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https://github.com/SerenityOS/serenity
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7ba3c22931
This will be used to fix the UHCI Controller, which relies on the pointer-size being 32-bit
62 lines
2.1 KiB
C++
62 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Leon Albrecht <leon2002.la@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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#include <AK/Assertions.h>
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namespace AK {
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template<typename T>
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class Ptr32 {
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public:
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Ptr32() = default;
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Ptr32(T* ptr)
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: m_ptr((u32) reinterpret_cast<uintptr_t>(ptr))
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{
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VERIFY((reinterpret_cast<uintptr_t>(ptr) & 0xFFFFFFFF) == m_ptr);
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}
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// inline T* operator*() { return (T*)m_ptr; }
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// inline const T* operator*() const { return (T*)m_ptr; }
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inline T* operator->()
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{
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VERIFY(m_ptr);
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return m_ptr;
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}
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inline operator T*() { return (T*)static_cast<uintptr_t>(m_ptr); }
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inline operator const T*() const { return (T*)static_cast<uintptr_t>(m_ptr); }
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private:
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u32 m_ptr { 0 };
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};
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}
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using AK::Ptr32;
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