xs:unsignedLong

Construct an unsignedLong value from an item value.

Related Syntax Constructs

The following construct(s) refer to this construct:

[ Syntax | Description | Argument | Example ]

Syntax

xs:unsignedLong(item $value) => unsignedLong

Description

This is a constructor function that takes an item value as argument and returns a value of type xs:unsignedLong. 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, a value of type xs:unsignedLong represents an integer value derived from xs:nonNegativeInteger. The lexical representation is the set of unsigned numerical values in the range from 0 to 18446744073709551615.

Argument

$value	item value

Example

The following queries construct valid values of type xs:unsignedLong:
```
xs:unsignedLong(18446744073709551615)
```
```
xs:unsignedLong(-0)
```
The following queries do not construct valid values of type xs:unsignedInt:
```
xs:unsignedLong(18446744073709551616)
```
```
xs:unsignedLong(-223)
```