Data.FmtBcd.TBcd
Delphi
TBcd = record
Precision: Byte; { 1..64 }
SignSpecialPlaces: Byte; { Sign:1, Special:1, Places:6 }
Fraction: packed array [0..31] of Byte; { BCD Nibbles, 00..99 per Byte, high Nibble 1st }
class operator Implicit(const str: string): TBcd;
class operator Implicit(const d: double): TBcd;
class operator Implicit(const I: Integer): TBcd;
class operator Explicit(const ABcd: TBcd): string;
class operator Explicit(const ABcd: TBcd): Integer;
class operator Add(const A, B: TBcd): TBcd;
class operator Subtract(const A, B: TBcd): TBcd;
class operator Multiply(const A, B: TBcd): TBcd;
class operator Divide(const A, B: TBcd): TBcd;
class operator Negative(const A: TBcd): TBcd;
class operator Equal(const A, B: TBcd): Boolean;
class operator NotEqual(const A, B: TBcd): Boolean;
class operator GreaterThan(const A, B: TBcd): Boolean;
class operator LessThan(const A, B: TBcd): Boolean;
class operator GreaterThanOrEqual(const A, B: TBcd): Boolean;
class operator LessThanOrEqual(const A, B: TBcd): Boolean;
end;
C++
struct DECLSPEC_DRECORD TBcd
{
public:
System::Byte Precision;
System::Byte SignSpecialPlaces;
System::StaticArray<System::Byte, 32> Fraction;
static TBcd __fastcall _op_Implicit(const System::UnicodeString str);
TBcd& __fastcall operator=(const System::UnicodeString str) { *this = TBcd::_op_Implicit(str); return *this; };
static TBcd __fastcall _op_Implicit(const double d);
TBcd& __fastcall operator=(const double d) { *this = TBcd::_op_Implicit(d); return *this; };
static TBcd __fastcall _op_Implicit(const int I);
TBcd& __fastcall operator=(const int I) { *this = TBcd::_op_Implicit(I); return *this; };
static TBcd __fastcall _op_Addition(const TBcd &A, const TBcd &B);
static TBcd __fastcall _op_Subtraction(const TBcd &A, const TBcd &B);
static TBcd __fastcall _op_Multiply(const TBcd &A, const TBcd &B);
static TBcd __fastcall _op_Division(const TBcd &A, const TBcd &B);
static TBcd __fastcall _op_UnaryNegation(const TBcd &A);
static bool __fastcall _op_Equality(const TBcd &A, const TBcd &B);
static bool __fastcall _op_Inequality(const TBcd &A, const TBcd &B);
static bool __fastcall _op_GreaterThan(const TBcd &A, const TBcd &B);
static bool __fastcall _op_LessThan(const TBcd &A, const TBcd &B);
static bool __fastcall _op_GreaterThanOrEqual(const TBcd &A, const TBcd &B);
static bool __fastcall _op_LessThanOrEqual(const TBcd &A, const TBcd &B);
};
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
record struct |
public | Data.FmtBcd.pas Data.FMTBcd.hpp |
Data.FmtBcd | Data.FmtBcd |
Description
TBcd stores a binary coded decimal value.
TBcd represents a binary coded decimal value. It contains the following fields:
Field | Contents |
---|---|
Precision |
The number of digits in the decimal version of the value. |
SignSpecialPlaces |
The sign bit (0 is positive, any other value negative) |
Fraction |
An array of BCD nibbles, 00 to 99 per byte, high nibble first. Only the first Precision nibbles are used. |
You can create a Variant that represents a TBcd value using the Data.FmtBcd.VarFMTBcdCreate function. In fact, the easiest way to manipulate TBcd values is to create Variants for them and use the built-in operators provided by the Variant type.