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* [Bug c++/29123] New: accepts typedef as elaborated type specifier in friend declaration
@ 2006-09-18 9:26 gcc at pdoerfler dot com
2006-09-18 23:38 ` [Bug c++/29123] " fang at csl dot cornell dot edu
2006-09-18 23:43 ` pinskia at gcc dot gnu dot org
0 siblings, 2 replies; 3+ messages in thread
From: gcc at pdoerfler dot com @ 2006-09-18 9:26 UTC (permalink / raw)
To: gcc-bugs
In the following testcase wrap<C>::type is accepted as elaborate type specifier
which AFAIU is not permitted by the current standard.
-------------------------------------------------------------
template <class C>
struct wrap
{
typedef C type;
};
template <class T>
class foo
{
friend class wrap<T>::type;
// T t;
};
template <typename U>
class bar
{
// bar();
};
foo<bar<int> > f;
------------------------------------------------
ICC9.1 rejects this code with:
testTypedefFriend.cpp(10): error: typedef "type" may not be used in an
elaborated type specifier
friend class wrap<T>::type;
^
detected during instantiation of class "foo<T> [with T=bar<int>]" at
line 20
This code will probably be valid in C++0x if I understand
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1791.pdf correctly.
But gcc doesn't implement that behavior either as can be seen by uncommenting
the two lines in the snippet above.
Possibly related to: PR22047
/usr/local/4.2/bin/g++4.2.0 -v -c testTypedefFriend.cpp
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.2-svn/configure --prefix=/usr/local/4.2
--program-suffix=4.2.0 --enable-languages=c,c++,fortran
Thread model: posix
gcc version 4.2.0 20060918 (experimental)
/usr/local/4.2/libexec/gcc/i686-pc-linux-gnu/4.2.0/cc1plus -quiet -v
-D_GNU_SOURCE testTypedefFriend.cpp -quiet -dumpbase testTypedefFriend.cpp
-mtune=generic -auxbase testTypedefFriend -version -o /tmp/cc79A4Nh.s
ignoring nonexistent directory
"/usr/local/4.2/lib/gcc/i686-pc-linux-gnu/4.2.0/../../../../i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/4.2/lib/gcc/i686-pc-linux-gnu/4.2.0/../../../../include/c++/4.2.0
/usr/local/4.2/lib/gcc/i686-pc-linux-gnu/4.2.0/../../../../include/c++/4.2.0/i686-pc-linux-gnu
/usr/local/4.2/lib/gcc/i686-pc-linux-gnu/4.2.0/../../../../include/c++/4.2.0/backward
/usr/local/include
/usr/local/4.2/include
/usr/local/4.2/lib/gcc/i686-pc-linux-gnu/4.2.0/include
/usr/include
End of search list.
GNU C++ version 4.2.0 20060918 (experimental) (i686-pc-linux-gnu)
compiled by GNU C version 4.2.0 20060918 (experimental).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: febaaa122a095acbe60b52a3bc2a2eca
as -V -Qy -o testTypedefFriend.o /tmp/cc79A4Nh.s
GNU assembler version 2.16.91.0.5 (i586-suse-linux) using BFD version
2.16.91.0.5 20051219 (SUSE Linux)
--
Summary: accepts typedef as elaborated type specifier in friend
declaration
Product: gcc
Version: 3.3.6
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: gcc at pdoerfler dot com
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29123
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/29123] accepts typedef as elaborated type specifier in friend declaration
2006-09-18 9:26 [Bug c++/29123] New: accepts typedef as elaborated type specifier in friend declaration gcc at pdoerfler dot com
@ 2006-09-18 23:38 ` fang at csl dot cornell dot edu
2006-09-18 23:43 ` pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: fang at csl dot cornell dot edu @ 2006-09-18 23:38 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from fang at csl dot cornell dot edu 2006-09-18 23:38 -------
Motion to dupe as PR 21498.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29123
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/29123] accepts typedef as elaborated type specifier in friend declaration
2006-09-18 9:26 [Bug c++/29123] New: accepts typedef as elaborated type specifier in friend declaration gcc at pdoerfler dot com
2006-09-18 23:38 ` [Bug c++/29123] " fang at csl dot cornell dot edu
@ 2006-09-18 23:43 ` pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 3+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-09-18 23:43 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from pinskia at gcc dot gnu dot org 2006-09-18 23:42 -------
*** This bug has been marked as a duplicate of 21498 ***
*** This bug has been marked as a duplicate of 21498 ***
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29123
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2006-09-18 23:43 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-09-18 9:26 [Bug c++/29123] New: accepts typedef as elaborated type specifier in friend declaration gcc at pdoerfler dot com
2006-09-18 23:38 ` [Bug c++/29123] " fang at csl dot cornell dot edu
2006-09-18 23:43 ` pinskia at gcc dot gnu dot org
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