include/o3tl/underlyingenumvalue.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   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 #ifndef INCLUDED_O3TL_UNDERLYINGENUMVALUE_HXX
  11 #define INCLUDED_O3TL_UNDERLYINGENUMVALUE_HXX
  12
  13 #include <sal/config.h>
  14
  15 #include <type_traits>
  16
  17 namespace o3tl
  18 {
  19 // For a value e of an enumeration type T, return the corresponding value of T's underlying type:
  20 template <typename T> constexpr std::underlying_type_t<T> underlyingEnumValue(T e)
  21 {
  22     return static_cast<std::underlying_type_t<T>>(e);
  23 }
  24 }
  25
  26 #endif
  27
  28 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */