Comparison of Delphi, C/C ++, and Visual Basic Data Types
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Variable type: Delphi C/C ++ Visual Basic
8-bit signed integer char --
8-digit -- symbol integer Byte BYTE, unsigned short Byte
16-bit signed integer SmallInt short Short
16-bit -- signed integer Word unsigned short --
32-bit signed Integer, Longint int, long Integer Long
32-bit -- symbol integer Cardinal, LongWord unsigned long --
64-bit signed integer Int64 _ int64 --
4-byte floating point number Single float Single
6-byte floating point number Real48 ----
8-byte floating point number Double double Double
10-byte floating point number Extnded long double --
64-bit currency value Currency -- currency
8-byte Date/time TDateTime -- Date
16-byte variantVariant, VARIANT Variant (Note), Variant (default)
OleVariant, TVarData OleVariant (note)
1-byte character Char char --
2-byte character WideChar WCHAR --
String of fixed length bytes string ----
Dynamic String AnsiString (Note) String
String PChar * ended with Null *--
Width string PWideChar LPCWSTR ended with Null --
Dynamic 2-byte string WideString (Note )--
1-byte Boolean, ByteBool (any number of 1 bytes )--
2-byte Boolean value WordBool (any 2-byte number) Boolean
4-byte Boolean value BOOL, LongBool BOOL --
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