xs:byte

Construct a byte value from an item value.

Related Syntax Constructs

The following construct(s) refer to this construct:

[ Syntax | Description | Argument | Examples ]

Syntax

xs:byte(item $value) => byte

Description

This is a constructor function that takes an item value as argument and returns a value of type xs:byte. If the argument is a literal, then the literal must be a valid lexical form of its type.

As specified in the respective section of the W3C recommendation XML Schema Part 2: Datatypes, xs:byte is a subtype derived from xs:short. The lexical representation is the set of numerical values in the range from -128 to 127. If no sign is used, "+" is assumed.

Argument

$value	item value

Examples

The following queries construct valid values of type xs:byte:
```
xs:byte(44)
```
```
xs:byte(-23)
```
```
xs:byte(-0)
```
The following queries do not construct valid values of type xs:byte:
```
xs:byte(4400)
```
```
xs:byte(-223)
```
```
xs:byte(-+0)
```