[Bug c++/29219] New: Template instantiation problem - Different behavior between gcc 4.0.x and gcc 3.4.x.

[Bug c++/29219] New: Template instantiation problem - Different behavior between gcc 4.0.x and gcc 3.4.x.

[etienne dot clement at autodesk dot com]

If you compile the attached code using g++ 4.0.x using the following command:

> g++ -v -save-temps -O3 -c bug.cpp

and look at the list of symbols in the bug.o file using the following command:

> nm bug.o

You will see that g++ generates a symbol for
'PxlMonoLimit<(PxlFormat)0>::limit'. IMHO, there is no reason to generate such
a symbol. g++ 3.4.x do not generate one.

Thank you,
Etienne Clement


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           Summary: Template instantiation problem - Different behavior
                    between gcc 4.0.x and gcc 3.4.x.
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: etienne dot clement at autodesk dot com
 GCC build triplet: powerpc-apple-darwin8
  GCC host triplet: i686-apple-darwin8
GCC target triplet: i686-apple-darwin8


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29219

[Bug c++/29219] Template instantiation problem - Different behavior between gcc 4.0.x and gcc 3.4.x.

[etienne dot clement at autodesk dot com]

------- Comment #1 from etienne dot clement at autodesk dot com  2006-09-25 20:19 -------
Created an attachment (id=12325)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=12325&action=view)
Program causing the problem.

1- Compile using the following command:

> g++ -v -save-temps -O3 -c bug.cpp

Use the following command to see that a symbol is generated for
'PxlMonoLimit<(PxlFormat)0>::limit'.

> nm bug.o

2- Compile using the following command:

> g++ -v -save-temps -O3 -DWORK -c bug.cpp

Use the following command to see that no symbol for
'PxlMonoLimit<(PxlFormat)0>::limit' is generated.

> nm bug.o


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29219

[Bug c++/29219] Template instantiation problem - Different behavior between gcc 4.0.x and gcc 3.4.x.

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2006-09-25 21:11 -------
This is not a bug.

THis is a dup of bug 20547.

*** This bug has been marked as a duplicate of 20547 ***


-- 

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=29219