CByte

FreeBASIC

CByte
 
Converts numeric or string expression to Byte.

Syntax

Declare Function CByte ( ByVal expression As datatype ) As Byte

Type typename
End Type

Usage

result = CByte( numeric expression )
result = CByte( string expression )
result = CByte( user defined type )

Parameters

expression
A numeric, string, or pointer expression to cast to a Byte value.
datatype
Any numeric, string, or pointer data type.
typename
A user defined type.

Return Value

A Byte value.

Description

The CByte function rounds off the decimal part and returns a 8-bit Byte value. The function does not check for an overflow, and results are undefined for values which are less than -128 or larger than 127.

The name can be explained as 'Convert to Byte'.

If the argument is a string expression, it is converted to numeric by using ValInt.

Example

' Using the CBYTE function to convert a numeric value

'Create an BYTE variable
Dim numeric_value As Byte

'Convert a numeric value
numeric_value = CByte(-66.30)

'Print the result, should return -66
Print numeric_value
Sleep


Dialect Differences

  • Not available in the -lang qb dialect unless referenced with the alias __Cbyte.

Differences from QB

  • New to FreeBASIC

See also