/*
This file is part of Darling.

Copyright (C) 2012-2013 Lubos Dolezel

Darling is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

Darling is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Darling.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "ToolUtils.h"


int BitTst(const void* bytePtr, long bitNum)
{
	const long* v = static_cast<const long*>(bytePtr);
	return !!(*v & (1 << bitNum));
}

void BitSet(void* bytePtr, long bitNum)
{
	long* v = static_cast<long*>(bytePtr);
	*v |= (1 << bitNum);
}

void BitClr(void* bytePtr, long bitNum)
{
	long* v = static_cast<long*>(bytePtr);
	*v &= ~(1 << bitNum);
}

long BitAnd(long v1, long v2)
{
	return v1 & v2;
}

long BitXor(long v1, long v2)
{
	return v1 ^ v2;
}

long BitNot(long v1)
{
	return ~v1;
}

long BitShift(long value, short count)
{
	if (count >= 0)
		return value << count;
	else
		return value >> (-count);
}