From a1d292027a299c49fc48b634b80e6afd64962a18 Mon Sep 17 00:00:00 2001
From: arossert <arossert@paypal.com>
Date: Mon, 24 Jul 2017 10:09:43 +0300
Subject: [PATCH] Add another "tweak" to enable `printf` formatting

---
 include/spdlog/details/logger_impl.h |  6 +++++-
 include/spdlog/tweakme.h             | 12 +++++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/include/spdlog/details/logger_impl.h b/include/spdlog/details/logger_impl.h
index 79c4ef69..763173c7 100644
--- a/include/spdlog/details/logger_impl.h
+++ b/include/spdlog/details/logger_impl.h
@@ -67,7 +67,11 @@ inline void spdlog::logger::log(level::level_enum lvl, const char* fmt, const Ar
     try
     {
         details::log_msg log_msg(&_name, lvl);
-        log_msg.raw.write(fmt, args...);
+#ifdef SPDLOG_PRINTF_FORMATTING
+		log_msg.raw << fmt::sprintf(fmt, args...);
+#else
+		log_msg.raw.write(fmt, args...);
+#endif
         _sink_it(log_msg);
     }
     catch (const std::exception &ex)
diff --git a/include/spdlog/tweakme.h b/include/spdlog/tweakme.h
index 53f5cf7e..003484de 100644
--- a/include/spdlog/tweakme.h
+++ b/include/spdlog/tweakme.h
@@ -138,4 +138,14 @@
 //
 // #define SPDLOG_LEVEL_NAMES  { "   TRACE", "   DEBUG", "    INFO",
 // " WARNING", "   ERROR", "CRITICAL", "OFF" };
-///////////////////////////////////////////////////////////////////////////////
\ No newline at end of file
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to use printf formatting:
+// logger->log("Message %d: Hello %s", 1, "world")
+//
+// Otherwise use the python formatting:
+// logger->log("Message {}: Hello {}", 1, "world")
+//
+// #define SPDLOG_PRINTF_FORMATTING
+///////////////////////////////////////////////////////////////////////////////