C + +/CLI basic data type and function "3"

aliases for primitive data types are provided in the C + +/CLI extensions, which are identical to the built-in data type names provided in C + +.

The primary primitive data types provided are the following aliases (C + +/CLI types):

Primitive data types	C + +/CLI type	Description
Boolean	bool	Boolean type
Byte	Char	8-bit unsigned integer
SByte	Signed Char	8-bit signed integer
Char	__wchar_t	16-bit Unicode character type
Int16	Short	16-bit signed integer
UInt16	unsigned short	16-bit unsigned integer
Int32	int or Long	32-bit signed integer
UInt32	unsigned int long	32-bit signed integer
Int64	__int64	64-bit signed integer
UInt64	unsigned __int64	64-bit signed integer
Single	Float	32-bit single-precision floating-point number
Double	Double	64-bit double-precision floating-point number
Decimal	Decimal	96-bit signed integer
Object	object^	Class object reference
String	string^	Unicode String Reference

Mathematical Functions    

Although the C + + system library functions can still be used in a CLI program. For example, use mathematical functions by including math.h. However , in a managed program, you should

Replace the system library functions that use C + + with the large number of type and type methods provided by the FCL . The math functions most frequently used by programs are in the FCL by the math type

The static properties of the type provided by the method e and pi provide the user with the usual mathematical constants e and π; the static member function of this type provides users with common mathematical functions such as

Under

Absolute value function:Abs

exponential function: Exp

Trigonometric functions: Sin Cos Tan

Hyperbolic trigonometric functions:Sinh Cosh Tanh

Inverse trigonometric function: Asin Acos Atan Atan2

Logarithmic function: log Log10

Square function: Pow

Radical function: Sqrt

To find a larger number function:Max

To ask for a smaller number of functions:Min

Rounding function:Round

Rounding function: Floor

Note the use of these static properties and methods must be prefixed with the class name math and the domain operator :: , for example, math::P i,math::sqrt (25.0) , and so on. Casts can pass

The method implementation provided by the Convert type defined in the System namespace. For example, to cast a variable value of type Int32 to

int number;

__int64 Longnumber =convert::toint64 (number);

Note that the cast allows for non-compliance with the principle of data length promotion.

C + +/CLI basic data type and function "3"