45 lines
1.2 KiB
C++
45 lines
1.2 KiB
C++
/*
|
|
* Copyright (C) Nemirtingas
|
|
* This file is part of System.
|
|
*
|
|
* System is free software; you can redistribute it
|
|
* and/or modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* System is distributed in the hope that it will be
|
|
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with System; if not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <cstddef> // size_t
|
|
|
|
namespace System {
|
|
namespace ConstExpr {
|
|
template<typename T, size_t N>
|
|
constexpr size_t CountOf(T(&)[N])
|
|
{
|
|
return N;
|
|
}
|
|
|
|
template<typename T, size_t N>
|
|
constexpr size_t StrLen(T(&)[N])
|
|
{
|
|
return N-1;
|
|
}
|
|
|
|
// Sum of all parameter pack sizeof
|
|
template <typename... Ts>
|
|
constexpr size_t size_of = 0;
|
|
|
|
template <typename T, typename... Ts>
|
|
constexpr size_t size_of<T, Ts...> = sizeof(T) + size_of<Ts...>;
|
|
}
|
|
} |