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From: "Giovanni Bajo" <giovannibajo@libero.it> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: c++/10108: [3.4 regression] Error recovering problem: tree checking ICE: expected var_decl, have error_mark in tsubst_decl Date: Wed, 07 May 2003 11:06:00 -0000 [thread overview] Message-ID: <20030507110600.21055.qmail@sources.redhat.com> (raw) The following reply was made to PR c++/10108; it has been noted by GNATS. From: "Giovanni Bajo" <giovannibajo@libero.it> To: <gcc-gnats@gcc.gnu.org>, <gcc-bugs@gcc.gnu.org>, <nagano3@pop02.odn.ne.jp>, <nobody@gcc.gnu.org>, <gcc-prs@gcc.gnu.org> Cc: Subject: Re: c++/10108: [3.4 regression] Error recovering problem: tree checking ICE: expected var_decl, have error_mark in tsubst_decl Date: Wed, 7 May 2003 13:03:01 +0200 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10108 Reduced snippet is: --------------------------------------------------------------- template <class> struct Foo {}; template <class T> struct Bar : public Foo<T> { typedef Foo<T> base; typedef typename base::NON_EXISTENT INVALID_TYPE; template <class Q> Bar(Q q, INVALID_TYPE a) : base(a) {} }; template struct Bar<void>; --------------------------------------------------------------- pr10108.cpp: In instantiation of `Bar<void>': pr10108.cpp:17: instantiated from here pr10108.cpp:9: error: no type named `NON_EXISTENT' in `struct Foo<void>' pr10108.cpp:13: error: no type named `NON_EXISTENT' in `struct Foo<void>' pr10108.cpp:13: internal compiler error: tree check: expected var_decl, have error_mark in tsubst_decl, at cp/pt.c:5957 Please submit a full bug report, This is ICE on error recovery, confirmed with 3.4 CVS 20030503. The same preprocessed source also generates totally different ICE-on-illegal for 3.2 branch and 3.3 branch. I isolated and reported the 3.3 branch failure in c++/10594. Giovanni Bajo
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