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