BoostBook element requires

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## BoostBook element `requires`

requires — Declares the requirements of a function

## Synopsis

requires ::= (ANY)

## Attributes

Name | Type | Value | Purpose
--- | --- | --- | ---
last-revision | #IMPLIED | CDATA | Set to $Date$ to keep "last revised" information in sync with CVS changes
id | #IMPLIED | CDATA | A global identifier for this element
xml:base | #IMPLIED | CDATA | Implementation detail used by XIncludes