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0a2cab0928
Use the AK version of std::initializer_list in AK::Vector, but only when in serenity. When building AK for a non-serenity target, the header <initializer_list> should be always available.
75 lines
2.6 KiB
C++
75 lines
2.6 KiB
C++
/*
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* Copyright (c) 2020, Andrew Kaster <andrewdkaster@gmail.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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// std::initializer_list is a special type as far as the compiler is concerned.
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// As far as why it needs implemented in the library... blame the committee
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namespace std {
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template<class E>
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class initializer_list {
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public:
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typedef E value_type;
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typedef const E& reference;
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typedef const E& const_reference;
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typedef size_t size_type;
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typedef const E* iterator;
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typedef const E* const_iterator;
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constexpr initializer_list() noexcept = default;
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constexpr size_t size() const noexcept { return m_size; };
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constexpr const E* begin() const noexcept { return m_begin; };
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constexpr const E* end() const noexcept { return m_begin + m_size; }
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private:
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// Note: begin has to be first or the compiler gets very upset
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const E* m_begin = { nullptr };
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size_t m_size = { 0 };
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// The compiler is allowed to call this constructor
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constexpr initializer_list(const E* e, size_t s) noexcept
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: m_begin(e)
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, m_size(s)
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{
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}
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};
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template<class E>
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constexpr const E* begin(initializer_list<E> il) noexcept
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{
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return il.begin();
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}
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template<class E>
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constexpr const E* end(initializer_list<E> il) noexcept
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{
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return il.end();
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}
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} // end namespace std
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