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    CWG Issue 3014</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="3014"></A><H4>3014.
  
Comma-delimited vs. comma-separated output for <TT>#embed</TT>
</H4>
<B>Section: </B>15.4.1&#160; [<A href="https://wg21.link/cpp.embed.gen">cpp.embed.gen</A>]
 &#160;&#160;&#160;

 <B>Status: </B>CD7
 &#160;&#160;&#160;

 <B>Submitter: </B>Hubert Tong
 &#160;&#160;&#160;

 <B>Date: </B>2025-02-15<BR>


<P>[Accepted at the June, 2025 meeting.]</P>



<P>Subclause 15.4.1 [<A href="https://wg21.link/cpp.embed.gen#7">cpp.embed.gen</A>] paragraph 7 specifies
"comma-delimited" output for <TT>#embed</TT>.  However, that allows
for a trailing comma that is undesirable.</P>

<P><B>Proposed resolution (approved by CWG 2025-06-20):</B></P>

<P>Change in 15.4.1 [<A href="https://wg21.link/cpp.embed.gen#7">cpp.embed.gen</A>] paragraph 7 and paragraph 8 as follows:</P>

<BLOCKQUOTE>

<P>The #embed directive is replaced by a <DEL>comma-delimited</DEL>
<INS>comma-separated</INS> list of integer literals of type int,
unless otherwise modified by embed parameters
(15.4.2 [<A href="https://wg21.link/cpp.embed.param">cpp.embed.param</A>]).</P>

<P>The integer literals in the <DEL>comma-delimited</DEL>
<INS>comma-separated</INS> list correspond to resource-count
consecutive calls to std::fgetc (31.13.1 [<A href="https://wg21.link/cstdio.syn">cstdio.syn</A>]) from
the resource, as a binary file. If any call to std::fgetc returns EOF,
the program is ill-formed.</P>

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