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<H1> 2.9 Reserved Words</H1>
<H4 ALIGN=CENTER>Syntax</H4>
<DIV Class="Paranum"><FONT SIZE=-2>1/1</FONT></DIV>
<DIV Class="SyntaxIndented" Style="margin-bottom: 0.2em"><FONT SIZE=-1><I>This
paragraph was deleted.</I></FONT><S> </S></DIV>
<DIV Class="Paranum"><FONT SIZE=-2>2</FONT></DIV>
<DIV Class="SyntaxIndented"><A NAME="I1292"></A>The following are the
<I>reserved words</I> (ignoring upper/lower case distinctions): </DIV>
<DIV Class="Paranum"><FONT SIZE=-2>2.a</FONT></DIV>
<DIV Class="Annotations"><FONT SIZE=-1><B>Discussion: </B>Reserved words
have special meaning in the syntax. In addition, certain reserved words
are used as attribute names.</FONT></DIV>
<DIV Class="Paranum"><FONT SIZE=-2>2.b</FONT></DIV>
<DIV Class="Annotations"><FONT SIZE=-1>The syntactic category <FONT FACE="Arial, Helvetica">identifier</FONT>
no longer allows reserved words. We have added the few reserved words
that are legal explicitly to the syntax for <FONT FACE="Arial, Helvetica">attribute_reference</FONT>.
Allowing identifier to include reserved words has been a source of confusion
for some users, and differs from the way they are treated in the C and
Pascal language definitions. </FONT></DIV>
<DIV Class="CodeIndented"><TABLE Width="70%">
<TR><TD align="left"><B>abort</B><TD align="left"><B>else</B><TD align="left"><B>new</B><TD align="left"><B>return</B><TD align="left">
<TR><TD align="left"><B>abs</B><TD align="left"><B>elsif</B><TD align="left"><B>not</B><TD align="left"><B>reverse</B><TD align="left">
<TR><TD align="left"><B>abstract</B><TD align="left"><B>end</B><TD align="left"><B>null</B><TD align="left"> <TD align="left">
<TR><TD align="left"><B>accept</B><TD align="left"><B>entry</B><TD align="left"> <TD align="left"><B>select</B><TD align="left">
<TR><TD align="left"><B>access</B><TD align="left"><B>exception</B><TD align="left"><B>of</B><TD align="left"><B>separate</B><TD align="left">
<TR><TD align="left"><B>aliased</B><TD align="left"><B>exit</B><TD align="left"><B>or</B><TD align="left"><B>subtype</B><TD align="left">
<TR><TD align="left"><B>all</B><TD align="left"> <TD align="left"><B>others</B><TD align="left"> <TD align="left">
<TR><TD align="left"><B>and</B><TD align="left"><B>for</B><TD align="left"><B>out</B><TD align="left"><B>tagged</B><TD align="left">
<TR><TD align="left"><B>array</B><TD align="left"><B>function</B><TD align="left"> <TD align="left"><B>task</B><TD align="left">
<TR><TD align="left"><B>at</B><TD align="left"> <TD align="left"><B>package</B><TD align="left"><B>terminate</B><TD align="left">
<TR><TD align="left"> <TD align="left"><B>generic</B><TD align="left"><B>pragma</B><TD align="left"><B>then</B><TD align="left">
<TR><TD align="left"><B>begin</B><TD align="left"><B>goto</B><TD align="left"><B>private</B><TD align="left"><B>type</B><TD align="left">
<TR><TD align="left"><B>body</B><TD align="left"> <TD align="left"><B>procedure</B><TD align="left"> <TD align="left">
<TR><TD align="left"> <TD align="left"><B>if</B><TD align="left"><B>protected</B><TD align="left"><B>until</B><TD align="left">
<TR><TD align="left"><B>case</B><TD align="left"><B>in</B><TD align="left"> <TD align="left"><B>use</B><TD align="left">
<TR><TD align="left"><B>constant</B><TD align="left"><B>is</B><TD align="left"><B>raise</B><TD align="left"> <TD align="left">
<TR><TD align="left"> <TD align="left"> <TD align="left"><B>range</B><TD align="left"><B>when</B><TD align="left">
<TR><TD align="left"><B>declare</B><TD align="left"><B>limited</B><TD align="left"><B>record</B><TD align="left"><B>while</B><TD align="left">
<TR><TD align="left"><B>delay</B><TD align="left"><B>loop</B><TD align="left"><B>rem</B><TD align="left"><B>with</B><TD align="left">
<TR><TD align="left"><B>delta</B><TD align="left"> <TD align="left"><B>renames</B><TD align="left"> <TD align="left">
<TR><TD align="left"><B>digits</B><TD align="left"><B>mod</B><TD align="left"><B>requeue</B><TD align="left"><B>xor</B><TD align="left">
<TR><TD align="left"><B>do</B><TD align="left"> <TD align="left"> <TD align="left"> <TD align="left">
</TABLE></DIV>
<DIV Class="NotesHeader"><FONT SIZE=-1>NOTES</FONT></DIV>
<DIV Class="Paranum"><FONT SIZE=-2>3</FONT></DIV>
<DIV Class="Notes"><FONT SIZE=-1>6 The reserved words appear
in <B>lower case boldface</B> in this International Standard, except
when used in the <FONT FACE="Arial, Helvetica">designator</FONT> of an
attribute (see <A HREF="AA-4-1-4.html">4.1.4</A>). Lower case boldface
is also used for a reserved word in a <FONT FACE="Arial, Helvetica">string_literal</FONT>
used as an <FONT FACE="Arial, Helvetica">operator_symbol</FONT>. This
is merely a convention -- programs may be written in whatever typeface
is desired and available. </FONT></DIV>
<H4 ALIGN=CENTER>Incompatibilities With Ada 83</H4>
<DIV Class="Paranum"><FONT SIZE=-2>3.a</FONT></DIV>
<DIV Class="Annotations"><FONT SIZE=-1><A NAME="I1293"></A>The following
words are not reserved in Ada 83, but are reserved in Ada 95: <B>abstract</B>,
<B>aliased</B>, <B>protected</B>, <B>requeue</B>, <B>tagged</B>, <B>until</B>.
</FONT></DIV>
<H4 ALIGN=CENTER>Wording Changes from Ada 83</H4>
<DIV Class="Paranum"><FONT SIZE=-2>3.b</FONT></DIV>
<DIV Class="Annotations"><FONT SIZE=-1>The clause entitled ``Allowed
Replacements of Characters'' has been moved to <A HREF="AA-J.html">Annex
J</A>, ``<A HREF="AA-J.html">Obsolescent Features</A>''. </FONT></DIV>
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