http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59044
Bug ID: 59044 Summary: Internal compiler error triggers when accessing a typedef in a specialized member class Product: gcc Version: 4.8.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: decaluwe.t at gmail dot com Created attachment 31180 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31180&action=edit Preprocessor output The following code triggers an internal compiler error when compiled with 'g++ bug.cpp' (the complete preprocessed file can be found in the attachment): /* ---- bug.cpp --------------------------------------- */ template <class T> class C { private: template <T a, T b> struct Implementation; template <T b> struct Implementation<0, b> { typedef void Typedef; }; public: typedef typename Implementation<0, 0>::Typedef Type; }; template class C<unsigned>; /* ---------------------------------------------------- */ The error message produced by g++ 4.8.1 (as found in the g++-4.8 package in the Ubuntu 13.10 repo, see below for build information): bug.cpp: In instantiation of ‘class C<unsigned int>’: bug.cpp:12:16: required from here bug.cpp:9:52: internal compiler error: in tsubst, at cp/pt.c:11313 typedef typename Implementation<0, 0>::Typedef Type; ^ This bug is still present in the gcc-snapshot package. However the code compiles fine in g++ 4.7.3 (as found in the g++-4.7 package). Additional information: GCC version: gcc version 4.8.1 (Ubuntu/Linaro 4.8.1-10ubuntu8) System type: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.8.1-10ubuntu8' --with-bugurl=file:///usr/share/doc/gcc-4.8/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.8 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.8 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.8-amd64 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.8-amd64 --with-arch-directory=amd64 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu