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authorTomaž Vajngerl <tomaz.vajngerl@collabora.co.uk>2020-01-26 09:38:40 +0100
committerTomaž Vajngerl <quikee@gmail.com>2020-01-26 13:53:21 +0100
commitaf29884072817481273c03373899624933fd567a (patch)
tree267c7ecddb772605e472cfc527d5e555494b56c8 /include/o3tl
parente06760dbf2fd6a389aee2c8cf5eeb16f8a8044c2 (diff)
move "remove duplicates" for a vector to o3tl/vector_utils.hxx
Change-Id: I9ecf95a2bf975912b7029cdfb459a9ebc159c75d Reviewed-on: https://gerrit.libreoffice.org/c/core/+/87429 Tested-by: Jenkins Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Diffstat (limited to 'include/o3tl')
-rw-r--r--include/o3tl/vector_utils.hxx27
1 files changed, 27 insertions, 0 deletions
diff --git a/include/o3tl/vector_utils.hxx b/include/o3tl/vector_utils.hxx
new file mode 100644
index 000000000000..dc6d80a9ffbc
--- /dev/null
+++ b/include/o3tl/vector_utils.hxx
@@ -0,0 +1,27 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#pragma once
+
+#include <vector>
+
+namespace o3tl
+{
+// removes duplicated elements in a vector
+template <typename T> void remove_duplicates(std::vector<T>& rVector)
+{
+ std::unordered_set<T> aSet;
+ auto aEnd = std::copy_if(rVector.begin(), rVector.end(), rVector.begin(),
+ [&aSet](T const& rElement) { return aSet.insert(rElement).second; });
+ rVector.erase(aEnd, rVector.end());
+}
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */