diff --git a/example/example.cpp b/example/example.cpp
index 345f8bd1..b42c9440 100644
--- a/example/example.cpp
+++ b/example/example.cpp
@@ -7,229 +7,19 @@
 //
 //
 
-#include <cstdio>
+#include "spdlog/logger.h"
+
+
+namespace spdlog {
+class logger;
+}
+
+spdlog::logger *get_logger();
 
-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();
 
-#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
-    {
-        stdout_logger_example();
-        basic_example();
-        rotating_example();
-        daily_example();
-        clone_example();
-        async_example();
-        binary_example();
-        multi_sink_example();
-        user_defined_example();
-        err_handler_example();
-        trace_example();
-
-        // 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
-        spdlog::apply_all([&](std::shared_ptr<spdlog::logger> l) { l->info("End of example."); });
-
-        // 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).
-    catch (const spdlog::spdlog_ex &ex)
-    {
-        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_logger_example()
-{
-    // Create color multi threaded logger.
-    auto console = spdlog::stdout_color_mt("console");
-    // 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("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.
-    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.
-    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.
-void clone_example()
-{
-    auto network_logger = spdlog::default_logger()->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:
-    // 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:
-    // auto async_file = spdlog::create_async<spdlog::sinks::basic_file_sink_mt>("async_file_logger", "logs/async_log.txt");
-
-    for (int i = 1; i < 101; ++i)
-    {
-        async_file->info("Async message #{}", i);
-    }
-}
-
-// 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.
-// {:n} - don't split the output to lines.
-
-#include "spdlog/fmt/bin_to_hex.h"
-void binary_example()
-{
-    std::vector<char> buf;
-    for (int i = 0; i < 80; i++)
-    {
-        buf.push_back(static_cast<char>(i & 0xff));
-    }
-    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));
-}
-
-// Compile time log levels.
-// define SPDLOG_ACTIVE_LEVEL to required level (e.g. SPDLOG_LEVEL_TRACE)
-void trace_example()
-{
-    // trace from default logger
-    SPDLOG_TRACE("Some trace message.. {} ,{}", 1, 3.23);
-    // debug from default logger
-    SPDLOG_DEBUG("Some debug message.. {} ,{}", 1, 3.23);
-
-    // trace from logger object
-    auto logger = spdlog::get("file_logger");
-    SPDLOG_LOGGER_TRACE(logger, "another trace message");
-}
-
-// 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>();
-    console_sink->set_level(spdlog::level::warn);
-    console_sink->set_pattern("[multi_sink_example] [%^%l%$] %v");
-
-    auto file_sink = std::make_shared<spdlog::sinks::basic_file_sink_mt>("logs/multisink.txt", true);
-    file_sink->set_level(spdlog::level::trace);
-
-    spdlog::logger logger("multi_sink", {console_sink, file_sink});
-    logger.set_level(spdlog::level::debug);
-    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<<
-#include "spdlog/fmt/ostr.h" // must be included
-struct my_type
-{
-    int i;
-    template<typename OStream>
-    friend OStream &operator<<(OStream &os, const my_type &c)
-    {
-        return os << "[my_type i=" << c.i << "]";
-    }
-};
-
-void user_defined_example()
-{
-    spdlog::info("user defined type: {}", my_type{14});
-}
-
-// 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) { printf("*** Custom log error handler: %s ***\n", msg.c_str()); });
-}
-
-// syslog example (linux/osx/freebsd)
-#ifndef _WIN32
-#include "spdlog/sinks/syslog_sink.h"
-void syslog_example()
-{
-    std::string ident = "spdlog-example";
-    auto syslog_logger = spdlog::syslog_logger_mt("syslog", ident, LOG_PID);
-    syslog_logger->warn("This is warning that will end up in syslog.");
-}
-#endif
-
-// Android example.
-#if defined(__ANDROID__)
-#include "spdlog/sinks/android_sink.h"
-void android_example()
-{
-    std::string tag = "spdlog-android";
-    auto android_logger = spdlog::android_logger_mt("android", tag);
-    android_logger->critical("Use \"adb shell logcat\" to view this message.");
-}
-
-#endif
+{    
+    auto *l = get_logger();
+    l->info("HELLO");
+}
\ No newline at end of file
diff --git a/include/spdlog/details/logger_impl.h b/include/spdlog/details/logger_impl.h
index d44652b5..80245ba1 100644
--- a/include/spdlog/details/logger_impl.h
+++ b/include/spdlog/details/logger_impl.h
@@ -10,426 +10,426 @@
 #include <memory>
 #include <string>
 
-#define SPDLOG_CATCH_AND_HANDLE                                                                                                            \
-    catch (const std::exception &ex)                                                                                                       \
-    {                                                                                                                                      \
-        err_handler_(ex.what());                                                                                                           \
-    }                                                                                                                                      \
-    catch (...)                                                                                                                            \
-    {                                                                                                                                      \
-        err_handler_("Unknown exception in logger");                                                                                       \
-    }
+//#define SPDLOG_CATCH_AND_HANDLE                                                                                                            \
+//    catch (const std::exception &ex)                                                                                                       \
+//    {                                                                                                                                      \
+//        err_handler_(ex.what());                                                                                                           \
+//    }                                                                                                                                      \
+//    catch (...)                                                                                                                            \
+//    {                                                                                                                                      \
+//        err_handler_("Unknown exception in logger");                                                                                       \
+//    }
 
 // create logger with given name, sinks and the default pattern formatter
 // all other ctors will call this one
-template<typename It>
-inline spdlog::logger::logger(std::string logger_name, It begin, It end)
-    : name_(std::move(logger_name))
-    , sinks_(begin, end)
-{
-}
+//template<typename It>
+//inline spdlog::logger::logger(std::string logger_name, It begin, It end)
+//    : name_(std::move(logger_name))
+//    , sinks_(begin, end)
+//{
+//}
 
-// ctor with sinks as init list
-inline spdlog::logger::logger(std::string logger_name, sinks_init_list sinks_list)
-    : logger(std::move(logger_name), sinks_list.begin(), sinks_list.end())
-{
-}
+//// ctor with sinks as init list
+//inline spdlog::logger::logger(std::string logger_name, sinks_init_list sinks_list)
+//    : logger(std::move(logger_name), sinks_list.begin(), sinks_list.end())
+//{
+//}
 
 // ctor with single sink
-inline spdlog::logger::logger(std::string logger_name, spdlog::sink_ptr single_sink)
-    : logger(std::move(logger_name), {std::move(single_sink)})
-{
-}
+//inline spdlog::logger::logger(std::string logger_name, spdlog::sink_ptr single_sink)
+//    : logger(std::move(logger_name), {std::move(single_sink)})
+//{
+//}
 
-inline spdlog::logger::~logger() = default;
+//inline spdlog::logger::~logger() = default;
 
-inline void spdlog::logger::set_formatter(std::unique_ptr<spdlog::formatter> f)
-{
-    for (auto &sink : sinks_)
-    {
-        sink->set_formatter(f->clone());
-    }
-}
+//inline void spdlog::logger::set_formatter(std::unique_ptr<spdlog::formatter> f)
+//{
+//    for (auto &sink : sinks_)
+//    {
+//        sink->set_formatter(f->clone());
+//    }
+//}
 
-inline void spdlog::logger::set_pattern(std::string pattern, pattern_time_type time_type)
-{
-    auto new_formatter = details::make_unique<spdlog::pattern_formatter>(std::move(pattern), time_type);
-    set_formatter(std::move(new_formatter));
-}
+//inline void spdlog::logger::set_pattern(std::string pattern, pattern_time_type time_type)
+//{
+//    auto new_formatter = details::make_unique<spdlog::pattern_formatter>(std::move(pattern), time_type);
+//    set_formatter(std::move(new_formatter));
+//}
 
-template<typename... Args>
-inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const char *fmt, const Args &... args)
-{
-    if (!should_log(lvl))
-    {
-        return;
-    }
+//template<typename... Args>
+//inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const char *fmt, const Args &... args)
+//{
+//    if (!should_log(lvl))
+//    {
+//        return;
+//    }
+//
+//    try
+//    {
+//        using details::fmt_helper::to_string_view;
+//        fmt::memory_buffer buf;
+//        fmt::format_to(buf, fmt, args...);
+//        details::log_msg log_msg(source, &name_, lvl, to_string_view(buf));
+//        sink_it_(log_msg);
+//    }
+//    SPDLOG_CATCH_AND_HANDLE
+//}
 
-    try
-    {
-        using details::fmt_helper::to_string_view;
-        fmt::memory_buffer buf;
-        fmt::format_to(buf, fmt, args...);
-        details::log_msg log_msg(source, &name_, lvl, to_string_view(buf));
-        sink_it_(log_msg);
-    }
-    SPDLOG_CATCH_AND_HANDLE
-}
+//template<typename... Args>
+//inline void spdlog::logger::log(level::level_enum lvl, const char *fmt, const Args &... args)
+//{
+//    log(source_loc{}, lvl, fmt, args...);
+//}
 
-template<typename... Args>
-inline void spdlog::logger::log(level::level_enum lvl, const char *fmt, const Args &... args)
-{
-    log(source_loc{}, lvl, fmt, args...);
-}
+//inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const char *msg)
+//{
+//    if (!should_log(lvl))
+//    {
+//        return;
+//    }
+//
+//    try
+//    {
+//        details::log_msg log_msg(source, &name_, lvl, spdlog::string_view_t(msg));
+//        sink_it_(log_msg);
+//    }
+//    SPDLOG_CATCH_AND_HANDLE
+//}
 
-inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const char *msg)
-{
-    if (!should_log(lvl))
-    {
-        return;
-    }
+//inline void spdlog::logger::log(level::level_enum lvl, const char *msg)
+//{
+//    log(source_loc{}, lvl, msg);
+//}
 
-    try
-    {
-        details::log_msg log_msg(source, &name_, lvl, spdlog::string_view_t(msg));
-        sink_it_(log_msg);
-    }
-    SPDLOG_CATCH_AND_HANDLE
-}
+//template<class T>
+//inline void spdlog::logger::log(level::level_enum lvl, const T &msg)
+//{
+//    log(source_loc{}, lvl, msg);
+//}
+//
+//template<class T, typename std::enable_if<std::is_convertible<T, spdlog::string_view_t>::value, T>::type *>
+//inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const T &msg)
+//{
+//    if (!should_log(lvl))
+//    {
+//        return;
+//    }
+//    try
+//    {
+//        details::log_msg log_msg(source, &name_, lvl, msg);
+//        sink_it_(log_msg);
+//    }
+//    SPDLOG_CATCH_AND_HANDLE
+//}
 
-inline void spdlog::logger::log(level::level_enum lvl, const char *msg)
-{
-    log(source_loc{}, lvl, msg);
-}
+//template<class T, typename std::enable_if<!std::is_convertible<T, spdlog::string_view_t>::value, T>::type *>
+//inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const T &msg)
+//{
+//    if (!should_log(lvl))
+//    {
+//        return;
+//    }
+//    try
+//    {
+//        using details::fmt_helper::to_string_view;
+//        fmt::memory_buffer buf;
+//        fmt::format_to(buf, "{}", msg);
+//        details::log_msg log_msg(source, &name_, lvl, to_string_view(buf));
+//        sink_it_(log_msg);
+//    }
+//    SPDLOG_CATCH_AND_HANDLE
+//}
 
-template<class T>
-inline void spdlog::logger::log(level::level_enum lvl, const T &msg)
-{
-    log(source_loc{}, lvl, msg);
-}
+//template<typename... Args>
+//inline void spdlog::logger::trace(const char *fmt, const Args &... args)
+//{
+//    log(level::trace, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::debug(const char *fmt, const Args &... args)
+//{
+//    log(level::debug, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::info(const char *fmt, const Args &... args)
+//{
+//    log(level::info, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::warn(const char *fmt, const Args &... args)
+//{
+//    log(level::warn, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::error(const char *fmt, const Args &... args)
+//{
+//    log(level::err, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::critical(const char *fmt, const Args &... args)
+//{
+//    log(level::critical, fmt, args...);
+//}
+//
+//template<typename T>
+//inline void spdlog::logger::trace(const T &msg)
+//{
+//    log(level::trace, msg);
+//}
+//
+//template<typename T>
+//inline void spdlog::logger::debug(const T &msg)
+//{
+//    log(level::debug, msg);
+//}
+//
+//template<typename T>
+//inline void spdlog::logger::info(const T &msg)
+//{
+//    log(level::info, msg);
+//}
+//
+//template<typename T>
+//inline void spdlog::logger::warn(const T &msg)
+//{
+//    log(level::warn, msg);
+//}
+//
+//template<typename T>
+//inline void spdlog::logger::error(const T &msg)
+//{
+//    log(level::err, msg);
+//}
+//
+//template<typename T>
+//inline void spdlog::logger::critical(const T &msg)
+//{
+//    log(level::critical, msg);
+//}
 
-template<class T, typename std::enable_if<std::is_convertible<T, spdlog::string_view_t>::value, T>::type *>
-inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const T &msg)
-{
-    if (!should_log(lvl))
-    {
-        return;
-    }
-    try
-    {
-        details::log_msg log_msg(source, &name_, lvl, msg);
-        sink_it_(log_msg);
-    }
-    SPDLOG_CATCH_AND_HANDLE
-}
+//#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
 
-template<class T, typename std::enable_if<!std::is_convertible<T, spdlog::string_view_t>::value, T>::type *>
-inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const T &msg)
-{
-    if (!should_log(lvl))
-    {
-        return;
-    }
-    try
-    {
-        using details::fmt_helper::to_string_view;
-        fmt::memory_buffer buf;
-        fmt::format_to(buf, "{}", msg);
-        details::log_msg log_msg(source, &name_, lvl, to_string_view(buf));
-        sink_it_(log_msg);
-    }
-    SPDLOG_CATCH_AND_HANDLE
-}
+//inline void wbuf_to_utf8buf(const fmt::wmemory_buffer &wbuf, fmt::memory_buffer &target)
+//{
+//    int wbuf_size = static_cast<int>(wbuf.size());
+//    if (wbuf_size == 0)
+//    {
+//        return;
+//    }
+//
+//    auto result_size = ::WideCharToMultiByte(CP_UTF8, 0, wbuf.data(), wbuf_size, NULL, 0, NULL, NULL);
+//
+//    if (result_size > 0)
+//    {
+//        target.resize(result_size);
+//        ::WideCharToMultiByte(CP_UTF8, 0, wbuf.data(), wbuf_size, &target.data()[0], result_size, NULL, NULL);
+//    }
+//    else
+//    {
+//        throw spdlog::spdlog_ex(fmt::format("WideCharToMultiByte failed. Last error: {}", ::GetLastError()));
+//    }
+//}
 
-template<typename... Args>
-inline void spdlog::logger::trace(const char *fmt, const Args &... args)
-{
-    log(level::trace, fmt, args...);
-}
+//template<typename... Args>
+//inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const wchar_t *fmt, const Args &... args)
+//{
+//    if (!should_log(lvl))
+//    {
+//        return;
+//    }
+//
+//    try
+//    {
+//        // format to wmemory_buffer and convert to utf8
+//        using details::fmt_helper::to_string_view;
+//        fmt::wmemory_buffer wbuf;
+//        fmt::format_to(wbuf, fmt, args...);
+//        fmt::memory_buffer buf;
+//        wbuf_to_utf8buf(wbuf, buf);
+//        details::log_msg log_msg(source, &name_, lvl, to_string_view(buf));
+//        sink_it_(log_msg);
+//    }
+//    SPDLOG_CATCH_AND_HANDLE
+//}
 
-template<typename... Args>
-inline void spdlog::logger::debug(const char *fmt, const Args &... args)
-{
-    log(level::debug, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::info(const char *fmt, const Args &... args)
-{
-    log(level::info, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::warn(const char *fmt, const Args &... args)
-{
-    log(level::warn, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::error(const char *fmt, const Args &... args)
-{
-    log(level::err, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::critical(const char *fmt, const Args &... args)
-{
-    log(level::critical, fmt, args...);
-}
-
-template<typename T>
-inline void spdlog::logger::trace(const T &msg)
-{
-    log(level::trace, msg);
-}
-
-template<typename T>
-inline void spdlog::logger::debug(const T &msg)
-{
-    log(level::debug, msg);
-}
-
-template<typename T>
-inline void spdlog::logger::info(const T &msg)
-{
-    log(level::info, msg);
-}
-
-template<typename T>
-inline void spdlog::logger::warn(const T &msg)
-{
-    log(level::warn, msg);
-}
-
-template<typename T>
-inline void spdlog::logger::error(const T &msg)
-{
-    log(level::err, msg);
-}
-
-template<typename T>
-inline void spdlog::logger::critical(const T &msg)
-{
-    log(level::critical, msg);
-}
-
-#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
-
-inline void wbuf_to_utf8buf(const fmt::wmemory_buffer &wbuf, fmt::memory_buffer &target)
-{
-    int wbuf_size = static_cast<int>(wbuf.size());
-    if (wbuf_size == 0)
-    {
-        return;
-    }
-
-    auto result_size = ::WideCharToMultiByte(CP_UTF8, 0, wbuf.data(), wbuf_size, NULL, 0, NULL, NULL);
-
-    if (result_size > 0)
-    {
-        target.resize(result_size);
-        ::WideCharToMultiByte(CP_UTF8, 0, wbuf.data(), wbuf_size, &target.data()[0], result_size, NULL, NULL);
-    }
-    else
-    {
-        throw spdlog::spdlog_ex(fmt::format("WideCharToMultiByte failed. Last error: {}", ::GetLastError()));
-    }
-}
-
-template<typename... Args>
-inline void spdlog::logger::log(source_loc source, level::level_enum lvl, const wchar_t *fmt, const Args &... args)
-{
-    if (!should_log(lvl))
-    {
-        return;
-    }
-
-    try
-    {
-        // format to wmemory_buffer and convert to utf8
-        using details::fmt_helper::to_string_view;
-        fmt::wmemory_buffer wbuf;
-        fmt::format_to(wbuf, fmt, args...);
-        fmt::memory_buffer buf;
-        wbuf_to_utf8buf(wbuf, buf);
-        details::log_msg log_msg(source, &name_, lvl, to_string_view(buf));
-        sink_it_(log_msg);
-    }
-    SPDLOG_CATCH_AND_HANDLE
-}
-
-template<typename... Args>
-inline void spdlog::logger::log(level::level_enum lvl, const wchar_t *fmt, const Args &... args)
-{
-    log(source_loc{}, lvl, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::trace(const wchar_t *fmt, const Args &... args)
-{
-    log(level::trace, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::debug(const wchar_t *fmt, const Args &... args)
-{
-    log(level::debug, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::info(const wchar_t *fmt, const Args &... args)
-{
-    log(level::info, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::warn(const wchar_t *fmt, const Args &... args)
-{
-    log(level::warn, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::error(const wchar_t *fmt, const Args &... args)
-{
-    log(level::err, fmt, args...);
-}
-
-template<typename... Args>
-inline void spdlog::logger::critical(const wchar_t *fmt, const Args &... args)
-{
-    log(level::critical, fmt, args...);
-}
-
-#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
+//template<typename... Args>
+//inline void spdlog::logger::log(level::level_enum lvl, const wchar_t *fmt, const Args &... args)
+//{
+//    log(source_loc{}, lvl, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::trace(const wchar_t *fmt, const Args &... args)
+//{
+//    log(level::trace, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::debug(const wchar_t *fmt, const Args &... args)
+//{
+//    log(level::debug, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::info(const wchar_t *fmt, const Args &... args)
+//{
+//    log(level::info, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::warn(const wchar_t *fmt, const Args &... args)
+//{
+//    log(level::warn, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::error(const wchar_t *fmt, const Args &... args)
+//{
+//    log(level::err, fmt, args...);
+//}
+//
+//template<typename... Args>
+//inline void spdlog::logger::critical(const wchar_t *fmt, const Args &... args)
+//{
+//    log(level::critical, fmt, args...);
+//}
+//
+//#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
 
 //
 // name and level
 //
-inline const std::string &spdlog::logger::name() const
-{
-    return name_;
-}
+//inline const std::string &spdlog::logger::name() const
+//{
+//    return name_;
+//}
 
-inline void spdlog::logger::set_level(spdlog::level::level_enum log_level)
-{
-    level_.store(log_level);
-}
+//inline void spdlog::logger::set_level(spdlog::level::level_enum log_level)
+//{
+//    level_.store(log_level);
+//}
 
-inline void spdlog::logger::set_error_handler(spdlog::log_err_handler err_handler)
-{
-    err_handler_ = std::move(err_handler);
-}
+//inline void spdlog::logger::set_error_handler(spdlog::log_err_handler err_handler)
+//{
+//    err_handler_ = std::move(err_handler);
+//}
 
-inline spdlog::log_err_handler spdlog::logger::error_handler() const
-{
-    return err_handler_;
-}
+//inline spdlog::log_err_handler spdlog::logger::error_handler() const
+//{
+//    return err_handler_;
+//}
 
-inline void spdlog::logger::flush()
-{
-    try
-    {
-        flush_();
-    }
-    SPDLOG_CATCH_AND_HANDLE
-}
+//inline void spdlog::logger::flush()
+//{
+//    try
+//    {
+//        flush_();
+//    }
+//    SPDLOG_CATCH_AND_HANDLE
+//}
 
-inline void spdlog::logger::flush_on(level::level_enum log_level)
-{
-    flush_level_.store(log_level);
-}
+//inline void spdlog::logger::flush_on(level::level_enum log_level)
+//{
+//    flush_level_.store(log_level);
+//}
+//
+//inline spdlog::level::level_enum spdlog::logger::flush_level() const
+//{
+//    return static_cast<spdlog::level::level_enum>(flush_level_.load(std::memory_order_relaxed));
+//}
+//
+//inline bool spdlog::logger::should_flush_(const details::log_msg &msg)
+//{
+//    auto flush_level = flush_level_.load(std::memory_order_relaxed);
+//    return (msg.level >= flush_level) && (msg.level != level::off);
+//}
 
-inline spdlog::level::level_enum spdlog::logger::flush_level() const
-{
-    return static_cast<spdlog::level::level_enum>(flush_level_.load(std::memory_order_relaxed));
-}
+//inline spdlog::level::level_enum spdlog::logger::default_level()
+//{
+//    return static_cast<spdlog::level::level_enum>(SPDLOG_ACTIVE_LEVEL);
+//}
 
-inline bool spdlog::logger::should_flush_(const details::log_msg &msg)
-{
-    auto flush_level = flush_level_.load(std::memory_order_relaxed);
-    return (msg.level >= flush_level) && (msg.level != level::off);
-}
+//inline spdlog::level::level_enum spdlog::logger::level() const
+//{
+//    return static_cast<spdlog::level::level_enum>(level_.load(std::memory_order_relaxed));
+//}
 
-inline spdlog::level::level_enum spdlog::logger::default_level()
-{
-    return static_cast<spdlog::level::level_enum>(SPDLOG_ACTIVE_LEVEL);
-}
-
-inline spdlog::level::level_enum spdlog::logger::level() const
-{
-    return static_cast<spdlog::level::level_enum>(level_.load(std::memory_order_relaxed));
-}
-
-inline bool spdlog::logger::should_log(spdlog::level::level_enum msg_level) const
-{
-    return msg_level >= level_.load(std::memory_order_relaxed);
-}
+//inline bool spdlog::logger::should_log(spdlog::level::level_enum msg_level) const
+//{
+//    return msg_level >= level_.load(std::memory_order_relaxed);
+//}
 
 //
 // protected virtual called at end of each user log call (if enabled) by the
 // line_logger
 //
-inline void spdlog::logger::sink_it_(details::log_msg &msg)
-{
-#if defined(SPDLOG_ENABLE_MESSAGE_COUNTER)
-    incr_msg_counter_(msg);
-#endif
-    for (auto &sink : sinks_)
-    {
-        if (sink->should_log(msg.level))
-        {
-            sink->log(msg);
-        }
-    }
+//inline void spdlog::logger::sink_it_(details::log_msg &msg)
+//{
+//#if defined(SPDLOG_ENABLE_MESSAGE_COUNTER)
+//    incr_msg_counter_(msg);
+//#endif
+//    for (auto &sink : sinks_)
+//    {
+//        if (sink->should_log(msg.level))
+//        {
+//            sink->log(msg);
+//        }
+//    }
+//
+//    if (should_flush_(msg))
+//    {
+//        flush_();
+//    }
+//}
 
-    if (should_flush_(msg))
-    {
-        flush_();
-    }
-}
+//inline void spdlog::logger::flush_()
+//{
+//    for (auto &sink : sinks_)
+//    {
+//        sink->flush();
+//    }
+//}
 
-inline void spdlog::logger::flush_()
-{
-    for (auto &sink : sinks_)
-    {
-        sink->flush();
-    }
-}
+//inline void spdlog::logger::default_err_handler_(const std::string &msg)
+//{
+//    auto now = time(nullptr);
+//    if (now - last_err_time_ < 60)
+//    {
+//        return;
+//    }
+//    last_err_time_ = now;
+//    auto tm_time = details::os::localtime(now);
+//    char date_buf[100];
+//    std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
+//    fmt::print(stderr, "[*** LOG ERROR ***] [{}] [{}] {}\n", date_buf, name(), msg);
+//}
 
-inline void spdlog::logger::default_err_handler_(const std::string &msg)
-{
-    auto now = time(nullptr);
-    if (now - last_err_time_ < 60)
-    {
-        return;
-    }
-    last_err_time_ = now;
-    auto tm_time = details::os::localtime(now);
-    char date_buf[100];
-    std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
-    fmt::print(stderr, "[*** LOG ERROR ***] [{}] [{}] {}\n", date_buf, name(), msg);
-}
+//inline void spdlog::logger::incr_msg_counter_(details::log_msg &msg)
+//{
+//    msg.msg_id = msg_counter_.fetch_add(1, std::memory_order_relaxed);
+//}
+//
+//inline const std::vector<spdlog::sink_ptr> &spdlog::logger::sinks() const
+//{
+//    return sinks_;
+//}
 
-inline void spdlog::logger::incr_msg_counter_(details::log_msg &msg)
-{
-    msg.msg_id = msg_counter_.fetch_add(1, std::memory_order_relaxed);
-}
+//inline std::vector<spdlog::sink_ptr> &spdlog::logger::sinks()
+//{
+//    return sinks_;
+//}
 
-inline const std::vector<spdlog::sink_ptr> &spdlog::logger::sinks() const
-{
-    return sinks_;
-}
-
-inline std::vector<spdlog::sink_ptr> &spdlog::logger::sinks()
-{
-    return sinks_;
-}
-
-inline std::shared_ptr<spdlog::logger> spdlog::logger::clone(std::string logger_name)
-{
-    auto cloned = std::make_shared<spdlog::logger>(std::move(logger_name), sinks_.begin(), sinks_.end());
-    cloned->set_level(this->level());
-    cloned->flush_on(this->flush_level());
-    cloned->set_error_handler(this->error_handler());
-    return cloned;
-}
+//inline std::shared_ptr<spdlog::logger> spdlog::logger::clone(std::string logger_name)
+//{
+//    auto cloned = std::make_shared<spdlog::logger>(std::move(logger_name), sinks_.begin(), sinks_.end());
+//    cloned->set_level(this->level());
+//    cloned->flush_on(this->flush_level());
+//    cloned->set_error_handler(this->error_handler());
+//    return cloned;
+//}
diff --git a/include/spdlog/logger.h b/include/spdlog/logger.h
index ec06828f..446a5076 100644
--- a/include/spdlog/logger.h
+++ b/include/spdlog/logger.h
@@ -21,154 +21,455 @@
 #include "spdlog/common.h"
 #include "spdlog/formatter.h"
 #include "spdlog/sinks/sink.h"
+#include "spdlog/details/fmt_helper.h"
 
 #include <memory>
 #include <string>
 #include <vector>
 
+#ifndef SPDLOG_CATCH_AND_HANDLE
+
+#define SPDLOG_CATCH_AND_HANDLE                                                                                                            \
+    catch (const std::exception &ex)                                                                                                       \
+    {                                                                                                                                      \
+        err_handler_(ex.what());                                                                                                           \
+    }                                                                                                                                      \
+    catch (...)                                                                                                                            \
+    {                                                                                                                                      \
+        err_handler_("Unknown exception in logger");                                                                                       \
+    }
+
+#endif // ! SPDLOG_CATCH_AND_HANDLE
+
+
 namespace spdlog {
 
 class logger
 {
 public:
-    logger(std::string name, sink_ptr single_sink);
-    logger(std::string name, sinks_init_list sinks);
-
+    
     template<typename It>
-    logger(std::string name, It begin, It end);
+    logger(std::string name, It begin, It end)
+        : name_(std::move(name))
+        , sinks_(begin, end)
+    {}
 
-    virtual ~logger();
+	logger(std::string name, sink_ptr single_sink)
+        : logger(std::move(name), {std::move(single_sink)})
+    {}
+    logger(std::string name, sinks_init_list sinks) : 
+		logger(std::move(name), sinks.begin(), sinks.end())
+	{}
+
+    virtual ~logger() = default;
 
     logger(const logger &) = delete;
     logger &operator=(const logger &) = delete;
 
-    template<typename... Args>
-    void log(level::level_enum lvl, const char *fmt, const Args &... args);
+	template<typename... Args>
+    void log(source_loc loc, level::level_enum lvl, const char *fmt, const Args &... args)
+	{
+        if (!should_log(lvl))
+        {
+            return;
+        }
+
+        try
+        {
+            using details::fmt_helper::to_string_view;
+            fmt::memory_buffer buf;
+            fmt::format_to(buf, fmt, args...);
+            details::log_msg log_msg(loc, &name_, lvl, to_string_view(buf));
+            sink_it_(log_msg);
+        }
+        SPDLOG_CATCH_AND_HANDLE
+	}
 
     template<typename... Args>
-    void log(source_loc loc, level::level_enum lvl, const char *fmt, const Args &... args);
+	void log(level::level_enum lvl, const char *fmt, const Args &... args)
+	{
+        log(source_loc{}, lvl, fmt, args...);
+	}
 
-    void log(level::level_enum lvl, const char *msg);
+   
+	void log(source_loc loc, level::level_enum lvl, const char *msg)
+    {
+        if (!should_log(lvl))
+        {
+            return;
+        }
 
-    void log(source_loc loc, level::level_enum lvl, const char *msg);
+        try
+        {
+            details::log_msg log_msg(loc, &name_, lvl, spdlog::string_view_t(msg));
+            sink_it_(log_msg);
+        }
+        SPDLOG_CATCH_AND_HANDLE
+    }
+
+    void log(level::level_enum lvl, const char *msg)
+    {
+        log(source_loc{}, lvl, msg);
+    }
+
+    
 
     template<typename... Args>
-    void trace(const char *fmt, const Args &... args);
+    void trace(const char *fmt, const Args &... args)
+    {
+        log(level::trace, fmt, args...);
+    }
+
 
     template<typename... Args>
-    void debug(const char *fmt, const Args &... args);
+    void debug(const char *fmt, const Args &... args)
+    {
+        log(level::debug, fmt, args...);
+    }
+
 
     template<typename... Args>
-    void info(const char *fmt, const Args &... args);
+    void info(const char *fmt, const Args &... args)
+    {
+        log(level::info, fmt, args...);
+    }
 
     template<typename... Args>
-    void warn(const char *fmt, const Args &... args);
+    void warn(const char *fmt, const Args &... args)
+    {
+        log(level::warn, fmt, args...);
+    }
 
     template<typename... Args>
-    void error(const char *fmt, const Args &... args);
+    void error(const char *fmt, const Args &... args)
+    {
+        log(level::err, fmt, args...);
+    }
 
     template<typename... Args>
-    void critical(const char *fmt, const Args &... args);
+    void critical(const char *fmt, const Args &... args)
+    {
+        log(level::critical, fmt, args...);
+    }
+
 
 #ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
 #ifndef _WIN32
 #error SPDLOG_WCHAR_TO_UTF8_SUPPORT only supported on windows
 #else
-    template<typename... Args>
-    void log(level::level_enum lvl, const wchar_t *fmt, const Args &... args);
+    inline void wbuf_to_utf8buf(const fmt::wmemory_buffer &wbuf, fmt::memory_buffer &target)
+    {
+        int wbuf_size = static_cast<int>(wbuf.size());
+        if (wbuf_size == 0)
+        {
+            return;
+        }
+
+        auto result_size = ::WideCharToMultiByte(CP_UTF8, 0, wbuf.data(), wbuf_size, NULL, 0, NULL, NULL);
+
+        if (result_size > 0)
+        {
+            target.resize(result_size);
+            ::WideCharToMultiByte(CP_UTF8, 0, wbuf.data(), wbuf_size, &target.data()[0], result_size, NULL, NULL);
+        }
+        else
+        {
+            throw spdlog::spdlog_ex(fmt::format("WideCharToMultiByte failed. Last error: {}", ::GetLastError()));
+        }
+    }
+
+	template<typename... Args>
+    void log(source_loc source, level::level_enum lvl, const wchar_t *fmt, const Args &... args)
+    {
+        if (!should_log(lvl))
+        {
+            return;
+        }
+
+        try
+        {
+            // format to wmemory_buffer and convert to utf8
+            using details::fmt_helper::to_string_view;
+            fmt::wmemory_buffer wbuf;
+            fmt::format_to(wbuf, fmt, args...);
+            fmt::memory_buffer buf;
+            wbuf_to_utf8buf(wbuf, buf);
+            details::log_msg log_msg(source, &name_, lvl, to_string_view(buf));
+            sink_it_(log_msg);
+        }
+        SPDLOG_CATCH_AND_HANDLE
+    }
 
     template<typename... Args>
-    void log(source_loc source, level::level_enum lvl, const wchar_t *fmt, const Args &... args);
+    void log(level::level_enum lvl, const wchar_t *fmt, const Args &... args)
+    {
+        log(source_loc{}, lvl, fmt, args...);
+    }
+  
+    template<typename... Args>
+    void trace(const wchar_t *fmt, const Args &... args)
+    {
+        log(level::trace, fmt, args...);
+    }
 
     template<typename... Args>
-    void trace(const wchar_t *fmt, const Args &... args);
+    void debug(const wchar_t *fmt, const Args &... args)
+    {
+        log(level::debug, fmt, args...);
+    }
 
     template<typename... Args>
-    void debug(const wchar_t *fmt, const Args &... args);
+    void info(const wchar_t *fmt, const Args &... args)
+    {
+        log(level::info, fmt, args...);
+    }
 
     template<typename... Args>
-    void info(const wchar_t *fmt, const Args &... args);
+    void warn(const wchar_t *fmt, const Args &... args)
+    {
+        log(level::warn, fmt, args...);
+    }
 
     template<typename... Args>
-    void warn(const wchar_t *fmt, const Args &... args);
+    void error(const wchar_t *fmt, const Args &... args)
+    {
+        log(level::err, fmt, args...);
+    }
 
     template<typename... Args>
-    void error(const wchar_t *fmt, const Args &... args);
-
-    template<typename... Args>
-    void critical(const wchar_t *fmt, const Args &... args);
+    void critical(const wchar_t *fmt, const Args &... args)
+    {
+        log(level::critical, fmt, args...);
+    }
 #endif // _WIN32
 #endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
 
-    template<class T>
-    void log(level::level_enum lvl, const T &);
+    template<typename T>
+    void log(level::level_enum lvl, const T &msg)
+    {
+        log(source_loc{}, lvl, msg);
+    }
 
     // T can be statically converted to string_view
     template<class T, typename std::enable_if<std::is_convertible<T, spdlog::string_view_t>::value, T>::type * = nullptr>
-    void log(source_loc loc, level::level_enum lvl, const T &);
+    void log(source_loc loc, level::level_enum lvl, const T &msg)
+    {
+        if (!should_log(lvl))
+        {
+            return;
+        }
+        try
+        {
+            details::log_msg log_msg(loc, &name_, lvl, msg);
+            sink_it_(log_msg);
+        }
+        SPDLOG_CATCH_AND_HANDLE
+    }
 
     // T cannot be statically converted to string_view
     template<class T, typename std::enable_if<!std::is_convertible<T, spdlog::string_view_t>::value, T>::type * = nullptr>
-    void log(source_loc loc, level::level_enum lvl, const T &);
+    void log(source_loc loc, level::level_enum lvl, const T &msg)
+    {
+        if (!should_log(lvl))
+        {
+            return;
+        }
+        try
+        {
+            using details::fmt_helper::to_string_view;
+            fmt::memory_buffer buf;
+            fmt::format_to(buf, "{}", msg);
+            details::log_msg log_msg(loc, &name_, lvl, to_string_view(buf));
+            sink_it_(log_msg);
+        }
+        SPDLOG_CATCH_AND_HANDLE
+    }
 
     template<typename T>
-    void trace(const T &msg);
+    void trace(const T &msg)
+    {
+        log(level::trace, msg);
+    }
 
     template<typename T>
-    void debug(const T &msg);
+    void debug(const T &msg)
+    {
+        log(level::debug, msg);
+    }
 
     template<typename T>
-    void info(const T &msg);
+    void info(const T &msg)
+    {
+        log(level::info, msg);
+    }
 
     template<typename T>
-    void warn(const T &msg);
+    void warn(const T &msg)
+    {
+        log(level::warn, msg);
+    }
 
     template<typename T>
-    void error(const T &msg);
+    void error(const T &msg)
+    {
+        log(level::err, msg);
+    }
 
     template<typename T>
-    void critical(const T &msg);
+    void critical(const T &msg)
+    {
+        log(level::critical, msg);
+    }
 
-    bool should_log(level::level_enum msg_level) const;
-    void set_level(level::level_enum log_level);
+    bool should_log(level::level_enum msg_level) const
+    {
+        return msg_level >= level_.load(std::memory_order_relaxed);
+    }
 
-    static level::level_enum default_level();
-    level::level_enum level() const;
-    const std::string &name() const;
+    void set_level(level::level_enum log_level)
+    {
+        level_.store(log_level);
+    }
+
+    static level::level_enum default_level()
+    {
+        return static_cast<spdlog::level::level_enum>(SPDLOG_ACTIVE_LEVEL);
+    }
+
+    level::level_enum level() const
+    {
+        return static_cast<spdlog::level::level_enum>(level_.load(std::memory_order_relaxed));
+    }
+
+    const std::string &name() const
+    {
+        return name_;
+    }
 
     // set formatting for the sinks in this logger.
     // each sink will get a seperate instance of the formatter object.
-    void set_formatter(std::unique_ptr<formatter> formatter);
-    void set_pattern(std::string pattern, pattern_time_type time_type = pattern_time_type::local);
+    void set_formatter(std::unique_ptr<formatter> f)
+    {
+        for (auto &sink : sinks_)
+        {
+            sink->set_formatter(f->clone());
+        }
+    }
+
+    void set_pattern(std::string pattern, pattern_time_type time_type = pattern_time_type::local)
+    {
+        auto new_formatter = details::make_unique<spdlog::pattern_formatter>(std::move(pattern), time_type);
+        set_formatter(std::move(new_formatter));
+    }
 
     // flush functions
-    void flush();
-    void flush_on(level::level_enum log_level);
-    level::level_enum flush_level() const;
+    void flush()
+    {
+        try
+        {
+            flush_();
+        }
+        SPDLOG_CATCH_AND_HANDLE
+    }
+
+    void flush_on(level::level_enum log_level)
+    {
+        flush_level_.store(log_level);
+    }
+
+    level::level_enum flush_level() const
+    {
+        return static_cast<spdlog::level::level_enum>(flush_level_.load(std::memory_order_relaxed));
+    }
 
     // sinks
-    const std::vector<sink_ptr> &sinks() const;
-    std::vector<sink_ptr> &sinks();
+    const std::vector<sink_ptr> &sinks() const
+    {
+        return sinks_;
+    }
+
+    std::vector<sink_ptr> &sinks()
+    {
+        return sinks_;
+    }
 
     // error handler
-    void set_error_handler(log_err_handler err_handler);
-    log_err_handler error_handler() const;
+    void set_error_handler(log_err_handler err_handler)
+    {
+        err_handler_ = std::move(err_handler);
+    }
+
+    log_err_handler error_handler() const
+    {
+        return err_handler_;
+    }
 
     // create new logger with same sinks and configuration.
-    virtual std::shared_ptr<logger> clone(std::string logger_name);
+    virtual std::shared_ptr<logger> clone(std::string logger_name)
+    {
+        auto cloned = std::make_shared<spdlog::logger>(std::move(logger_name), sinks_.begin(), sinks_.end());
+        cloned->set_level(this->level());
+        cloned->flush_on(this->flush_level());
+        cloned->set_error_handler(this->error_handler());
+        return cloned;
+    }
+
 
 protected:
-    virtual void sink_it_(details::log_msg &msg);
-    virtual void flush_();
+    virtual void sink_it_(details::log_msg &msg)
+    {
+#if defined(SPDLOG_ENABLE_MESSAGE_COUNTER)
+        incr_msg_counter_(msg);
+#endif
+        for (auto &sink : sinks_)
+        {
+            if (sink->should_log(msg.level))
+            {
+                sink->log(msg);
+            }
+        }
 
-    bool should_flush_(const details::log_msg &msg);
+        if (should_flush_(msg))
+        {
+            flush_();
+        }
+    }
+
+    virtual void flush_()
+    {
+        for (auto &sink : sinks_)
+        {
+            sink->flush();
+        }
+    }
+
+    bool should_flush_(const details::log_msg &msg)
+    {
+        auto flush_level = flush_level_.load(std::memory_order_relaxed);
+        return (msg.level >= flush_level) && (msg.level != level::off);
+    }
 
     // default error handler.
     // print the error to stderr with the max rate of 1 message/minute.
-    void default_err_handler_(const std::string &msg);
+    void default_err_handler_(const std::string &msg)
+    {
+        auto now = time(nullptr);
+        if (now - last_err_time_ < 60)
+        {
+            return;
+        }
+        last_err_time_ = now;
+        auto tm_time = details::os::localtime(now);
+        char date_buf[100];
+        std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
+        fmt::print(stderr, "[*** LOG ERROR ***] [{}] [{}] {}\n", date_buf, name(), msg);
+    }
 
     // increment the message count (only if defined(SPDLOG_ENABLE_MESSAGE_COUNTER))
-    void incr_msg_counter_(details::log_msg &msg);
+    void incr_msg_counter_(details::log_msg &msg)
+    {
+        msg.msg_id = msg_counter_.fetch_add(1, std::memory_order_relaxed);
+    }
 
     const std::string name_;
     std::vector<sink_ptr> sinks_;
@@ -180,4 +481,3 @@ protected:
 };
 } // namespace spdlog
 
-#include "details/logger_impl.h"