From a5a39c52b05647266facf41961e9270212b4ad44 Mon Sep 17 00:00:00 2001
From: gabime <gmelman1@gmail.com>
Date: Fri, 19 Oct 2018 02:45:35 +0300
Subject: [PATCH] Added nullptr check to append_string_view

---
 include/spdlog/details/fmt_helper.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/spdlog/details/fmt_helper.h b/include/spdlog/details/fmt_helper.h
index 0e606518..4de48899 100644
--- a/include/spdlog/details/fmt_helper.h
+++ b/include/spdlog/details/fmt_helper.h
@@ -24,7 +24,10 @@ template<size_t Buffer_Size>
 inline void append_string_view(fmt::string_view view, fmt::basic_memory_buffer<char, Buffer_Size> &dest)
 {
     auto *buf_ptr = view.data();
-    dest.append(buf_ptr, buf_ptr + view.size());
+    if(buf_ptr != nullptr)
+    {
+        dest.append(buf_ptr, buf_ptr + view.size());
+    }
 }
 
 template<typename T, size_t Buffer_Size>