[Bug c++/54191] [C++11] SFINAE does not handle conversion to inaccessible base

["paolo at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54191

--- Comment #6 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2012-09-05 10:14:43 UTC ---
Author: paolo
Date: Wed Sep  5 10:14:37 2012
New Revision: 190969

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190969
Log:
/cp
2012-09-05  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/54191
    * search.c (lookup_base): Add tsubst_flags_t parameter.
    (adjust_result_of_qualified_name_lookup, check_final_overrider):
    Adjust.
    * name-lookup.c (do_class_using_decl): Adjust.
    * typeck2.c (binfo_or_else, build_scoped_ref, build_m_component_ref):
    Likewise.
    * cvt.c (cp_convert_to_pointer, convert_to_pointer_force,
    build_up_reference): Likewise.
    * rtti.c (build_dynamic_cast_1): Likewise.
    * tree.c (maybe_dummy_object): Likewise.
    * call.c (build_conditional_expr_1, build_over_call): Likewise.
    * cp-tree.h (UNIQUELY_DERIVED_FROM_P, PUBLICLY_UNIQUELY_DERIVED_P):
    Remove.
    (enum base_access_flags, ba_quiet): Remove.
    (uniquely_derived_from_p, publicly_uniquely_derived_p): Declare.
    * except.c (can_convert_eh): Adjust.
    * decl.c (grokdeclarator): Likewise.
    * typeck.c (comp_except_types, build_class_member_access_expr,
    finish_class_member_access_expr, get_member_function_from_ptrfunc,
    build_static_cast_1, get_delta_difference_1): Likewise.
    * class.c (build_base_path, convert_to_base, build_vtbl_ref_1,
    warn_about_ambiguous_bases): Likewise.
    (uniquely_derived_from_p, publicly_uniquely_derived_p): Define.

/testsuite
2012-09-05  Paolo Carlini  <paolo.carlini@oracle.com>

    PR c++/54191
    * g++.dg/cpp0x/sfinae39.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/cpp0x/sfinae39.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/call.c
    trunk/gcc/cp/class.c
    trunk/gcc/cp/cp-tree.h
    trunk/gcc/cp/cvt.c
    trunk/gcc/cp/decl.c
    trunk/gcc/cp/except.c
    trunk/gcc/cp/name-lookup.c
    trunk/gcc/cp/rtti.c
    trunk/gcc/cp/search.c
    trunk/gcc/cp/tree.c
    trunk/gcc/cp/typeck.c
    trunk/gcc/cp/typeck2.c
    trunk/gcc/testsuite/ChangeLog