The following code does not compile as expected: template <class T0> class A { public: class B; }; template <class T0> class A<T0>::B { public: class C; }; template <class T0> class A<T0>::B::C { public: A<T0> &a; }; I originally tried with the redhat 9 gcc-3.2, which ICE'd. I then followed up by downloading and compiling vanilla gcc-3.3 from ftp.gnu.org. With the g++ from that compile, the above code produces: Foo.cpp:16: error: non-template type `A' used as a template Foo.cpp:16: error: ISO C++ forbids declaration of `a' with no type Since A most definitely is a template, I think this is wrong. I've seen other weird behaviour with more complex examples, but this seems like a good starting point.
I can confirm this on 3.3.1 (20030707) but on the mainline (20030715) it is already fixed. 3.0.4 accepted the code while 3.2.3 ICEd on it. Could someone test a later version of 3.3.1?
Subject: Bug 11546 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_3-branch Changes by: mmitchel@gcc.gnu.org 2003-07-20 04:49:03 Modified files: gcc/cp : ChangeLog pt.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/template: lookup1.C Log message: PR c++/11546 * pt.c (lookup_template_class): Treat TYPE_DECLs as TEMPLATE_DECLs where appropriate. PR c++/11546 * testsuite/g++.dg/template/lookup1.C: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.3076.2.184&r2=1.3076.2.185 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/pt.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.635.2.34&r2=1.635.2.35 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.2261.2.237&r2=1.2261.2.238 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/lookup1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=NONE&r2=1.1.2.1
Subject: Bug 11546 CVSROOT: /cvs/gcc Module name: gcc Changes by: mmitchel@gcc.gnu.org 2003-07-20 04:52:23 Modified files: gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/template: lookup1.C Log message: PR c++/11546 * g++.dg/template/lookup1.C: New test. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.2900&r2=1.2901 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/lookup1.C.diff?cvsroot=gcc&r1=1.1&r2=1.2
Fixed in GCC 3.3.1.
*** Bug 10749 has been marked as a duplicate of this bug. ***