From 0168b96b79db2627fdba77a8712956408aa081d1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?louiz=E2=80=99?= <louiz@louiz.org>
Date: Wed, 4 Oct 2017 21:28:18 +0200
Subject: Add postgresql support

---
 src/utils/is_one_of.hpp | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 src/utils/is_one_of.hpp

(limited to 'src/utils/is_one_of.hpp')

diff --git a/src/utils/is_one_of.hpp b/src/utils/is_one_of.hpp
new file mode 100644
index 0000000..4d6770e
--- /dev/null
+++ b/src/utils/is_one_of.hpp
@@ -0,0 +1,17 @@
+#pragma once
+
+#include <type_traits>
+
+template <typename...>
+struct is_one_of_implem {
+    static constexpr bool value = false;
+};
+
+template <typename F, typename S, typename... T>
+struct is_one_of_implem<F, S, T...> {
+    static constexpr bool value =
+        std::is_same<F, S>::value || is_one_of_implem<F, T...>::value;
+};
+
+template<typename... T>
+constexpr bool is_one_of = is_one_of_implem<T...>::value;
-- 
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