include/o3tl/vector_utils.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  */
  10
  11 #pragma once
  12
  13 #include <algorithm>
  14 #include <unordered_set>
  15 #include <vector>
  16
  17 namespace o3tl
  18 {
  19 // removes duplicated elements in a vector
  20 template <typename T> void remove_duplicates(std::vector<T>& rVector)
  21 {
  22     std::unordered_set<T> aSet;
  23     auto aEnd = std::copy_if(rVector.begin(), rVector.end(), rVector.begin(),
  24                              [&aSet](T const& rElement) { return aSet.insert(rElement).second; });
  25     rVector.erase(aEnd, rVector.end());
  26 }
  27 }
  28
  29 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */