The following invalid line of code is accepted by mainline's C++ frontend:
======================================
typedef void int char void double X;
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The regression was introduced in June:
: Search converges between 2004-06-24-trunk (#471) and 2004-06-26-trunk (#472).
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Summary: [4.0 regression] multiple types in typedef not rejected
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Keywords: accepts-invalid, monitored
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18285
