hxinitializer_list.hpp

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#pragma once
// SPDX-FileCopyrightText: © 2017-2026 Adrian Johnston.
// SPDX-License-Identifier: MIT
// This file is licensed under the MIT license found in the LICENSE.md file.

 
#include "libhatchet.h"
 
// HX_USE_MACROS_WITH_MODULE allows including macros alongside the module.
#if HX_USE_MACROS_WITH_MODULE
#error Header does not provide macros alone.
#endif
 
#if HX_USE_LIBCXX
#include <initializer_list>
#elif defined _MSC_VER
#error No custom <initializer_list> provided for MSVC. Set HX_USE_LIBCXX.
#else // !HX_USE_LIBCXX

namespace std {
 
template<typename T>
class initializer_list {
public:
    using value_type = T;
    using reference = const T&;
    using const_reference = const T&;
    using size_type = size_t;
    using iterator = const T*;
    using const_iterator = const T*;
 
    constexpr initializer_list(void) noexcept : m_begin(0), m_size(0u) { }
    constexpr size_t size(void) const noexcept { return m_size; }
    constexpr const T* begin(void) const noexcept { return m_begin; }
    constexpr const T* end(void) const noexcept { return m_begin + m_size; }
 
private:
    constexpr initializer_list(const T* begin_, size_t size_) noexcept
        : m_begin(begin_), m_size(size_) { }
 
    const T* m_begin;
    size_t m_size;
};
 
} // namespace std
#endif // !HX_USE_LIBCXX