From 7c0a9ff4c1586ccfc563c41677d9b067c0a94cca Mon Sep 17 00:00:00 2001
From: Ruslan Garnov <ruslan.garnov@intel.com>
Date: Thu, 20 Jun 2019 14:36:16 +0300
Subject: [PATCH] Added overload of contains<> for tuple

---
 modules/gapi/include/opencv2/gapi/util/util.hpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/modules/gapi/include/opencv2/gapi/util/util.hpp b/modules/gapi/include/opencv2/gapi/util/util.hpp
index f68b738cdc..afcf5596fd 100644
--- a/modules/gapi/include/opencv2/gapi/util/util.hpp
+++ b/modules/gapi/include/opencv2/gapi/util/util.hpp
@@ -91,6 +91,9 @@ namespace detail
     template <typename T1, typename T2, typename... Ts>
     struct contains<T1, T2, Ts...> : std::integral_constant<bool, std::is_same<T1, T2>::value ||
                                                                   contains<T1, Ts...>::value> {};
+    template<typename T, typename... Types>
+    struct contains<T, std::tuple<Types...>> : std::integral_constant<bool, contains<T, Types...>::value> {};
+
     template <typename...>
     struct all_unique : std::true_type{};