xs:unsignedLong

Construct an unsignedLong value from an item value.

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Related Syntax Constructs

The following construct(s) refer to this construct:


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)