From 7213c267983c37b24ae12f2d188e9ea1bf961b3b Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Mon, 23 Jun 2014 22:30:01 +0200
Subject: util/ConstBuffer: add method Contains()

---
 src/util/ConstBuffer.hxx | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'src')

diff --git a/src/util/ConstBuffer.hxx b/src/util/ConstBuffer.hxx
index 319102126..db8e64df0 100644
--- a/src/util/ConstBuffer.hxx
+++ b/src/util/ConstBuffer.hxx
@@ -138,6 +138,16 @@ struct ConstBuffer {
 		return size == 0;
 	}
 
+	template<typename U>
+	gcc_pure
+	bool Contains(U &&u) const {
+		for (const auto &i : *this)
+			if (u == i)
+				return true;
+
+		return false;
+	}
+
 	constexpr iterator begin() const {
 		return data;
 	}
-- 
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