The following invalid code snippet triggers a broken diagnostic on mainline:
======================================================================
template<typename...> struct A {};
template<template<typename...> class T, typename ...U> struct B
{
A<typename T<U>::X...> a;
};
B<A,int> b;
======================================================================
bug.cc: In instantiation of 'B<A, #'argument_pack_select' not supported by
dump_expr#<expression error> >':
bug.cc:8: instantiated from here
bug.cc:5: error: no type named 'X' in 'struct A<int>'
--
Summary: [4.3 regression] Broken diagnostic:
'argument_pack_select' not supported by dump_expr
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Keywords: diagnostic, monitored
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33214
