[Bug c++/39156] New: Internal compiler error on (invalid) use of undefined type in template function

[Bug c++/39156] New: Internal compiler error on (invalid) use of undefined type in template function

[cas43 at cs dot stanford dot edu]

This line of code causes an internal compiler when compiled with g++ without
options:

class B;template<class T> void foo(B& x) {x(0);}

Compiler:

Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.0.1/configure
--prefix=/usr/local/compilers/gcc-4.0.1-x86_64-x86_64 --enable-languages=c,c++
--enable-bootstrap
Thread model: posix
gcc version 4.0.1

Compiling with this newer version yields a meaningful diagnostic instead of an
internal error:

Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man
--infodir=/usr/share/info --enable-shared --enable-threads=posix
--enable-checking=release --with-system-zlib --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-libgcj-multifile
--enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk
--disable-dssi --enable-plugin
--with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --with-cpu=generic
--host=x86_64-redhat-linux
Thread model: posix
gcc version 4.1.2 20070626 (Red Hat 4.1.2-14)


-- 
           Summary: Internal compiler error on (invalid) use of undefined
                    type in template function
           Product: gcc
           Version: 4.1.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: cas43 at cs dot stanford dot edu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39156

[Bug c++/39156] Internal compiler error on (invalid) use of undefined type in template function

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2009-02-11 21:12 -------
You reported this against 4.0.1 and 4.0.x and 4.1.x are no longer being
supported (meaning no more 4.0.x or 4.1.x release).  Since it has been fixed in
4.1.2, I am closing this as fixed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.1.2
            Version|4.1.2                       |4.0.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39156