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
