<div class="content"><p> </p><p>The RestrictionUnion_r structure encodes a single instance
of any type of restriction. It is an aggregation data structure, allowing a
single parameter to a <span><a href="1b8009c5-72bc-41da-bbab-612b31da4410#gt_e63aea5b-046b-4176-9359-fde82613a406" data-linktype="relative-path">Name Service Provider Interface
(NSPI)</a></span> method to contain any type of restriction data structure.</p><dl>
<dd>
<div><pre> typedef 
 [switch_type(long)] 
 union _RestrictionUnion_r {
   [case(0x00000000)] 
     AndRestriction_r resAnd;
   [case(0x00000001)] OrRestriction_r resOr;
   [case(0x00000002)] 
     NotRestriction_r resNot;
   [case(0x00000003)] 
     ContentRestriction_r resContent;
   [case(0x00000004)] 
     PropertyRestriction_r resProperty;
   [case(0x00000005)] 
     ComparePropsRestriction_r resCompareProps;
   [case(0x00000006)] 
     BitMaskRestriction_r resBitMask;
   [case(0x00000007)] 
     SizeRestriction_r resSize;
   [case(0x00000008)] 
     ExistRestriction_r resExist;
   [case(0x00000009)] 
     SubRestriction_r resSubRestriction;
 } RestrictionUnion_r;
</pre></div>
</dd></dl><p><b>resAnd:</b>  RestrictionUnion_r contains
an encoding of an <b>AndRestriction</b>.</p><p><b>resOr:</b>  RestrictionUnion_r contains
an encoding of an <b>OrRestriction</b>.</p><p><b>resNot:</b>  RestrictionUnion_r contains
an encoding of a <b>NotRestriction</b>.</p><p><b>resContent:</b>  RestrictionUnion_r
contains an encoding of a <b>ContentRestriction</b>.</p><p><b>resProperty:</b>  RestrictionUnion_r
contains an encoding of a <b>PropertyRestriction</b>.</p><p><b>resCompareProps:</b>  RestrictionUnion_r
contains an encoding of a <b>CompareRestriction</b>.</p><p><b>resBitMask:</b>  RestrictionUnion_r
contains an encoding of a <b>BitMaskRestriction</b>.</p><p><b>resSize:</b>  RestrictionUnion_r
contains an encoding of a <b>SizeRestriction</b>.</p><p><b>resExist:</b>  RestrictionUnion_r
contains an encoding of an <b>ExistRestriction</b>.</p><p><b>resSubRestriction:</b>  RestrictionUnion_r
contains an encoding of a <b>SubRestriction</b>.</p></div>