From bd511a4bd1381c620ca77fd42cd4b58748acc0fa Mon Sep 17 00:00:00 2001
From: Takatoshi Kondo <redboltz@gmail.com>
Date: Mon, 12 Jun 2017 15:14:37 +0900
Subject: [PATCH] Fixed nonnull warnings on gcc 7.1.

---
 include/msgpack/v1/adaptor/cpp11/array_char.hpp          | 7 +++++++
 include/msgpack/v1/adaptor/cpp11/array_unsigned_char.hpp | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/include/msgpack/v1/adaptor/cpp11/array_char.hpp b/include/msgpack/v1/adaptor/cpp11/array_char.hpp
index 5472282f..a44c0aff 100644
--- a/include/msgpack/v1/adaptor/cpp11/array_char.hpp
+++ b/include/msgpack/v1/adaptor/cpp11/array_char.hpp
@@ -45,6 +45,13 @@ struct convert<std::array<char, N>> {
     }
 };
 
+template <>
+struct convert<std::array<char, 0>> {
+    msgpack::object const& operator()(msgpack::object const& o, std::array<char, 0>&) const {
+        return o;
+    }
+};
+
 template <std::size_t N>
 struct pack<std::array<char, N>> {
     template <typename Stream>
diff --git a/include/msgpack/v1/adaptor/cpp11/array_unsigned_char.hpp b/include/msgpack/v1/adaptor/cpp11/array_unsigned_char.hpp
index 815ee629..73fcc892 100644
--- a/include/msgpack/v1/adaptor/cpp11/array_unsigned_char.hpp
+++ b/include/msgpack/v1/adaptor/cpp11/array_unsigned_char.hpp
@@ -45,6 +45,13 @@ struct convert<std::array<unsigned char, N>> {
     }
 };
 
+template <>
+struct convert<std::array<unsigned char, 0>> {
+    msgpack::object const& operator()(msgpack::object const& o, std::array<unsigned char, 0>&) const {
+        return o;
+    }
+};
+
 template <std::size_t N>
 struct pack<std::array<unsigned char, N>> {
     template <typename Stream>