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

2006-09-25 Thread 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.

2006-09-25 Thread 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


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