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37 lines
718 B
C++
37 lines
718 B
C++
/*
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* \brief VirtualBox utilities
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* \author Christian Helmuth
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* \date 2013-08-28
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*/
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/*
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* Copyright (C) 2013-2017 Genode Labs GmbH
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*
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* This file is distributed under the terms of the GNU General Public License
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* version 2.
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*/
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#ifndef _UTIL_H_
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#define _UTIL_H_
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/* VirtualBox includes */
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#include <iprt/types.h>
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/**
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* 64bit-aware cast of pointer to RTRCPTR (uint32_t)
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*/
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template <typename T>
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RTRCPTR to_rtrcptr(T* ptr)
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{
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unsigned long long u64 = reinterpret_cast<unsigned long long>(ptr);
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RTRCPTR rtrcptr = u64 & 0xFFFFFFFFULL;
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AssertMsg((u64 == rtrcptr) || (u64 >> 32) == 0xFFFFFFFFULL,
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("pointer transformation - %llx != %x", u64, rtrcptr));
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return rtrcptr;
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}
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#endif /* _UTIL_H_ */
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