/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_basic.hxx"

#define _TLBIGINT_INT64
#include <tools/bigint.hxx>
#include <basic/sbx.hxx>

///////////////////////////// BigInt/Currency //////////////////////////////

SbxValues::SbxValues( const BigInt &rBig ) : eType(SbxCURRENCY)
{
	rBig.INT64( &nLong64 );
}

//TODO:  BigInt is TOOLS_DLLPUBLIC, and its four member functions only declared
// and defined within basic (#define _TLBIGINT_INT64) are a bad hack that causes
// "warning C4273: 'function' : inconsistent dll linkage" on MSC; this whole
// mess should be cleaned up properly (e.g., by completely removing Sbx[U]INT64
// and using sal_[u]Int64 instead):
#if defined _MSC_VER
#pragma warning(disable: 4273)
#endif

sal_Bool BigInt::INT64( SbxINT64 *p ) const
{
	if( bIsBig ) {
		if( nLen > 4 || (nNum[3] & 0x8000) )
			return sal_False;

		p->nLow  = ((sal_uInt32)nNum[1] << 16) | (sal_uInt32)nNum[0];
		p->nHigh = ((sal_uInt32)nNum[3] << 16) | (sal_uInt32)nNum[2];
		if( bIsNeg )
			p->CHS();
	}
	else
		p->Set( (sal_Int32)nVal );

	return sal_True;
}

BigInt::BigInt( const SbxINT64 &r )
{
	BigInt a10000 = 0x10000;

	*this = r.nHigh;
	if( r.nHigh )
		*this *= a10000;
	*this += (sal_uInt16)(r.nLow >> 16);
	*this *= a10000;
	*this += (sal_uInt16)r.nLow;
}

sal_Bool BigInt::UINT64( SbxUINT64 *p ) const
{
	if( bIsBig ) {
		if( bIsNeg || nLen > 4 )
			return sal_False;

		p->nLow  = ((sal_uInt32)nNum[1] << 16) | (sal_uInt32)nNum[0];
		p->nHigh = ((sal_uInt32)nNum[3] << 16) | (sal_uInt32)nNum[2];
	}
	else {
		if( nVal < 0 )
			return sal_False;

		p->Set( (sal_uInt32)nVal );
	}

	return sal_True;
}

BigInt::BigInt( const SbxUINT64 &r )
{
	BigInt a10000 = 0x10000;

	*this = BigInt(r.nHigh);
	if( r.nHigh )
		*this *= a10000;
	*this += (sal_uInt16)(r.nLow >> 16);
	*this *= a10000;
	*this += (sal_uInt16)r.nLow;
}