configmgr/source/config_map.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 #pragma once
  10
  11 #include <map>
  12 #include <rtl/ustring.hxx>
  13
  14 // The realisation here is that while a map is a reasonably compact
  15 // representation, there is often no need to have it completely
  16 // sorted, so we can use a fast in-line length comparison as the
  17 // initial compare, rather than sorting of sub string contents.
  18
  19 struct LengthContentsCompare
  20 {
  21     bool operator()(std::u16string_view a, std::u16string_view b) const
  22     {
  23         if (a.size() == b.size())
  24             return a < b;
  25         else
  26             return a.size() < b.size();
  27     }
  28 };
  29
  30 template <class T> struct config_map : public std::map<OUString, T, LengthContentsCompare>
  31 {
  32 };
  33
  34 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */