21 lines
465 B
C
21 lines
465 B
C
/*
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* Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
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*
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* This document is the property of Apple Computer, Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Computer, Inc.
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*/
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#include <lib/libiboot.h>
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int log2_int(unsigned int val)
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{
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if (val == 0)
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return 0;
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return 31 - __builtin_clz(val);
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}
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