From f3146e43cd19bdf85957d6d62132ac7c31eacc50 Mon Sep 17 00:00:00 2001
From: Mikhail Pozdnyakov <mikhail.pozdnyakov@mapbox.com>
Date: Thu, 26 Sep 2019 17:53:49 +0300
Subject: [core] ValueFactory for `expression::formatted`, other improvements

---
 include/mbgl/util/traits.hpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'include/mbgl/util')

diff --git a/include/mbgl/util/traits.hpp b/include/mbgl/util/traits.hpp
index 5b9401aad7..e37144e60e 100644
--- a/include/mbgl/util/traits.hpp
+++ b/include/mbgl/util/traits.hpp
@@ -1,7 +1,9 @@
 #pragma once
 
+#include <array>
 #include <cstdint>
 #include <type_traits>
+#include <vector>
 
 namespace mbgl {
 
@@ -25,4 +27,12 @@ typename std::enable_if<is_utf16char_like<InChar>::value && is_utf16char_like_po
     return reinterpret_cast<OutPointer>(in);
 }
 
+template <typename T>
+struct is_linear_container : std::false_type {};
+
+template <typename T, std::size_t N>
+struct is_linear_container<std::array<T, N>> : std::true_type {};
+template <typename... Ts>
+struct is_linear_container<std::vector<Ts...>> : std::true_type {};
+
 } // namespace mbgl
-- 
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