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    CWG Issue 145</TITLE>
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<P><EM>This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21
  Core Issues List revision 118b.
  See http://www.open-std.org/jtc1/sc22/wg21/ for the official
  list.</EM></P>
<P>2025-09-28</P>
<HR>
<A NAME="145"></A><H4>145.
  
Deprecation of prefix <TT>++</TT>
</H4>
<B>Section: </B>D.6&#160; [<A href="https://wg21.link/depr.impldec">depr.impldec</A>]
 &#160;&#160;&#160;

 <B>Status: </B>TC1
 &#160;&#160;&#160;

 <B>Submitter: </B>Mike Miller
 &#160;&#160;&#160;

 <B>Date: </B>23 Jul 1999<BR>



<P>D.6 [<A href="https://wg21.link/depr.impldec">depr.impldec</A>]

indicates that use of the postfix <TT>++</TT> with a <TT>bool</TT>
operand is
deprecated.
Annex Clause Annex D [<A href="https://wg21.link/depr">depr</A>]

says nothing about prefix <TT>++</TT>.  However, this
use of prefix <TT>++</TT> is also deprecated, according to
7.6.2.3 [<A href="https://wg21.link/expr.pre.incr#1">expr.pre.incr</A>] paragraph 1.

Presumably D.6 [<A href="https://wg21.link/depr.impldec">depr.impldec</A>]

should be expanded to cover prefix <TT>++</TT>, or another
section should be added to Annex
Clause Annex D [<A href="https://wg21.link/depr">depr</A>].</P>

<P><B>Proposed resolution (10/00):</B></P>

<P>Change the entire section
D.6 [<A href="https://wg21.link/depr.impldec">depr.impldec</A>], including its heading, to read as
follows:</P>

<BLOCKQUOTE>

<TABLE CELLSPACING="0" CELLPADDING="0" FRAME="VOID" RULES="NONE" WIDTH="85%">
 <TR>
  <TD>
   <B>D.1 Increment operator with <TT>bool</TT> operand</B>
  </TD>
  <TD ALIGN="RIGHT">
   <B>[depr.incr.bool]</B>
  </TD>
 </TR>
</TABLE>

<P>The use of an operand of type <TT>bool</TT> with the <TT>++</TT>
operator is deprecated (see 7.6.2.3 [<A href="https://wg21.link/expr.pre.incr">expr.pre.incr</A>] and
7.6.1.6 [<A href="https://wg21.link/expr.post.incr">expr.post.incr</A>]).</P>

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