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    CWG Issue 171</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="171"></A><H4>171.
  
Global namespace scope
</H4>
<B>Section: </B>9.9&#160; [<A href="https://wg21.link/basic.namespace">basic.namespace</A>]
 &#160;&#160;&#160;

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

 <B>Submitter: </B>Greg Lutz
 &#160;&#160;&#160;

 <B>Date: </B>19 Sep 1999<BR>



<P>9.9 [<A href="https://wg21.link/basic.namespace#2">basic.namespace</A>] paragraph 2
says:</P>

<BLOCKQUOTE>
A name declared outside all named namespaces, blocks
(8.4 [<A href="https://wg21.link/stmt.block">stmt.block</A>]
) and
classes (Clause 11 [<A href="https://wg21.link/class">class</A>]
) has
global namespace scope
(6.4.6 [<A href="https://wg21.link/basic.scope.namespace">basic.scope.namespace</A>]
).
</BLOCKQUOTE>

But 6.4.6 [<A href="https://wg21.link/basic.scope.namespace">basic.scope.namespace</A>]

paragraph 3 says:

<BLOCKQUOTE>
A name declared outside all named or unnamed namespaces
(9.9 [<A href="https://wg21.link/basic.namespace">basic.namespace</A>]
),
blocks (8.4 [<A href="https://wg21.link/stmt.block">stmt.block</A>]
),
function declarations
(9.3.4.6 [<A href="https://wg21.link/dcl.fct">dcl.fct</A>]
),
function definitions
(9.6 [<A href="https://wg21.link/dcl.fct.def">dcl.fct.def</A>]
) and classes
(Clause 11 [<A href="https://wg21.link/class">class</A>]
) has global
namespace scope (also called global scope).
</BLOCKQUOTE>

9.9 [<A href="https://wg21.link/basic.namespace">basic.namespace</A>]

should evidently be changed to match the wording in
6.4.6 [<A href="https://wg21.link/basic.scope.namespace">basic.scope.namespace</A>]

&#8212; the unnamed namespace is <I>not</I> global scope.

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

<OL>

<LI>
<P>Replace the first sentence of 6.4.6 [<A href="https://wg21.link/basic.scope.namespace#3">basic.scope.namespace</A>] paragraph 3
with</P>

<BLOCKQUOTE>

The outermost declarative region of a translation unit is also a
namespace, called the <I>global namespace</I>.  A name declared in the
global namespace has <I>global namespace scope</I> (also called
<I>global scope</I>).

</BLOCKQUOTE>
</LI>

<LI><P>In the last sentence of the same paragraph, change "Names
declared in the global namespace scope" to "Names with global
namespace scope."</P></LI>

<LI>
<P>Replace 9.9 [<A href="https://wg21.link/basic.namespace#2">basic.namespace</A>] paragraph 2 with

<BLOCKQUOTE>

The outermost declarative region of a translation unit is a namespace;
see 6.4.6 [<A href="https://wg21.link/basic.scope.namespace">basic.scope.namespace</A>].

</BLOCKQUOTE>
</P>
</LI>

</OL>

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