runtime log levels
+    spdlog::set_level(spdlog::level::info); // Set global log level to info
+    spdlog::debug("This message should not be displayed!");
+    spdlog::set_level(spdlog::level::trace); // Set specific logger's log level
+    spdlog::debug("This message should be displayed..");
+
+    // Customize msg format for all loggers
+    spdlog::set_pattern("[%H:%M:%S %z] [%^%L%$] [thread %t] %v");
+    spdlog::info("This an info message with custom format");
+    spdlog::set_pattern("%+"); // back to default format
+
     try
     {
-        // console logging example
-        stdout_example();
-
-        // various file loggers
+        stdout_logger_example();
         basic_example();
         rotating_example();
         daily_example();
-
         clone_example();
-
-        // async logging using a backing thread pool
         async_example();
-
-        // log binary data
         binary_example();
-
-        // a logger can have multiple targets with different formats
         multi_sink_example();
-
-        // user defined types logging by implementing operator<<
         user_defined_example();
-
-        // custom  error handler
         err_handler_example();
+        trace_example();
 
-        // flush all *registered* loggers using a worker thread every 3 seconds.
+        // Flush all *registered* loggers using a worker thread every 3 seconds.
         // note: registered loggers *must* be thread safe for this to work correctly!
         spdlog::flush_every(std::chrono::seconds(3));
 
-        // apply some function on all registered loggers
+        // Apply some function on all registered loggers
         spdlog::apply_all([&](std::shared_ptr<spdlog::logger> l) { l->info("End of example."); });
 
-        // release any threads created by spdlog, and drop all loggers in the registry.
+        // Release all spdlog resources, and drop all loggers in the registry.
+        // This is optional (only mandatory if using windows + async log).
         spdlog::shutdown();
     }
-    // Exceptions will only be thrown upon failed logger or sink construction (not during logging)
+
+    // Exceptions will only be thrown upon failed logger or sink construction (not during logging).
     catch (const spdlog::spdlog_ex &ex)
     {
-        std::cout << "Log init failed: " << ex.what() << std::endl;
+        std::printf("Log initialization failed: %s\n", ex.what());
         return 1;
     }
 }
 
 #include "spdlog/sinks/stdout_color_sinks.h"
-// or #include "spdlog/sinks/stdout_sinks.h" if no colors needed
-void stdout_example()
+// or #include "spdlog/sinks/stdout_sinks.h" if no colors needed.
+void stdout_logger_example()
 {
-    // create color multi threaded logger
+    // Create color multi threaded logger.
     auto console = spdlog::stdout_color_mt("console");
-    console->info("Welcome to spdlog version {}.{}.{} !", SPDLOG_VER_MAJOR, SPDLOG_VER_MINOR, SPDLOG_VER_PATCH);
-    console->error("Some error message with arg: {}", 1);
-
-    auto err_logger = spdlog::stderr_color_mt("stderr");
-    err_logger->error("Some error message");
-
-    // Formatting examples
-    console->warn("Easy padding in numbers like {:08d}", 12);
-    console->critical("Support for int: {0:d};  hex: {0:x};  oct: {0:o}; bin: {0:b}", 42);
-    console->info("Support for floats {:03.2f}", 1.23456);
-    console->info("Positional args are {1} {0}..", "too", "supported");
-    console->info("{:<30}", "left aligned");
-
-    spdlog::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name)");
-
-    // Runtime log levels
-    spdlog::set_level(spdlog::level::info); // Set global log level to info
-    console->debug("This message should not be displayed!");
-    console->set_level(spdlog::level::trace); // Set specific logger's log level
-    console->debug("This message should be displayed..");
-
-    // Customize msg format for all loggers
-    spdlog::set_pattern("[%H:%M:%S %z] [%n] [%^---%L---%$] [thread %t] %v");
-    console->info("This an info message with custom format");
-    spdlog::set_pattern("%+"); // back to default format
-
-    // Compile time log levels
-    // define SPDLOG_DEBUG_ON or SPDLOG_TRACE_ON
-    SPDLOG_TRACE(console, "Enabled only #ifdef SPDLOG_TRACE_ON..{} ,{}", 1, 3.23);
-    SPDLOG_DEBUG(console, "Enabled only #ifdef SPDLOG_DEBUG_ON.. {} ,{}", 1, 3.23);
+    // or for stderr:
+    // auto console = spdlog::stderr_color_mt("error-logger");
 }
 
 #include "spdlog/sinks/basic_file_sink.h"
 void basic_example()
 {
-    // Create basic file logger (not rotated)
-    auto my_logger = spdlog::basic_logger_mt("basic_logger", "logs/basic-log.txt");
+    // Create basic file logger (not rotated).
+    auto my_logger = spdlog::basic_logger_mt("file_logger", "logs/basic-log.txt");
 }
 
 #include "spdlog/sinks/rotating_file_sink.h"
 void rotating_example()
 {
-    // Create a file rotating logger with 5mb size max and 3 rotated files
+    // Create a file rotating logger with 5mb size max and 3 rotated files.
     auto rotating_logger = spdlog::rotating_logger_mt("some_logger_name", "logs/rotating.txt", 1048576 * 5, 3);
 }
 
 #include "spdlog/sinks/daily_file_sink.h"
 void daily_example()
 {
-    // Create a daily logger - a new file is created every day on 2:30am
+    // Create a daily logger - a new file is created every day on 2:30am.
     auto daily_logger = spdlog::daily_logger_mt("daily_logger", "logs/daily.txt", 2, 30);
 }
 
-// clone a logger and give it new name.
-// Useful for creating component/subsystem loggers from some "root" logger
+// Clone a logger and give it new name.
+// Useful for creating component/subsystem loggers from some "root" logger.
 void clone_example()
 {
-    auto network_logger = spdlog::get("console")->clone("network");
+    auto network_logger = spdlog::get()->clone("network");
     network_logger->info("Logging network stuff..");
 }
 
 #include "spdlog/async.h"
 void async_example()
 {
-    // default thread pool settings can be modified *before* creating the async logger:
+    // Default thread pool settings can be modified *before* creating the async logger:
     // spdlog::init_thread_pool(32768, 1); // queue with max 32k items 1 backing thread.
     auto async_file = spdlog::basic_logger_mt<spdlog::async_factory>("async_file_logger", "logs/async_log.txt");
     // alternatively:
@@ -153,10 +135,10 @@ void async_example()
     }
 }
 
-// log binary data as hex.
-// many types of std::container<char> types can be used.
-// ranges are supported too.
-// format flags:
+// Log binary data as hex.
+// Many types of std::container<char> types can be used.
+// Iterator ranges are supported too.
+// Format flags:
 // {:X} - print in uppercase.
 // {:s} - don't separate each byte with space.
 // {:p} - don't print the position on each line start.
@@ -165,19 +147,25 @@ void async_example()
 #include "spdlog/fmt/bin_to_hex.h"
 void binary_example()
 {
-    auto console = spdlog::get("console");
     std::array<char, 80> buf;
-    console->info("Binary example: {}", spdlog::to_hex(buf));
-    console->info("Another binary example:{:n}", spdlog::to_hex(std::begin(buf), std::begin(buf) + 10));
+    spdlog::info("Binary example: {}", spdlog::to_hex(buf));
+    spdlog::info("Another binary example:{:n}", spdlog::to_hex(std::begin(buf), std::begin(buf) + 10));
     // more examples:
     // logger->info("uppercase: {:X}", spdlog::to_hex(buf));
     // logger->info("uppercase, no delimiters: {:Xs}", spdlog::to_hex(buf));
     // logger->info("uppercase, no delimiters, no position info: {:Xsp}", spdlog::to_hex(buf));
 }
 
-// create logger with 2 targets with different log levels and formats
-// the console will show only warnings or errors, while the file will log all
+// Compile time log levels.
+// Must define SPDLOG_DEBUG_ON or SPDLOG_TRACE_ON to turn them on.
+void trace_example()
+{
+    auto logger = spdlog::get();
+    SPDLOG_TRACE(logger, "Enabled only #ifdef SPDLOG_TRACE_ON..{} ,{}", 1, 3.23);
+    SPDLOG_DEBUG(logger, "Enabled only #ifdef SPDLOG_DEBUG_ON.. {} ,{}", 1, 3.23);
+}
 
+// A logger with multiple sinks (stdout and file) - each with a different format and log level.
 void multi_sink_example()
 {
     auto console_sink = std::make_shared<spdlog::sinks::stdout_color_sink_mt>();
@@ -192,7 +180,8 @@ void multi_sink_example()
     logger.warn("this should appear in both console and file");
     logger.info("this message should not appear in the console, only in the file");
 }
-// user defined types logging by implementing operator<<
+
+// User defined types logging by implementing operator<<
 #include "spdlog/fmt/ostr.h" // must be included
 struct my_type
 {
@@ -206,17 +195,14 @@ struct my_type
 
 void user_defined_example()
 {
-    spdlog::get("console")->info("user defined type: {}", my_type{14});
+    spdlog::info("user defined type: {}", my_type{14});
 }
 
-//
-// custom error handler
-//
+// Custom error handler. Will be triggered on log failure.
 void err_handler_example()
 {
     // can be set globally or per logger(logger->set_error_handler(..))
-    spdlog::set_error_handler([](const std::string &msg) { spdlog::get("console")->error("*** ERROR HANDLER EXAMPLE ***: {}", msg); });
-    spdlog::get("console")->info("some invalid message to trigger an error {}{}{}{}", 3);
+    spdlog::set_error_handler([](const std::string &msg) { printf("*** Custom log error handler: %s ***\n", msg.c_str()); });
 }
 
 // syslog example (linux/osx/freebsd)
@@ -230,7 +216,7 @@ void syslog_example()
 }
 #endif
 
-// Android example
+// Android example.
 #if defined(__ANDROID__)
 #include "spdlog/sinks/android_sink.h"
 void android_example()

example/multisink.cpp

+#include "spdlog/spdlog.h"
 #include "spdlog/sinks/basic_file_sink.h"
 #include "spdlog/sinks/stdout_sinks.h"
-#include "spdlog/spdlog.h"
+
 #include <iostream>
 #include <memory>
 

include/spdlog/details/pattern_formatter.h

@@ -508,10 +508,13 @@ class full_formatter final : public flag_formatter
 #endif
 
 #ifndef SPDLOG_NO_NAME
+        if (!msg.logger_name->empty())
+        {
             dest.push_back('[');
             fmt_helper::append_str(*msg.logger_name, dest);
             dest.push_back(']');
             dest.push_back(' ');
+        }
 #endif
 
         dest.push_back('[');

include/spdlog/details/registry.h

@@ -14,6 +14,14 @@
 #include "spdlog/details/periodic_worker.h"
 #include "spdlog/logger.h"
 
+// support for the default stdout color logger
+#ifdef _WIN32
+#include "spdlog/sinks/wincolor_sink.h"
+#else
+#include "spdlog/sinks/ansicolor_sink.h"
+
+#endif
+
 #include <chrono>
 #include <functional>
 #include <memory>
@@ -66,6 +74,25 @@ public:
         return found == loggers_.end() ? nullptr : found->second;
     }
 
+    std::shared_ptr<logger> get_default_logger() const
+    {
+        return default_logger_;
+    }
+
+    // set default logger.
+    // default logger is stored in default_logger_ (for faster retrieval) and in the map of existing loggers.
+    void set_default_logger(std::shared_ptr<logger> new_default_logger)
+    {
+        std::lock_guard<std::mutex> lock(logger_map_mutex_);
+        // remove previous default logger from the map
+        if (default_logger_ != nullptr)
+        {
+            loggers_.erase(default_logger_->name());
+        }
+        loggers_[new_default_logger->name()] = new_default_logger;
+        default_logger_ = std::move(new_default_logger);
+    }
+
     void set_tp(std::shared_ptr<thread_pool> tp)
     {
         std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
@@ -154,6 +181,7 @@ public:
     {
         std::lock_guard<std::mutex> lock(logger_map_mutex_);
         loggers_.clear();
+        default_logger_.reset();
     }
 
     // clean all reasources and threads started by the registry
@@ -187,6 +215,15 @@ private:
     registry()
         : formatter_(new pattern_formatter("%+"))
     {
+        // create default logger (stdout_color_mt).
+#ifdef _WIN32
+        auto color_sink = std::make_shared<sinks::wincolor_stdout_sink_mt>();
+#else
+        auto color_sink = std::make_shared<sinks::ansicolor_stdout_sink_mt>();
+#endif
+        SPDLOG_CONSTEXPR const char *default_logger_name = "";
+        default_logger_ = std::make_shared<spdlog::logger>(default_logger_name, std::move(color_sink));
+        loggers_[default_logger_name] = default_logger_;
     }
 
     ~registry() = default;
@@ -208,6 +245,7 @@ private:
     log_err_handler err_handler_;
     std::shared_ptr<thread_pool> tp_;
     std::unique_ptr<periodic_worker> periodic_flusher_;
+    std::shared_ptr<logger> default_logger_;
 };
 
 } // namespace details

include/spdlog/sinks/android_sink.h

@@ -5,6 +5,10 @@
 
 #pragma once
 
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/details/fmt_helper.h"
 #include "spdlog/details/null_mutex.h"
 #include "spdlog/details/os.h"

include/spdlog/sinks/ansicolor_sink.h

@@ -5,6 +5,10 @@
 
 #pragma once
 
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/details/console_globals.h"
 #include "spdlog/details/null_mutex.h"
 #include "spdlog/details/os.h"

include/spdlog/sinks/basic_file_sink.h

@@ -4,10 +4,14 @@
 //
 
 #pragma once
+
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/details/file_helper.h"
 #include "spdlog/details/null_mutex.h"
 #include "spdlog/sinks/base_sink.h"
-#include "spdlog/spdlog.h"
 
 #include <mutex>
 #include <string>

include/spdlog/sinks/daily_file_sink.h

@@ -4,11 +4,15 @@
 //
 
 #pragma once
+
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/details/file_helper.h"
 #include "spdlog/details/null_mutex.h"
 #include "spdlog/fmt/fmt.h"
 #include "spdlog/sinks/base_sink.h"
-#include "spdlog/spdlog.h"
 
 #include <chrono>
 #include <cstdio>

include/spdlog/sinks/dist_sink.h

@@ -5,6 +5,10 @@
 
 #pragma once
 
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "base_sink.h"
 #include "spdlog/details/log_msg.h"
 #include "spdlog/details/null_mutex.h"

include/spdlog/sinks/msvc_sink.h

@@ -5,6 +5,10 @@
 
 #pragma once
 
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #if defined(_WIN32)
 
 #include "spdlog/details/null_mutex.h"

include/spdlog/sinks/null_sink.h

@@ -5,6 +5,10 @@
 
 #pragma once
 
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/details/null_mutex.h"
 #include "spdlog/sinks/base_sink.h"
 
@@ -25,4 +29,17 @@ using null_sink_mt = null_sink<std::mutex>;
 using null_sink_st = null_sink<details::null_mutex>;
 
 } // namespace sinks
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> null_logger_mt(const std::string &logger_name)
+{
+    return Factory::template create<sinks::null_sink_mt>(logger_name);
+}
+
+template<typename Factory = default_factory>
+inline std::shared_ptr<logger> null_logger_st(const std::string &logger_name)
+{
+    return Factory::template create<sinks::null_sink_st>(logger_name);
+}
+
 } // namespace spdlog

include/spdlog/sinks/ostream_sink.h

@@ -5,6 +5,10 @@
 
 #pragma once
 
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/details/null_mutex.h"
 #include "spdlog/sinks/base_sink.h"
 

include/spdlog/sinks/rotating_file_sink.h

@@ -4,11 +4,15 @@
 //
 
 #pragma once
+
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/details/file_helper.h"
 #include "spdlog/details/null_mutex.h"
 #include "spdlog/fmt/fmt.h"
 #include "spdlog/sinks/base_sink.h"
-#include "spdlog/spdlog.h"
 
 #include <cerrno>
 #include <chrono>

include/spdlog/sinks/stdout_color_sinks.h

@@ -5,7 +5,10 @@
 
 #pragma once
 
-#include "spdlog/spdlog.h"
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #ifdef _WIN32
 #include "spdlog/sinks/wincolor_sink.h"
 #else

include/spdlog/sinks/stdout_sinks.h

@@ -5,9 +5,12 @@
 
 #pragma once
 
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/details/console_globals.h"
 #include "spdlog/details/null_mutex.h"
-#include "spdlog/spdlog.h"
 
 #include <cstdio>
 #include <memory>

include/spdlog/sinks/syslog_sink.h

@@ -5,8 +5,11 @@
 
 #pragma once
 
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/sinks/base_sink.h"
-#include "spdlog/spdlog.h"
 
 #include <array>
 #include <string>

include/spdlog/sinks/wincolor_sink.h

@@ -5,6 +5,10 @@
 
 #pragma once
 
+#ifndef SPDLOG_H
+#error "spdlog.h must be included before this file."
+#endif
+
 #include "spdlog/common.h"
 #include "spdlog/details/console_globals.h"
 #include "spdlog/details/null_mutex.h"

include/spdlog/spdlog.h

@@ -14,8 +14,6 @@
 #include "spdlog/logger.h"
 #include "spdlog/version.h"
 
-#include "spdlog/default_logger.h"
-
 #include <chrono>
 #include <functional>
 #include <memory>
@@ -128,19 +126,173 @@ inline void shutdown()
     details::registry::instance().shutdown();
 }
 
-///////////////////////////////////////////////////////////////////////////////
 //
-// Trace & Debug can be switched on/off at compile time for zero cost debug
-// statements.
+// API for using default logger (stdout_color_mt),
+// e.g: spdlog::info("Message {}", 1);
+//
+// The default logger object can be accessed using the spdlog::get():
+// For example, to add another sink to it:
+// spdlog::get()->sinks()->push_back(some_sink);
+//
+// The default logger can replaced using spdlog::set_default_logger(new_logger).
+// For example, to replace it with a file logger:
+// spdlog::set_default_logger(std::move(spdlog::basic_logger_st("mylog.txt"));
+//
+
+// Return the default logger
+// inline std::shared_ptr<spdlog::logger> get()
+//{
+//    return details::registry::instance().get_default_logger();
+//}
+
+inline std::shared_ptr<spdlog::logger> get()
+{
+    return details::registry::instance().get_default_logger();
+}
+
+inline void set_default_logger(std::shared_ptr<spdlog::logger> default_logger)
+{
+    details::registry::instance().set_default_logger(std::move(default_logger));
+}
+
+template<typename... Args>
+inline void log(level::level_enum lvl, const char *fmt, const Args &... args)
+{
+    get()->log(lvl, fmt, args...);
+}
+
+template<typename... Args>
+inline void trace(const char *fmt, const Args &... args)
+{
+    get()->trace(fmt, args...);
+}
+
+template<typename... Args>
+inline void debug(const char *fmt, const Args &... args)
+{
+    get()->debug(fmt, args...);
+}
+
+template<typename... Args>
+inline void info(const char *fmt, const Args &... args)
+{
+    get()->info(fmt, args...);
+}
+
+template<typename... Args>
+inline void warn(const char *fmt, const Args &... args)
+{
+    get()->warn(fmt, args...);
+}
+
+template<typename... Args>
+inline void error(const char *fmt, const Args &... args)
+{
+    get()->error(fmt, args...);
+}
+
+template<typename... Args>
+inline void critical(const char *fmt, const Args &... args)
+{
+    get()->critical(fmt, args...);
+}
+
+template<typename T>
+inline void log(level::level_enum lvl, const T &msg)
+{
+    get()->log(lvl, msg);
+}
+
+template<typename T>
+inline void trace(const T &msg)
+{
+    get()->trace(msg);
+}
+
+template<typename T>
+inline void debug(const T &msg)
+{
+    get()->debug(msg);
+}
+
+template<typename T>
+inline void info(const T &msg)
+{
+    get()->info(msg);
+}
+
+template<typename T>
+inline void warn(const T &msg)
+{
+    get()->warn(msg);
+}
+
+template<typename T>
+inline void error(const T &msg)
+{
+    get()->error(msg);
+}
+
+template<typename T>
+inline void critical(const T &msg)
+{
+    get()->critical(msg);
+}
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+template<typename... Args>
+inline void log(level::level_enum lvl, const wchar_t *fmt, const Args &... args)
+{
+    get()->log(lvl, fmt, args...);
+}
+
+template<typename... Args>
+inline void trace(const wchar_t *fmt, const Args &... args)
+{
+    get()->trace(fmt, args...);
+}
+
+template<typename... Args>
+inline void debug(const wchar_t *fmt, const Args &... args)
+{
+    get()->debug(fmt, args...);
+}
+
+template<typename... Args>
+inline void info(const wchar_t *fmt, const Args &... args)
+{
+    get()->info(fmt, args...);
+}
+
+template<typename... Args>
+inline void warn(const wchar_t *fmt, const Args &... args)
+{
+    get()->warn(fmt, args...);
+}
+
+template<typename... Args>
+inline void error(const wchar_t *fmt, const Args &... args)
+{
+    get()->error(fmt, args...);
+}
+
+template<typename... Args>
+inline void critical(const wchar_t *fmt, const Args &... args)
+{
+    get()->critical(fmt, args...);
+}
+
+#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
+
+//
+// Trace & Debug can be switched on/off at compile time with zero cost.
 // Uncomment SPDLOG_DEBUG_ON/SPDLOG_TRACE_ON in tweakme.h to enable.
 // SPDLOG_TRACE(..) will also print current file and line.
 //
 // Example:
 // spdlog::set_level(spdlog::level::trace);
-// SPDLOG_TRACE(my_logger, "some trace message");
 // SPDLOG_TRACE(my_logger, "another trace message {} {}", 1, 2);
-// SPDLOG_DEBUG(my_logger, "some debug message {} {}", 3, 4);
-///////////////////////////////////////////////////////////////////////////////
+//
 
 #ifdef SPDLOG_TRACE_ON
 #define SPDLOG_STR_H(x) #x
@@ -165,5 +317,4 @@ inline void shutdown()
 #endif
 
 } // namespace spdlog
-
-#endif // #define SPDLOG_H
+#endif // SPDLOG_H

include/spdlog/version.h

@@ -6,7 +6,7 @@
 #pragma once
 
 #define SPDLOG_VER_MAJOR 1
-#define SPDLOG_VER_MINOR 2
+#define SPDLOG_VER_MINOR 3
 #define SPDLOG_VER_PATCH 0
 
 #define SPDLOG_VERSION (SPDLOG_VER_MAJOR * 10000 + SPDLOG_VER_MINOR * 100 + SPDLOG_VER_PATCH)

tests/includes.h

@@ -14,6 +14,7 @@
 #define SPDLOG_DEBUG_ON
 #define SPDLOG_ENABLE_MESSAGE_COUNTER
 
+#include "spdlog/spdlog.h"
 #include "spdlog/async.h"
 #include "spdlog/sinks/basic_file_sink.h"
 #include "spdlog/sinks/daily_file_sink.h"
@@ -21,4 +22,3 @@
 #include "spdlog/sinks/ostream_sink.h"
 #include "spdlog/sinks/rotating_file_sink.h"
 #include "spdlog/sinks/stdout_color_sinks.h"
-#include "spdlog/spdlog.h"

tests/registry.cpp

@@ -12,8 +12,7 @@ TEST_CASE("register_drop", "[registry]")
     REQUIRE_THROWS_AS(spdlog::create<spdlog::sinks::null_sink_mt>(tested_logger_name), const spdlog::spdlog_ex &);
 }
 
-TEST_CASE("explicit register"
-          "[registry]")
+TEST_CASE("explicit register", "[registry]")
 {
     spdlog::drop_all();
     auto logger = std::make_shared<spdlog::logger>(tested_logger_name, std::make_shared<spdlog::sinks::null_sink_st>());
@@ -23,8 +22,7 @@ TEST_CASE("explicit register"
     REQUIRE_THROWS_AS(spdlog::create<spdlog::sinks::null_sink_mt>(tested_logger_name), const spdlog::spdlog_ex &);
 }
 
-TEST_CASE("apply_all"
-          "[registry]")
+TEST_CASE("apply_all", "[registry]")
 {
     spdlog::drop_all();
     auto logger = std::make_shared<spdlog::logger>(tested_logger_name, std::make_shared<spdlog::sinks::null_sink_st>());
@@ -45,8 +43,7 @@ TEST_CASE("apply_all"
     REQUIRE(counter == 1);
 }
 
-TEST_CASE("drop"
-          "[registry]")
+TEST_CASE("drop", "[registry]")
 {
     spdlog::drop_all();
     spdlog::create<spdlog::sinks::null_sink_mt>(tested_logger_name);
@@ -54,8 +51,7 @@ TEST_CASE("drop"
     REQUIRE_FALSE(spdlog::get(tested_logger_name));
 }
 
-TEST_CASE("drop_all"
-          "[registry]")
+TEST_CASE("drop_all", "[registry]")
 {
     spdlog::drop_all();
     spdlog::create<spdlog::sinks::null_sink_mt>(tested_logger_name);
@@ -65,8 +61,7 @@ TEST_CASE("drop_all"
     REQUIRE_FALSE(spdlog::get(tested_logger_name2));
 }
 
-TEST_CASE("drop non existing"
-          "[registry]")
+TEST_CASE("drop non existing", "[registry]")
 {
     spdlog::drop_all();
     spdlog::create<spdlog::sinks::null_sink_mt>(tested_logger_name);
@@ -75,3 +70,11 @@ TEST_CASE("drop non existing"
     REQUIRE(spdlog::get(tested_logger_name));
     spdlog::drop_all();
 }
+
+TEST_CASE("default logger", "[registry]")
+{
+    spdlog::drop_all();
+    spdlog::set_default_logger(std::move(spdlog::null_logger_st(tested_logger_name)));
+    REQUIRE(spdlog::get(tested_logger_name) == spdlog::get());
+    spdlog::drop_all();
+}

tests/test_misc.cpp

@@ -191,3 +191,42 @@ TEST_CASE("message_counter", "[message_counter]")
 
     REQUIRE(oss.str() == "000002 Hello again" + std::string(spdlog::details::os::default_eol));
 }
+
+TEST_CASE("default logger API", "[default logger]")
+{
+    std::ostringstream oss;
+    auto oss_sink = std::make_shared<spdlog::sinks::ostream_sink_mt>(oss);
+
+    spdlog::set_default_logger(std::make_shared<spdlog::logger>("oss", oss_sink));
+    spdlog::get()->set_pattern("%v");
+
+    spdlog::get()->set_level(spdlog::level::trace);
+    spdlog::trace("hello trace");
+    REQUIRE(oss.str() == "hello trace" + std::string(spdlog::details::os::default_eol));
+
+    oss.str("");
+    spdlog::debug("hello debug");
+    REQUIRE(oss.str() == "hello debug" + std::string(spdlog::details::os::default_eol));
+
+    oss.str("");
+    spdlog::info("Hello");
+    REQUIRE(oss.str() == "Hello" + std::string(spdlog::details::os::default_eol));
+
+    oss.str("");
+    spdlog::warn("Hello again {}", 2);
+    REQUIRE(oss.str() == "Hello again 2" + std::string(spdlog::details::os::default_eol));
+
+    oss.str("");
+    spdlog::error(123);
+    REQUIRE(oss.str() == "123" + std::string(spdlog::details::os::default_eol));
+
+    oss.str("");
+    spdlog::critical(std::string("some string"));
+    REQUIRE(oss.str() == "some string" + std::string(spdlog::details::os::default_eol));
+
+    oss.str("");
+    spdlog::set_level(spdlog::level::info);
+    spdlog::debug("should not be logged");
+    REQUIRE(oss.str().empty());
+    spdlog::drop_all();
+}