/**
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* \file
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* Macros for tagging and untagging pointers.
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*
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* Copyright (C) 2014 Xamarin Inc
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*
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* Licensed under the MIT license. See LICENSE file in the project root for full license information.
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*/
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#ifndef __MONO_SGEN_TAGGED_POINTER_H__
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#define __MONO_SGEN_TAGGED_POINTER_H__
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#define SGEN_TAGGED_POINTER_MASK 7
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#define SGEN_POINTER_IS_TAGGED_1(p) ((mword)(p) & 1)
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#define SGEN_POINTER_TAG_1(p) ((void*)((mword)(p) | 1))
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#define SGEN_POINTER_UNTAG_1(p) ((void*)((mword)(p) & ~1))
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#define SGEN_POINTER_IS_TAGGED_2(p) ((mword)(p) & 2)
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#define SGEN_POINTER_TAG_2(p) ((void*)((mword)(p) | 2))
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#define SGEN_POINTER_UNTAG_2(p) ((void*)((mword)(p) & ~2))
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#define SGEN_POINTER_TAG_12(p) ((mword)(p) & 3)
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#define SGEN_POINTER_SET_TAG_12(p,t) ((void*)(((mword)(p) & ~3) | (t)))
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#define SGEN_POINTER_IS_TAGGED_4(p) ((mword)(p) & 4)
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#define SGEN_POINTER_TAG_4(p) ((void*)((mword)(p) | 4))
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#define SGEN_POINTER_UNTAG_4(p) ((void*)((mword)(p) & ~4))
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#define SGEN_POINTER_UNTAG_12(p) ((void*)((mword)(p) & ~3))
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#define SGEN_POINTER_UNTAG_24(p) ((void*)((mword)(p) & ~6))
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#define SGEN_POINTER_IS_TAGGED_ANY(p) ((mword)(p) & SGEN_TAGGED_POINTER_MASK)
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#define SGEN_POINTER_UNTAG_ALL(p) ((void*)((mword)(p) & ~SGEN_TAGGED_POINTER_MASK))
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#endif
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