Data Types Compared in Various Languages

This topic lists the data types for Visual Basic, C++, C#, and F#.

Table of Data Types

Content and size	Visual Basic	C++	C#	F#
Unknown data	Not applicable	VARIANT	Derive types, then link to Derived Types node	Discriminated Unions
Decimal	Decimal (.NET Framework structure)	DECIMAL	decimal	decimal
Date	Date (.NET Framework structure)	DATE	DateTime	DateTime
SBCS character (1 byte)	Not applicable	signed char __int8	Not applicable	sbyte
Unicode character (2 bytes)	Char (.NET Framework structure)	wchar_t	char	char
Unicode character sequence	String (.NET Framework class)	wchar_t*	string	string
Boolean (platform dependent)	Boolean (.NET Framework structure)	VARIANT_BOOL	bool	bool
1 byte	SByte Data Type (Visual Basic) (.NET Framework structure)	signed char	sbyte	sbyte
2 bytes	Short (.NET Framework structure)	signed short int __int16	short	int16
4 bytes	Integer (.NET Framework structure)	long, (long int, signed long int)	int	int32
8 bytes	Long (.NET Framework structure)	__int64	long	int64
1 byte unsigned	Byte (.NET Framework structure)	BYTE bool	byte	byte
2 bytes unsigned	UShort Data Type (Visual Basic) (.NET Framework structure)	unsigned short	ushort	uint16
4 bytes unsigned	UInteger Data Type (.NET Framework structure)	unsigned int and unsigned long	uint	uint
8 bytes unsigned	ULong Data Type (Visual Basic) (.NET Framework structure)	unsigned __int64	ulong	uint64
4 bytes floating point	Single (.NET Framework structure)	float	float	float32 -or- single
8 bytes floating point	Double (.NET Framework structure)	double	double	float -or- double