Created attachment 31183 [details] The preprocessed code This bug seems to be related to bug 59044 (http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59044). The following code when compiled with 'g++ spec.cpp' is rejected by gcc 4.8.1: /* ---- spec.cpp ---------------------------------------- */ namespace N { template <class T> struct C { template <class U, T t> struct Implementation {}; }; template <class T> template <T t> struct C<T>::Implementation<void, t> { static void method() {} }; } int main() { N::C<int>::Implementation<void, 0>::method(); } /* ---------------------------------------------------- */ The bug is only triggered when the second template argument is a non-type template argument dependent on the template argument of the enclosing class template. 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): spec.cpp: In function ‘int main()’: spec.cpp:18:5: error: ‘method’ is not a member of ‘N::C<int>::Implementation<void, 0>’ N::C<int>::Implementation<void, 0>::method(); ^ 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
This is indeed the same issue as 59044. *** This bug has been marked as a duplicate of bug 59044 ***
Author: jason Date: Thu Dec 5 22:46:36 2013 New Revision: 205720 URL: http://gcc.gnu.org/viewcvs?rev=205720&root=gcc&view=rev Log: PR c++/59044 PR c++/59052 * pt.c (most_specialized_class): Use the partially instantiated template for deduction. Drop the TMPL parameter. Added: trunk/gcc/testsuite/g++.dg/template/partial14.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/pt.c
Author: jason Date: Thu Dec 5 23:28:25 2013 New Revision: 205723 URL: http://gcc.gnu.org/viewcvs?rev=205723&root=gcc&view=rev Log: PR c++/59044 PR c++/59052 * pt.c (most_specialized_class): Use the partially instantiated template for deduction. Drop the TMPL parameter. Added: branches/gcc-4_8-branch/gcc/testsuite/g++.dg/template/partial14.C Modified: branches/gcc-4_8-branch/gcc/cp/ChangeLog branches/gcc-4_8-branch/gcc/cp/pt.c