From f32633414773ed0ec0f41a791afd14b52b0862a1 Mon Sep 17 00:00:00 2001
From: ToruNiina <niina.toru.68u@gmail.com>
Date: Sun, 8 Jul 2018 18:58:38 +0900
Subject: [PATCH] add definition of constexpr static value to avoid linker
 error

---
 toml/value.hpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/toml/value.hpp b/toml/value.hpp
index 3240956..cd1e385 100644
--- a/toml/value.hpp
+++ b/toml/value.hpp
@@ -174,6 +174,10 @@ struct value_traits
     constexpr static bool is_toml_type  = detail::is_valid(detail::check_type<T>());
     typedef typename detail::toml_default_type<type_index>::type type;
 };
+template<typename T>
+constexpr value_t value_traits<T>::type_index;
+template<typename T>
+constexpr bool    value_traits<T>::is_toml_type;
 
 class value
 {