[Bug c++/13648] New: [tree-ssa] offsetof() with a nested struct member fails to compile in a constant-expression

[Bug c++/13648] New: [tree-ssa] offsetof() with a nested struct member fails to compile in a constant-expression

[bryner at brianryner dot com]

This appears to be a new regression on the tree-ssa branch.  Writing:

const int i = offsetof(A, b.c);

gives this error:

error: `.' cannot appear in a constant-expression

The problem also appears to be C++-specific.

-- 
           Summary: [tree-ssa] offsetof() with a nested struct member fails
                    to compile in a constant-expression
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bryner at brianryner dot com
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13648

[Bug c++/13648] [tree-ssa] offsetof() with a nested struct member fails to compile in a constant-expression

[bryner at brianryner dot com]

------- Additional Comments From bryner at brianryner dot com  2004-01-11 21:29 -------
Created an attachment (id=5458)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=5458&action=view)
testcase

$ c++ -c -o test_offsetof.o test_offsetof.cpp
test_offsetof.cpp:11: error: `.' cannot appear in a constant-expression

$ c++ -v
Reading specs from /usr/gcc-ssa/lib/gcc/i686-pc-linux-gnu/3.5-tree-ssa/specs
Configured with: ../gcc/configure --prefix=/usr/gcc-ssa --enable-shared
--enable-threads=posix --disable-checking --with-system-zlib
--enable-__cxa_atexit --enable-languages=c,c++ --host=i686-pc-linux-gnu
Thread model: posix
gcc version 3.5-tree-ssa 20040110 (merged 20040102)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13648

[Bug c++/13648] [tree-ssa] offsetof() with a nested struct member fails to compile in a constant-expression

[bryner at brianryner dot com]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13648

[Bug c++/13648] [tree-ssa] offsetof() with a nested struct member fails to compile in a constant-expression

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-11 21:38 -------
A known bug, which will be fixed with a merge from the mainline.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2004-01-11 21:38:18
               date|                            |
   Target Milestone|---                         |tree-ssa


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13648

[Bug c++/13648] [tree-ssa] offsetof() with a nested struct member fails to compile in a constant-expression

[bryner at brianryner dot com]

------- Additional Comments From bryner at brianryner dot com  2004-01-11 21:43 -------
Hm... the fix was in cp/parser.c rev 1.145 on the mainline (2004/01/05), but as
of tree-ssa-20020619-merge-20040110, the fix is not on the ssa branch.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13648

[Bug c++/13648] [tree-ssa] [merge] offsetof() with a nested struct member fails to compile in a constant-expression

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-23 17:44 -------
You and aph are working on the next merge.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |dnovillo at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13648

[Bug c++/13648] [tree-ssa] [merge] offsetof() with a nested struct member fails to compile in a constant-expression

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-30 18:37 -------
Fixed by the merge.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13648