[Bug c++/19373] New: Including STL headers in a namespace doesn't compile

[Bug c++/19373] New: Including STL headers in a namespace doesn't compile

[JurgenvonOerthel at hotmail dot com]

The following code doesn't compile:

namespace foo {
#include <vector>
}

int main (void) {
  return 0;
}

Many errors follow, the first one looks like:

In file included 
from /sys/cadappl_linuxi386_borealis/gcc/3.3.3/include/c++/3.3.3/cstring:49,
                 
from /sys/cadappl_linuxi386_borealis/gcc/3.3.3/include/c++/3.3.3/bits/stl_algob
ase.h:65,
                 
from /sys/cadappl_linuxi386_borealis/gcc/3.3.3/include/c++/3.3.3/vector:67,
                 from map_test.cc:2:
/sys/cadappl_linuxi386_borealis/gcc/3.3.3/include/c++/3.3.3/cstddef:52: error: 
`
   ptrdiff_t' not declared
/sys/cadappl_linuxi386_borealis/gcc/3.3.3/include/c++/3.3.3/cstddef:53: error: 
`
   size_t' not declared

-- 
           Summary: Including STL headers in a namespace doesn't compile
           Product: gcc
           Version: 3.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: JurgenvonOerthel at hotmail dot com
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19373

[Bug c++/19373] Including STL headers in a namespace doesn't compile

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-01-11 14:20 -------
Yes this is invalid, sorry, you cannot do this.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19373

[Bug c++/19373] Including STL headers in a namespace doesn't compile

[gdr at integrable-solutions dot net]

------- Additional Comments From gdr at integrable-solutions dot net  2005-01-11 19:48 -------
Subject: Re:  New: Including STL headers in a namespace doesn't compile

"JurgenvonOerthel at hotmail dot com" <gcc-bugzilla@gcc.gnu.org> writes:

| The following code doesn't compile:

Then, don't do it.

-- Gaby


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19373

[Bug c++/19373] Including STL headers in a namespace doesn't compile

[bkoz at gcc dot gnu dot org]

------- Additional Comments From bkoz at gcc dot gnu dot org  2005-01-11 22:49 -------
Gaby, your comment is funny! Made me laugh, since I just got out of my cast.

Just for reference, this is invalid because it would invalidate 

17.4.1.1 - Library contents 

requires std or std:: namespaces for library components

17.4.3.1.4 - Types [lib.extern.types]

ie std::size_t and ::size_t could no longer be equivalent.

It would also change standard-defined external linkage

17.4.3.1.3 - External linkage

-benjamin

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19373