mirror of
https://github.com/ApfelTeeSaft/reactos.git
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79 lines
1.6 KiB
C
79 lines
1.6 KiB
C
/*
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* ReactOS kernel
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* Copyright (C) 2004 ReactOS Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id$
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*
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* PROJECT: ReactOS kernel
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* PURPOSE: Runtime code
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* FILE: lib/rtl/bit.c
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* PROGRAMER: Eric Kohl
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*/
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/* INCLUDES *****************************************************************/
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#include "rtl.h"
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ****************************************************************/
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/*
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* @implemented
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*/
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CCHAR STDCALL
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RtlFindLeastSignificantBit(IN ULONGLONG Set)
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{
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int i;
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if (Set == 0ULL)
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return -1;
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for (i = 0; i < 64; i++)
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{
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if (Set & (1 << i))
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return (CCHAR)i;
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}
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return -1;
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}
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/*
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* @implemented
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*/
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CCHAR STDCALL
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RtlFindMostSignificantBit(IN ULONGLONG Set)
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{
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int i;
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if (Set == 0ULL)
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return -1;
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for (i = 63; i >= 0; i--)
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{
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if (Set & (1 << i))
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return (CCHAR)i;
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}
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return -1;
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}
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/* EOF */
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