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/* xbbcd.h
XBase64 Software Library
Copyright (c) 1997,2003,2014, 2018, 2019, 2022 Gary A Kunkel
The xb64 software library is covered under the terms of the GPL Version 3, 2007 license.
Email Contact:
XDB-devel@lists.sourceforge.net
XDB-users@lists.sourceforge.net
*/
#ifndef __XB_BCD_H__
#define __XB_BCD_H__
#ifdef XB_INDEX_SUPPORT
///@cond DOXYOFF
namespace xb{
// structure for bcd value
// next structure superceeded. Different compilers allocate different
// sizes to structures with bit fields, can't count on the size
/*
struct XBDLLEXPORT xbBcdStrucOld {
unsigned SigDigits : 8; // significant digit count
unsigned Filler : 2; // always set to 1
unsigned EncDigits : 5; // encoded digit count
unsigned Sign : 1; // +/- sign
unsigned char Data[10];
};
*/
struct XBDLLEXPORT xbBcdStruct {
unsigned char cSigDigits; // significant digit count
unsigned char cEncDigits; // encoded digit count
unsigned char cData[10]; // data
};
struct XBDLLEXPORT xbByteSplit {
unsigned c1 : 4;
unsigned c2 : 4;
};
class XBDLLEXPORT xbBcd {
public:
xbBcd( const xbString &sIn );
xbBcd( xbDouble dIn );
xbBcd( const void *vBcd12In );
void Set( xbDouble dIn );
void Set( const void *cBcd12In );
void Set( const xbString &sIn );
void ToString( xbString &sOut );
void ToDouble( xbDouble &dOut );
void ToBcd( xbBcdStruct &bcdOut );
void ToChar( char *cOut );
// const unsigned char * GetBcd() const;
void StringToBcd( const xbString &sStringIn );
// void StringToBcdOld( const xbString &sStringIn );
xbInt16 Compare( const xbBcd &bcdIn );
xbInt16 Compare( xbDouble d );
const unsigned char *GetData() const;
const void * GetBcd() const;
private:
void ctor();
unsigned char GetEncDigitsNoSign() const;
unsigned GetSign() const;
unsigned GetSigDigits() const;
unsigned GetActualSigDigits() const;
// xbBcdStruc bcdOld;
xbBcdStruct bcd;
};
} /* namespace xb */
///@endcond DOXYOFF
#endif /* XB_INDEX_SUPPORT */
#endif /* __XB_BCD_H__ */
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