From f25f0e0e40fa6888d6ae655277797932b4ce6d2a Mon Sep 17 00:00:00 2001
From: Sam Lunt <sam.lunt@transmarketgroup.com>
Date: Mon, 16 Oct 2017 13:32:16 -0500
Subject: [PATCH] add (void)0 when logging is disabled

---
 include/spdlog/spdlog.h | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/include/spdlog/spdlog.h b/include/spdlog/spdlog.h
index 6907086b..1e732659 100644
--- a/include/spdlog/spdlog.h
+++ b/include/spdlog/spdlog.h
@@ -165,24 +165,23 @@ void drop_all();
 ///////////////////////////////////////////////////////////////////////////////
 
 #ifdef SPDLOG_TRACE_ON
-#define SPDLOG_STR_H(x) #x
-#define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x)
-#ifdef _MSC_VER
-#define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__)
+#  define SPDLOG_STR_H(x) #x
+#  define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x)
+#  ifdef _MSC_VER
+#    define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__)
+#  else
+#    define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ] " __VA_ARGS__)
+#  endif
 #else
-#define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ] " __VA_ARGS__)
-#endif
-#else
-#define SPDLOG_TRACE(logger, ...)
+#  define SPDLOG_TRACE(logger, ...) (void)0
 #endif
 
 #ifdef SPDLOG_DEBUG_ON
-#define SPDLOG_DEBUG(logger, ...) logger->debug(__VA_ARGS__)
+#  define SPDLOG_DEBUG(logger, ...) logger->debug(__VA_ARGS__)
 #else
-#define SPDLOG_DEBUG(logger, ...)
+#  define SPDLOG_DEBUG(logger, ...) (void)0
 #endif
 
 }
 
-
 #include "details/spdlog_impl.h"