blob: 0c7ab3320dc704b13f053e3f51db8ecc713ba57c [file] [log] [blame]
2014-08-26 Jason Merrill <jason@redhat.com>
PR c++/58624
* pt.c (tsubst_copy_and_build) [VAR_DECL]: Use TLS wrapper.
* semantics.c (finish_id_expression): Don't call TLS wrapper in a
template.
2014-08-25 Jason Merrill <jason@redhat.com>
PR c++/62129
* class.c (outermost_open_class): New.
* cp-tree.h: Declare it.
* decl.c (maybe_register_incomplete_var): Use it.
(complete_vars): Handle any constant variable.
* expr.c (cplus_expand_constant): Handle CONSTRUCTOR.
2014-08-22 Igor Zamyatin <igor.zamyatin@intel.com>
PR other/62008
* cp-array-notation.c (build_array_notation_ref): Added correct
handling of case with incorrect array.
2014-08-19 Jason Merrill <jason@redhat.com>
PR c++/61214
PR tree-optimization/62091
* decl2.c (decl_needed_p): Return true for virtual functions when
devirtualizing.
Backport:
PR c++/61566
* pt.c (instantiate_class_template_1): Ignore lambda on
CLASSTYPE_DECL_LIST.
(push_template_decl_real): A lambda is not primary.
* lambda.c (maybe_add_lambda_conv_op): Distinguish between being
currently in a function and the lambda living in a function.
Backport:
PR c++/60417
* init.c (build_vec_init): Set CONSTRUCTOR_IS_DIRECT_INIT on
init-list for trailing elements.
* typeck2.c (process_init_constructor_array): Likewise.
2014-08-07 Jason Merrill <jason@redhat.com>
PR c++/61959
* semantics.c (cxx_eval_bare_aggregate): Handle POINTER_PLUS_EXPR.
PR c++/61994
* init.c (build_vec_init): Leave atype an ARRAY_TYPE
if we're just returning an INIT_EXPR.
PR c++/60872
* call.c (standard_conversion): Don't try to apply restrict to void.
PR c++/58714
* tree.c (stabilize_expr): A stabilized prvalue is an xvalue.
2014-08-01 Igor Zamyatin <igor.zamyatin@intel.com>
* cp-array-notation.c (expand_an_in_modify_expr): Fix the misprint
in error output.
2014-08-01 Igor Zamyatin <igor.zamyatin@intel.com>
PR other/61963
* parser.c (cp_parser_array_notation): Added check for array_type.
2014-08-01 Igor Zamyatin <igor.zamyatin@intel.com>
PR middle-end/61455
* cp-array-notation.c (expand_array_notation_exprs): Handling of
DECL_EXPR improved. Changed handling for INIT_EXPR.
2014-07-16 Release Manager
* GCC 4.9.1 released.
2014-07-13 Jason Merrill <jason@redhat.com>
PR c++/58636
* call.c (build_list_conv): Don't try to build a list of references.
2014-07-10 Jason Merrill <jason@redhat.com>
PR c++/61661
* semantics.c (reduced_constant_expression_p): Handle CONSTRUCTOR.
2014-07-01 Paul Pluzhnikov <ppluzhnikov@google.com>
PR c++/58753
PR c++/58930
PR c++/58704
Backported from mainline
2014-05-20 Paolo Carlini <paolo.carlini@oracle.com>
* typeck2.c (digest_nsdmi_init): New.
* parser.c (cp_parser_late_parse_one_default_arg): Use it.
* init.c (get_nsdmi): Likewise.
* cp-tree.h (digest_nsdmi_init): Declare.
2014-06-30 Edward Smith-Rowland <3dw4rd@verizon.net>
PR c++/58781
PR c++/60249
PR c++/59867
* parser.c (cp_parser_userdef_string_literal()): Take a tree
not a cp_token*. (cp_parser_string_literal(): Don't hack
the token stream!
2014-06-30 Jason Merrill <jason@redhat.com>
PR c++/61647
* pt.c (type_dependent_expression_p): Check BASELINK_OPTYPE.
PR c++/61566
* mangle.c (decl_mangling_context): Look through a TEMPLATE_DECL.
2014-06-30 Jakub Jelinek <jakub@redhat.com>
Backported from mainline
2014-06-25 Jakub Jelinek <jakub@redhat.com>
* semantics.c (finish_omp_clauses): Make sure
OMP_CLAUSE_LINEAR_STEP has correct type.
2014-06-18 Jakub Jelinek <jakub@redhat.com>
* cp-gimplify.c (cxx_omp_finish_clause): Add a gimple_seq *
argument.
* cp-tree.h (cxx_omp_finish_clause): Adjust prototype.
2014-06-30 Jason Merrill <jason@redhat.com>
PR c++/61539
* pt.c (unify_one_argument): Type/expression mismatch just causes
deduction failure.
DR 1030
PR c++/51253
PR c++/61382
* cp-tree.h (CALL_EXPR_LIST_INIT_P): New.
* call.c (struct z_candidate): Add flags field.
(add_candidate): Add flags parm.
(add_function_candidate, add_conv_candidate, build_builtin_candidate)
(add_template_candidate_real): Pass it.
(build_over_call): Set CALL_EXPR_LIST_INIT_P.
* tree.c (build_aggr_init_expr): Copy it.
* semantics.c (simplify_aggr_init_expr): Copy it.
* cp-gimplify.c (cp_gimplify_expr): Handle it.
PR c++/61488
* pt.c (check_valid_ptrmem_cst_expr): Fix for template context.
PR c++/61500
* tree.c (lvalue_kind): Handle MEMBER_REF and DOTSTAR_EXPR.
2014-06-30 Igor Zamyatin <igor.zamyatin@intel.com>
PR middle-end/57541
* cp-array-notation.c (expand_sec_reduce_builtin):
Check that bultin argument is correct.
* call.c (build_cxx_call): Check for 0 arguments in builtin call.
2014-06-27 Jason Merrill <jason@redhat.com>
PR c++/61433
* error.c (dump_template_bindings): Don't tsubst in a clone.
2014-06-27 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/61614
* semantics.c (finish_compound_literal): Revert r204228.
2014-06-26 Adam Butcher <adam@jessamine.co.uk>
PR c++/61537
* parser.c (cp_parser_elaborated_type_specifier): Only consider template
parameter lists outside of function parameter scope.
2014-06-25 Jason Merrill <jason@redhat.com>
PR c++/61242
* call.c (build_aggr_conv): Ignore passed in flags.
(build_array_conv, build_complex_conv): Likewise.
2014-06-24 Jakub Jelinek <jakub@redhat.com>
* parser.c (cp_parser_omp_for_loop): For
#pragma omp parallel for simd move lastprivate clause from parallel
to for rather than simd.
2014-06-20 Jason Merrill <jason@redhat.com>
PR c++/59296
* call.c (add_function_candidate): Avoid special 'this' handling
if we have a ref-qualifier.
PR c++/61556
* call.c (build_over_call): Call build_this in template path.
2014-06-19 Jason Merrill <jason@redhat.com>
PR c++/59296
* call.c (add_function_candidate): Set LOOKUP_NO_RVAL_BIND
|LOOKUP_NO_TEMP_BIND for ref-qualifier handling.
PR c++/61507
* pt.c (resolve_overloaded_unification): Preserve
ARGUMENT_PACK_EXPLICIT_ARGS.
2014-06-18 Jason Merrill <jason@redhat.com>
PR c++/60605
* pt.c (check_default_tmpl_args): Check DECL_LOCAL_FUNCTION_P.
2014-06-18 Siva Chandra Reddy <sivachandra@google.com>
PR debug/57519
* class.c (handle_using_decl): Pass the correct scope to
cp_emit_debug_info_for_using.
2014-06-09 Jason Merrill <jason@redhat.com>
PR c++/61343
* decl.c (check_initializer): Maybe clear
DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P.
2014-06-04 Igor Zamyatin <igor.zamyatin@intel.com>
PR c/58942
* c-c++-common/cilk-plus/AN/pr58942.c: Check for correct handling of
the case with a pointer.
2014-06-02 Jason Merrill <jason@redhat.com>
PR c++/61134
* pt.c (pack_deducible_p): Handle canonicalization.
2014-05-21 Igor Zamyatin <igor.zamyatin@intel.com>
PR c/60189
* parser.c (cp_parser_postfix_expression): Move handling of cilk_sync
from here to...
(cp_parser_statement): ...here. Make sure only semicolon can go after
Cilk_sync.
2014-05-13 Jason Merrill <jason@redhat.com>
PR c++/61151
* lambda.c (is_this): Allow capture proxies too.
DR 5
PR c++/60019
* call.c (build_user_type_conversion_1): The copy-init temporary
is cv-unqualified.
2014-05-07 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/61083
* pt.c (convert_nontype_argument): Protect all the error calls
with complain & tf_error.
2014-05-06 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60999
* pt.c (maybe_begin_member_template_processing): Use
uses_template_parms.
2014-05-02 Jason Merrill <jason@redhat.com>
PR c++/60992
* lambda.c (lambda_capture_field_type): Wrap anything dependent
other than 'this' or a VLA.
(is_this): New.
* pt.c (tsubst_copy) [VAR_DECL]: Also build a new VAR_DECL if
the operand was static or constant.
2014-04-30 Jason Merrill <jason@redhat.com>
PR c++/60980
* init.c (build_value_init): Don't try to call an array constructor.
PR c++/60951
* typeck2.c (massage_init_elt): Use maybe_constant_init.
2014-04-24 Jakub Jelinek <jakub@redhat.com>
* parser.c (cp_parser_omp_atomic): Allow seq_cst before
atomic-clause, allow comma in between atomic-clause and
seq_cst.
2014-04-22 Jakub Jelinek <jakub@redhat.com>
PR c/59073
* parser.c (cp_parser_omp_parallel): If cp_parser_omp_for
fails, don't set OM_PARALLEL_COMBINED and return NULL.
2014-04-22 Release Manager
* GCC 4.9.0 released.
2014-04-15 Jakub Jelinek <jakub@redhat.com>
PR plugins/59335
* Make-lang.h (CP_PLUGIN_HEADERS): Add type-utils.h.
2014-04-10 Richard Biener <rguenther@suse.de>
Jakub Jelinek <jakub@redhat.com>
PR ipa/60761
* error.c (dump_decl) <case FUNCTION_DECL>: If
DECL_LANG_SPECIFIC is NULL, but DECL_ABSTRACT_ORIGIN is not,
recurse on DECL_ABSTRACT_ORIGIN instead of printing
<built-in>.
2014-04-09 Fabien Chêne <fabien@gcc.gnu.org>
* pt.c (check_template_variable): Check for the return of pedwarn
before emitting a note.
* parser.c (cp_parser_lambda_introducer): Likewise.
2014-04-08 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/59115
* pt.c (process_template_parm): For an invalid non-type parameter
only set TREE_TYPE to error_mark_node.
(push_inline_template_parms_recursive, comp_template_parms,
redeclare_class_template, coerce_template_template_parm,
coerce_template_template_parms, unify): Use error_operand_p.
2014-04-08 Nathan Sidwell <nathan@codesourcery.com>
* class.c (check_bases_and_members): Warn about non-virtual dtors
in public bases only. Check warn_ecpp before complaining about
non-polymorphic bases.
2014-04-04 Fabien Chêne <fabien@gcc.gnu.org>
* decl.c (duplicate_decls): Check for the return of warning_at
before emitting a note.
(warn_misplaced_attr_for_class_type): Likewise.
(check_tag_decl): Likewise.
2014-04-04 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58207
* semantics.c (sort_constexpr_mem_initializers): Robustify loop.
2014-04-04 Patrick Palka <patrick@parcs.ath.cx>
PR c++/44613
* semantics.c (add_stmt): Set STATEMENT_LIST_HAS_LABEL.
* decl.c (cp_finish_decl): Create a new BIND_EXPR before
instantiating a variable-sized type.
PR c++/21113
* decl.c (decl_jump_unsafe): Consider variably-modified decls.
2014-04-04 Fabien Chêne <fabien@gcc.gnu.org>
* class.c (find_abi_tags_r): Check for the return of warning
before emitting a note.
(one_inherited_ctor): Likewise.
2014-04-04 Fabien Chêne <fabien@gcc.gnu.org>
* decl.c (duplicate_decls): Check for the return of permerror
before emitting a note.
2014-04-03 Nathan Sidwell <nathan@codesourcery.com>
* class.c (accessible_nvdtor_p): New.
(check_bases): Don't check base destructor here ...
(check_bases_and_members): ... check them here. Trigger on
Wnon-virtual-dtor flag.
(finish_struct_1): Use accessible_nvdtor_p.
2014-04-01 Jason Merrill <jason@redhat.com>
* pt.c (process_partial_specialization): Say "not deducible"
rather than "not used". Use inform.
PR c++/60374
* pt.c (coerce_template_parms): Check that the pack expansion
pattern works with the first matching parameter.
2014-04-01 Fabien Chêne <fabien@gcc.gnu.org>
* init.c (perform_member_init): Homogenize uninitialized
diagnostics.
2014-04-01 Jason Merrill <jason@redhat.com>
PR c++/60708
* call.c (build_array_conv): Call complete_type.
PR c++/60713
* typeck2.c (PICFLAG_SIDE_EFFECTS): New.
(picflag_from_initializer): Return it.
(process_init_constructor): Handle it.
PR c++/60642
* decl2.c (is_late_template_attribute): Don't defer abi_tag.
* mangle.c (write_unqualified_name): Fix abi_tag on templates.
* pt.c (get_template_info): Handle NAMESPACE_DECL.
(most_general_template): Handle more kinds of template.
* tree.c (handle_abi_tag_attribute): Ignore abi_tag on template
instantiations and specializations.
2014-03-31 Patrick Palka <patrick@parcs.ath.cx>
PR c++/44859
* typeck.c (maybe_warn_about_returning_address_of_local): Unwrap
COMPONENT_REFs and ARRAY_REFs sooner.
2014-03-29 Adam Butcher <adam@jessamine.co.uk>
PR c++/60626
* parser.c (cp_parser_init_declarator): Handle erroneous generic type
usage in non-functions with pushed scope.
2014-03-28 Adam Butcher <adam@jessamine.co.uk>
PR c++/60573
* name-lookup.h (cp_binding_level): New transient field defining_class_p
to indicate whether a scope is in the process of defining a class.
* semantics.c (begin_class_definition): Set defining_class_p.
* name-lookup.c (leave_scope): Reset defining_class_p.
* parser.c (synthesize_implicit_template_parm): Use cp_binding_level::
defining_class_p rather than TYPE_BEING_DEFINED as the predicate for
unwinding to class-defining scope to handle the erroneous definition of
a generic function of an arbitrarily nested class within an enclosing
class.
2014-03-26 Fabien Chêne <fabien@gcc.gnu.org>
PR c++/52369
* method.c (walk_field_subobs): Improve the diagnostic
locations for both REFERENCE_TYPEs and non-static const members.
* init.c (diagnose_uninitialized_cst_or_ref_member): Use %q#D
instead of %qD to be consistent with the c++11 diagnostic.
2014-03-25 Jason Merrill <jason@redhat.com>
PR c++/60566
PR c++/58678
* class.c (build_vtbl_initializer): Handle abstract dtors here.
* search.c (get_pure_virtuals): Not here.
PR c++/60375
* parser.c (cp_parser_lambda_expression): Don't parse the body of
a lambda in unevaluated context.
PR c++/60628
* decl.c (create_array_type_for_decl): Complain about array of auto.
2014-03-25 Jakub Jelinek <jakub@redhat.com>
PR c++/60331
* semantics.c (potential_constant_expression_1): Handle
DECL_EXPR.
2014-03-24 Adam Butcher <adam@jessamine.co.uk>
PR c++/60627
* parser.c (cp_parser_parameter_declaration_clause): Prevent 'auto' from
introducing an implicit function template parameter within an explicit
instantiation.
2014-03-22 Jason Merrill <jason@redhat.com>
PR c++/60574
* decl.c (grokdeclarator): Change permerror about 'virtual auto'
to error.
2014-03-21 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60384
* name-lookup.c (push_class_level_binding_1): Check identifier_p
on the name argument.
2014-03-20 Jakub Jelinek <jakub@redhat.com>
PR c++/60572
* init.c (build_zero_init_1): Ignore fields with error_mark_node
type.
2014-03-19 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51474
* call.c (build_new_method_call_1): Handle pure virtuals called by
NSDMIs too.
2014-03-17 Adam Butcher <adam@jessamine.co.uk>
PR c++/60390
* parser.c (cp_parser_member_declaration): Don't allow
finish_fully_implicit_template to consider friend declarations to be
class member templates.
(synthesize_implicit_template_parm): Handling winding back through class
scope to the class being defined in order to inject a template argument
list.
PR c++/60391
* parser.c (cp_parser_skip_to_end_of_block_or_statement): Unwind generic
function scope as per cp_parser_skip_to_end_of_statement.
2014-03-17 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/59571
* typeck2.c (check_narrowing): Use fold_non_dependent_expr_sfinae.
2014-03-14 Jason Merrill <jason@redhat.com>
PR c++/60532
PR c++/58678
* search.c (get_pure_virtuals): Handle abstract dtor here.
(dfs_get_pure_virtuals): Not here.
PR c++/58678
* search.c (dfs_get_pure_virtuals): Treat the destructor of an
abstract class as pure.
2014-03-13 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60383
* pt.c (maybe_process_partial_specialization): Check return value
of check_specialization_namespace.
2014-03-13 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60254
* semantics.c (finish_static_assert): Call cxx_constant_value only
if require_potential_rvalue_constant_expression returns true.
2014-03-11 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60389
* method.c (get_inherited_ctor): New.
* cp-tree.h (get_inherited_ctor): Declare it.
* semantics.c (is_valid_constexpr_fn): Use it.
2014-03-10 Jason Merrill <jason@redhat.com>
PR c++/60367
* call.c (convert_default_arg): Remove special handling for
CONSTRUCTOR.
PR c++/53492
* parser.c (cp_parser_class_head): Also check PRIMARY_TEMPLATE_P
when deciding whether to call push_template_decl for a member class.
* pt.c (push_template_decl_real): Return after wrong levels error.
2014-03-08 Adam Butcher <adam@jessamine.co.uk>
PR c++/60033
* pt.c (tsubst_copy): When retrieving a capture pack from a generic
lambda, remove the lambda's own template argument list prior to fetching
the specialization.
PR c++/60393
* parser.c (cp_parser_parameter_declaration_clause): Move generic
function template unwinding on error into a more general location, ...
(cp_parser_skip_to_end_of_statement): ... here.
2014-03-07 Jason Merrill <jason@redhat.com>
* Make-lang.in (check_g++_parallelize): Split dg.exp.
* parser.c (cp_parser_type_id_1): Only allow 'auto' in C++1y if
we're in a trailing return type.
* typeck.c (comp_template_parms_position): 'auto' and
'decltype(auto)' are different from real template parms.
* parser.c (cp_parser_using_declaration): Consume the semicolon
after bare parameter pack error.
* cp-tree.h (REF_PARENTHESIZED_P): New.
* semantics.c (force_paren_expr): Set it.
* pt.c (do_auto_deduction): Check it.
(tsubst) [COMPONENT_REF]: Copy it.
* typeck.c (maybe_warn_about_useless_cast): Don't strip dereference.
* decl.c (create_array_type_for_decl): Only warn about invalid
C++1y VLA if flag_iso or warn_vla>0.
(grokdeclarator): Likewise.
* pt.c (tsubst): Likewise.
* semantics.c (finish_decltype_type): Likewise.
* typeck.c (cxx_sizeof_or_alignof_type): Likewise.
(cp_build_addr_expr_1): Likewise.
* init.c (build_new_1): Improve diagnostics.
2014-03-07 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58609
* decl.c (check_initializer): Return NULL_TREE after error;
consistently use inform.
2014-03-07 Paolo Carlini <paolo.carlini@oracle.com>
* decl.c (check_initializer): Remove dead code.
2014-03-06 Marek Polacek <polacek@redhat.com>
PR c/60197
* typeck.c (check_return_expr): Call contains_cilk_spawn_stmt instead
of checking tree code.
2014-03-06 Paolo Carlini <paolo.carlini@oracle.com>
* parser.c (cp_lexer_set_source_position): New.
(cp_parser_mem_initializer): Use it.
(cp_parser_postfix_open_square_expression): Likewise.
(cp_parser_parenthesized_expression_list): Likewise.
(cp_parser_new_initializer): Likewise.
(cp_parser_jump_statement): Likewise.
(cp_parser_initializer): Likewise.
(cp_parser_functional_cast): Likewise.
2014-03-05 Jason Merrill <jason@redhat.com>
PR c++/60409
* semantics.c (force_paren_expr): Only add a PAREN_EXPR to a
dependent expression.
PR c++/60361
* parser.c (cp_parser_template_id): Don't set up a CPP_TEMPLATE_ID
if re-parsing might succeed.
* semantics.c (finish_id_expression): Use of a parameter outside
the function body is a parse error.
* parser.c (cp_parser_mem_initializer): Set input_location
properly for init-list warning.
(cp_parser_postfix_open_square_expression): Likewise.
(cp_parser_parenthesized_expression_list): Likewise.
(cp_parser_new_initializer): Likewise.
(cp_parser_jump_statement): Likewise.
(cp_parser_initializer): Likewise.
(cp_parser_functional_cast): Likewise.
2014-03-04 Jason Merrill <jason@redhat.com>
PR c++/60417
* typeck2.c (process_init_constructor_record): Set
CONSTRUCTOR_IS_DIRECT_INIT on {} for omitted initializers.
PR c++/60415
PR c++/54359
* parser.c (cp_parser_direct_declarator): Set declarator to
cp_error_declarator on invalid qualified-id.
2014-03-04 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60376
* parser.c (cp_parser_using_declaration): Early return when
cp_parser_nested_name_specifier errors out.
2014-03-01 Adam Butcher <adam@jessamine.co.uk>
PR c++/60377
* parser.c (cp_parser_parameter_declaration_clause): Unwind generic
function scope on parse error in function parameter list.
2014-03-01 Paolo Carlini <paolo.carlini@oracle.com>
* method.c (implicitly_declare_fn): Remove redundant
DECL_TEMPLATE_RESULT and STRIP_TEMPLATE uses.
* semantics.c (is_instantiation_of_constexpr): Likewise.
* error.c (dump_function_decl): Likewise.
2014-03-01 Jason Merrill <jason@redhat.com>
PR c++/60379
* semantics.c (begin_maybe_infinite_loop): Use
fold_non_dependent_expr_sfinae.
2014-02-28 Jason Merrill <jason@redhat.com>
PR c++/58845
* typeck.c (cp_build_binary_op): Sorry on vector&&vector.
2014-02-28 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58610
* cp-tree.h (DECL_DELETED_FN): Use LANG_DECL_FN_CHECK.
* call.c (print_z_candidate): Remove STRIP_TEMPLATE use.
* lambda.c (maybe_add_lambda_conv_op): Likewise.
2014-02-27 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60253
* call.c (convert_arg_to_ellipsis): Return error_mark_node after
error_at.
2014-02-27 Jason Merrill <jason@redhat.com>
PR c++/60353
PR c++/55877
* decl2.c (tentative_decl_linkage): Don't mess with functions that
are not yet defined.
2014-02-26 Jason Merrill <jason@redhat.com>
PR c++/60347
PR lto/53808
* class.c (clone_function_decl): Don't note_vague_linkage_fn.
* init.c (build_vtbl_address): Do it here.
PR c++/59231
PR c++/11586
PR c++/14710
PR c++/57132
* pt.c (struct warning_sentinel): New.
(tsubst_copy_and_build): Use it instead of
c_inhibit_evaluation_warnings.
* typeck.c (maybe_warn_about_useless_cast): Remove
c_inhibit_evaluation_warnings check.
PR c++/54440
* pt.c (get_template_parm_index): New.
(fixed_parameter_pack_p_1, fixed_parameter_pack_p): New.
(process_template_parm): Allow bare packs in template template
parm template parms.
(coerce_template_parameter_pack): Handle fixed template template
parm packs and fixed packs not at the end of the parm list.
(coerce_template_parms): Handle template parm packs not at the end
of the parm list.
(gen_elem_of_pack_expansion_instantiation): Handle a decl expansion.
PR c++/60182
* pt.c (unify): Ignore alias templates when deducing a template
template parameter.
PR c++/60345
Revert:
DR 1571
* call.c (reference_binding): Recurse on user-defined conversion.
(convert_like_real) [ck_ref_bind]: Explain cv-qual mismatch.
2014-02-25 Jason Merrill <jason@redhat.com>
DR 1571
* call.c (reference_binding): Recurse on user-defined conversion.
(convert_like_real) [ck_ref_bind]: Explain cv-qual mismatch.
* call.c (print_conversion_rejection): Handle n_arg of -2.
(build_user_type_conversion_1): Pass it.
PR c++/55877
* decl2.c (no_linkage_error): Handle C++98 semantics.
(reset_type_linkage): Move from decl.c.
(reset_type_linkage_1, reset_type_linkage_2, bt_reset_linkage_1)
(bt_reset_linkage_2, reset_decl_linkage): New.
(tentative_decl_linkage): Factor out of expand_or_defer_fn_1.
(cp_write_global_declarations): Move condition into no_linkage_error.
* decl.c (grokfndecl, grokvardecl): Use no_linkage_error.
* semantics.c (expand_or_defer_fn_1): Factor out
tentative_decl_linkage.
* cp-tree.h: Adjust.
* decl2.c (finish_static_data_member_decl): Diagnose static data
member in unnamed class.
* class.c (finish_struct_anon_r): Avoid redundant diagnostic.
PR lto/53808
* class.c (clone_function_decl): Call note_vague_linkage_fn for
defaulted virtual dtor.
DR 1286
PR c++/60328
* pt.c (get_underlying_template): Fix equivalence calculation.
2014-02-25 Adam Butcher <adam@jessamine.co.uk>
PR c++/60311
* parser.c (function_being_declared_is_template_p): Return false when
processing a template parameter list.
(cp_parser_parameter_declaration_clause): Don't set
auto_is_implicit_function_template_parm_p when processing a
template parameter list.
* parser.c (synthesize_implicit_template_parm): Inject new template
argument list appropriately when a generic member function
of a class template is declared out-of-line.
PR c++/60065
* parser.c (cp_parser_direct_declarator): Don't save and
restore num_template_parameter_lists around call to
cp_parser_parameter_declaration_list.
(function_being_declared_is_template_p): New predicate.
(cp_parser_parameter_declaration_list): Use
function_being_declared_is_template_p as predicate for
inspecting current function template parameter list length
rather than num_template_parameter_lists.
2014-02-24 Jason Merrill <jason@redhat.com>
PR c++/60146
* pt.c (tsubst_omp_for_iterator): Don't let substitution of the
DECL_EXPR initialize a non-class iterator.
PR c++/60312
* parser.c (cp_parser_template_type_arg): Check for invalid 'auto'.
2014-02-21 Jason Merrill <jason@redhat.com>
PR c++/58170
* parser.c (cp_parser_type_name): Always check dependency.
(cp_parser_type_specifier_seq): Call
cp_parser_parse_and_diagnose_invalid_type_name.
PR c++/60108
* semantics.c (expand_or_defer_fn_1): Check DECL_DEFAULTED_FN.
PR c++/60185
* parser.c (cp_parser_default_argument): Clear
current_class_ptr/current_class_ref like tsubst_default_argument.
PR c++/60252
* lambda.c (maybe_resolve_dummy): Check lambda_function rather
than current_binding_level.
PR c++/60186
* typeck2.c (massage_init_elt): Call fold_non_dependent_expr_sfinae.
PR c++/60187
* parser.c (cp_parser_enum_specifier): Call
check_for_bare_parameter_packs.
PR c++/59347
* pt.c (tsubst_decl) [TYPE_DECL]: Don't try to instantiate an
erroneous typedef.
PR c++/60241
* pt.c (lookup_template_class_1): Update DECL_TEMPLATE_INSTANTIATIONS
of the partial instantiation, not the most general template.
(maybe_process_partial_specialization): Reassign everything on
that list.
PR c++/60216
* pt.c (register_specialization): Copy DECL_DELETED_FN to clones.
(check_explicit_specialization): Don't clone.
PR c++/60219
* pt.c (coerce_template_parms): Bail if argument packing fails.
PR c++/60224
* decl.c (cp_complete_array_type, maybe_deduce_size_from_array_init):
Don't get confused by a CONSTRUCTOR that already has a type.
PR c++/60227
* call.c (build_array_conv): Don't crash on VLA.
PR c++/60248
* mangle.c (mangle_decl): Don't make an alias for a TYPE_DECL.
PR c++/60252
* lambda.c (maybe_resolve_dummy): Don't try to capture this
in declaration context.
DR 1591
PR c++/60051
* pt.c (unify): Only unify if deducible. Handle 0-length list.
PR c++/60250
* parser.c (cp_parser_direct_declarator): Don't wrap a
type-dependent expression in a NOP_EXPR.
PR c++/60251
* lambda.c (is_normal_capture_proxy): Handle VLA capture.
PR c++/60167
PR c++/60222
PR c++/58606
* parser.c (cp_parser_template_argument): Restore dereference.
* pt.c (template_parm_to_arg): Dereference non-pack expansions too.
(process_partial_specialization): Handle deref.
(unify): Likewise.
2014-02-21 Adam Butcher <adam@jessamine.co.uk>
PR c++/60052
PR c++/60053
* parser.c (cp_parser_parameter_declaration_list): Correctly reset
implicit_template_scope upon leaving an out-of-line generic member
function definition.
2014-02-20 Kai Tietz <ktietz@redhat.com>
PR c++/58873
* parser.c (cp_parser_functional_cast): Treat NULL_TREE
valued type argument as error_mark_node.
PR c++/58835
* semantics.c (finish_fname): Handle error_mark_node.
2014-02-19 Jason Merrill <jason@redhat.com>
PR c++/60046
* pt.c (maybe_instantiate_noexcept): Don't instantiate exception
spec from template context.
2014-02-19 Jakub Jelinek <jakub@redhat.com>
PR debug/56563
* cp-objcp-common.c (cp_function_decl_explicit_p): Remove
FUNCTION_FIRST_USER_PARMTYPE (decl) != void_list_node check.
PR c++/60267
* pt.c (tsubst_expr): Handle ANNOTATE_EXPR.
2014-02-18 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60225
* semantics.c (ensure_literal_type_for_constexpr_object): Use
strip_array_types.
2014-02-18 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60215
* semantics.c (cxx_eval_constant_expression, [COMPONENT_REF]):
During error recovery allow_non_constant may be false.
2014-02-18 Adam Butcher <adam@jessamine.co.uk>
PR c++/60190
* parser.c (cp_parser_lambda_declarator_opt): Pop template parameter
scope whenever a template parameter list has been started, independent
of whether the function call operator was well-formed or not.
PR c++/60064
* parser.c (cp_parser_member_declaration): Pop fully implicit template
scope for generic friend declarations as well as for non-friends.
2014-02-12 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/60047
* method.c (implicitly_declare_fn): A constructor of a class with
virtual base classes isn't constexpr (7.1.5p4).
2014-02-05 Jan Hubicka <hubicka@ucw.cz
* parser.c (synthesize_implicit_template_parm): Use grow_tree_vec.
2014-02-05 Jakub Jelinek <jakub@redhat.com>
PR c++/58703
* parser.c (cp_parser_omp_declare_reduction): Save and free
declarator_obstack.
2014-02-03 Marc Glisse <marc.glisse@inria.fr>
PR c++/53017
PR c++/59211
* tree.c (handle_init_priority_attribute): Call default_conversion on
the attribute argument.
2014-02-03 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58871
* method.c (synthesized_method_walk): If vbases is non-null but
is_empty is true, likewise don't worry about the virtual bases.
2014-02-01 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/51219
* typeck2.c (process_init_constructor_record): Just skip unnamed
bit-fields.
2014-01-31 Jason Merrill <jason@redhat.com>
PR c++/59469
* pt.c (mark_decl_instantiated): Call mark_needed.
PR c++/58672
* decl2.c (handle_tls_init): Handle null init fn.
PR c++/55800
* decl2.c (get_tls_init_fn): Copy DECL_EXTERNAL from the variable.
2014-01-31 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/59082
* class.c (build_vfield_ref): Early return error_mark_node if
TYPE_VFIELD (type) is null.
(build_base_path): Check return value of build_vfield_ref.
2014-01-31 Jason Merrill <jason@redhat.com>
PR c++/59646
* call.c (convert_like_real) [ck_aggr]: Set TARGET_EXPR_LIST_INIT_P.
[ck_list]: Check for error_mark_node.
(build_aggr_conv): Set LOOKUP_NO_NARROWING and check_narrowing.
PR c++/57043
* pt.c (fn_type_unification): Don't do DEDUCE_EXACT check
during partial ordering.
2014-01-31 Marek Polacek <polacek@redhat.com>
PR c/59963
* typeck.c (build_function_call_vec): Add dummy arg_loc parameter.
2014-01-30 Jason Merrill <jason@redhat.com>
PR c++/57899
* cp-tree.h (struct saved_scope): Add x_local_specializations.
(local_specializations): New macro.
* pt.c (local_specializations): Remove variable.
2014-01-30 Richard Sandiford <rdsandiford@googlemail.com>
PR c++/58708
* parser.c (make_string_pack): Use double_int::from_buffer.
2014-01-30 Marek Polacek <polacek@redhat.com>
PR c/59940
* typeck.c (build_ptrmemfunc1): Call convert_and_check with
input_location.
* cvt.c (cp_convert_and_check): Call warnings_for_convert_and_check
with input_location.
* call.c (build_conditional_expr_1): Call unsafe_conversion_p with
loc parameter.
2014-01-30 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58843
* typeck.c (lookup_destructor): Check dtor_type for error_mark_node.
2014-01-30 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58649
* pt.c (lookup_template_class_1): Check start_enum return value
for error_mark_node.
2014-01-30 Paolo Carlini <paolo.carlini@oracle.com>
* decl.c (duplicate_decls, typename_hash, typename_compare):
Use TYPE_IDENTIFIER.
* error.c (dump_type): Likewise.
* mangle.c (dump_substitution_candidates): Likewise.
2014-01-30 Jason Merrill <jason@redhat.com>
PR c++/59633
* decl2.c (attributes_naming_typedef_ok): New.
* cp-tree.h: Declare it.
* decl.c (grokdeclarator): Check it.
* tree.c (no_linkage_check): Handle VECTOR_TYPE.
2014-01-29 Jason Merrill <jason@redhat.com>
PR c++/59707
* call.c (add_builtin_candidate): Catch dependent types.
PR c++/59989
* pt.c (expand_template_argument_pack): Correct
non_default_args_count calculation.
PR c++/58466
* pt.c (unify_pack_expansion): Call expand_template_argument_pack.
PR c++/59956
* friend.c (do_friend): Pass the TEMPLATE_DECL to add_friend if we
have a friend template in a class template.
* pt.c (tsubst_friend_function): Look through it.
(push_template_decl_real): A friend member template is
primary.
2014-01-29 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58846
* decl.c (get_dso_handle_node): Don't crash if dso_handle_node
== error_mark_node.
2014-01-29 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58674
* pt.c (instantiate_template_1): Check for error_mark_node the second
argument too.
2014-01-29 Jason Merrill <jason@redhat.com>
PR c++/59916
* optimize.c (maybe_thunk_body): Build a RETURN_EXPR for
cdtor_returns_this case.
PR c++/59315
* decl.c (cxx_maybe_build_cleanup): Call mark_used.
2014-01-29 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58702
* semantics.c (finish_omp_reduction_clause): Check type for
error_mark_node.
2014-01-28 Jason Merrill <jason@redhat.com>
PR c++/59791
* pt.c (tsubst_decl) [VAR_DECL]: Allow in unevaluated context.
(tsubst_copy): Use it if lookup fails.
PR c++/59818
* pt.c (tsubst_function_type): Make sure we keep the same function
quals.
PR c++/58701
* semantics.c (build_anon_member_initialization): Stop walking
when we run out of COMPONENT_REFs.
PR c++/58632
* decl.c (lookup_and_check_tag): Ignore template parameters if
scope == ts_current.
* pt.c (check_template_shadow): Don't complain about the injected
class name.
* decl.c (duplicate_decls): Tweak.
PR c++/53756
* mangle.c (write_unqualified_name): Handle operator auto.
2014-01-27 Jason Merrill <jason@redhat.com>
PR c++/59823
Core DR 1138
* call.c (reference_binding): Pass LOOKUP_NO_TEMP_BIND for
list-initialization. A conversion to rvalue ref that involves
an lvalue-rvalue conversion is bad.
(convert_like_real): Give helpful error message.
PR c++/54652
* decl.c (duplicate_decls): Always use oldtype for TYPE_DECL.
PR c++/58504
* pt.c (tsubst_copy_and_build) [TRAIT_EXPR]: Use tsubst for
types.
PR c++/58606
* pt.c (template_parm_to_arg): Call convert_from_reference.
(tsubst_template_arg): Don't strip reference refs.
PR c++/58639
* call.c (build_aggr_conv): Reject value-initialization of reference.
PR c++/58812
PR c++/58651
* call.c (convert_like_real): Give helpful error about excess braces
for ck_rvalue of scalar type.
Core DR 1288
* call.c (reference_binding): Only elide braces if the single
element is reference-related.
PR c++/58814
* typeck.c (cp_build_modify_expr): Make the RHS an rvalue before
stabilizing.
PR c++/58837
* typeck.c (cp_truthvalue_conversion): Use explicit comparison for
FUNCTION_DECL.
PR c++/59097
* decl.c (compute_array_index_type): Don't call
maybe_constant_value for a non-integral expression.
2014-01-24 Balaji V. Iyer <balaji.v.iyer@intel.com>
* call.c (magic_varargs_p): Replaced flag_enable_cilkplus with
flag_cilkplus.
* cp-gimplify.c (cp_genericize): Likewise.
* decl.c (grokfndecl): Likewise.
* parser.c (cp_parser_postfix_expression): Likewise.
(cp_parser_postfix_open_square_expression): Likewise.
(cp_parser_direct_declarator): Likewise.
(is_cilkplus_vector_p): Likewise.
(cp_parser_omp_clause_name): Likewise.
(cp_parser_omp_all_clauses): Likewise.
* pt.c (apply_late_template_attributes): Likewise.
* typeck.c (cp_build_array_ref): Likewise.
(cp_build_compound_expr): Likewise.
(check_return_expr): Likewise.
2014-01-24 Jason Merrill <jason@redhat.com>
PR c++/58550
* decl.c (grokdeclarator): Turn pedwarn about auto return type in
c++11 into error.
PR c++/59886
PR c++/59659
* typeck2.c (process_init_constructor_array): Don't create
RANGE_EXPR yet.
2014-01-24 Jakub Jelinek <jakub@redhat.com>
* typeck2.c (split_nonconstant_init_1): Fix num_split_elts
handling for RANGE_ARRAY case.
2014-01-24 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/57524
* name-lookup.c (push_using_directive): Use timevar_cond_start.
2014-01-23 Marek Polacek <polacek@redhat.com>
PR c/59846
* typeck.c (cp_build_binary_op): Pass location to shorten_compare.
2014-01-23 Marek Polacek <polacek@redhat.com>
PR c/58346
* typeck.c (pointer_diff): Give an error on arithmetic on pointer to
an empty aggregate.
2014-01-23 Jason Merrill <jason@redhat.com>
PR c++/55189
* cp-tree.h (struct language_function): Add infinite_loop and
infinite_loops.
(current_function_infinite_loop): New.
* semantics.c (begin_maybe_infinite_loop, end_maybe_infinite_loop)
(break_maybe_infinite_loop): New.
(finish_while_stmt_cond, finish_while_stmt, begin_do_stmt)
(finish_do_stmt, finish_for_cond, finish_for_stmt)
(begin_range_for_stmt): Use them.
* decl.c (finish_function): Don't warn about missing return
if current_function_infinite_loop.
* pt.c (instantiate_decl): Copy current_function_infinite_loop.
* parser.c (cp_parser_jump_statement): Call break_maybe_infinite_loop.
* call.c (build_op_delete_call): Use make_tree_vector and
release_tree_vector.
2014-01-23 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/58980
* parser.c (cp_parser_enum_specifier): Handle TYPENAME_TYPE as
nested_name_specifier.
2014-01-23 Balaji V. Iyer <balaji.v.iyer@intel.com>
* parser.c (cp_parser_direct_declarator): When Cilk Plus is enabled
see if there is an attribute after function decl. If so, then
parse them now.
(cp_parser_late_return_type_opt): Handle parsing of Cilk Plus SIMD
enabled function late parsing.
(cp_parser_gnu_attribute_list): Parse all the tokens for the vector
attribute for a SIMD-enabled function.
(cp_parser_omp_all_clauses): Skip parsing to the end of pragma when
the function is used by SIMD-enabled function (indicated by NULL
pragma token). Added 3 new clauses: PRAGMA_CILK_CLAUSE_MASK,
PRAGMA_CILK_CLAUSE_NOMASK and PRAGMA_CILK_CLAUSE_VECTORLENGTH
(cp_parser_cilk_simd_vectorlength): Modified this function to handle
vectorlength clause in SIMD-enabled function and #pragma SIMD's
vectorlength clause. Added a new bool parameter to differentiate
between the two.
(cp_parser_cilk_simd_fn_vector_attrs): New function.
(is_cilkplus_vector_p): Likewise.
(cp_parser_late_parsing_elem_fn_info): Likewise.
(cp_parser_omp_clause_name): Added a check for "mask", "nomask"
and "vectorlength" clauses when Cilk Plus is enabled.
(cp_parser_omp_clause_linear): Added a new parameter of type bool
and emit a sorry message when step size is a parameter.
* parser.h (cp_parser::cilk_simd_fn_info): New field.
* decl.c (grokfndecl): Added flag_enable_cilkplus along with
flag_openmp.
* pt.c (apply_late_template_attributes): Likewise.
2014-01-23 Jakub Jelinek <jakub@redhat.com>
PR middle-end/58809
* semantics.c (finish_omp_reduction_clause): Reject
BIT_AND_EXPR, BIT_IOR_EXPR and BIT_XOR_EXPR on COMPLEX_TYPEs.
2014-01-22 Ville Voutilainen <ville.voutilainen@gmail.com>
PR c++/59482
* parser.c (cp_parser_class_head): Push the class before parsing
the base-clause, pop after it.
2014-01-20 Eric Botcazou <ebotcazou@adacore.com>
* decl2.c (cpp_check): Revert prototype change.
2014-01-17 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/59270
PR c++/58811
* init.c (build_value_init_noctor): Don't pass error_mark_node to
build_value_init.
2014-01-17 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/59269
* init.c (build_value_init_noctor): Assert !TYPE_HAS_COMPLEX_DFLT
only when errorcount == 0.
2014-01-17 Marek Polacek <polacek@redhat.com>
PR c++/59838
* cvt.c (ocp_convert): Don't segfault on non-existing
ENUM_UNDERLYING_TYPE.
2014-01-16 Jason Merrill <jason@redhat.com>
PR c++/59821
* tree.c (bot_manip): Update the location of builtin_LINE and
builtin_FILE calls.
2014-01-14 Jason Merrill <jason@redhat.com>
PR c++/59659
* typeck2.c (massage_init_elt): New.
(process_init_constructor_record)
(process_init_constructor_union): Use it.
(process_init_constructor_array): Use it. Use RANGE_EXPR.
(split_nonconstant_init_1): Handle it.
* semantics.c (cxx_eval_vec_init_1): Use force_rvalue.
2014-01-09 Balaji V. Iyer <balaji.v.iyer@intel.com>
PR c++/59631
* parser.c (cp_parser_postfix_expression): Added a new if-statement
and replaced an existing if-statement with else-if statement.
Changed an existing error message wording to match the one from the C
parser.
2014-01-08 Jason Merrill <jason@redhat.com>
PR c++/59614
* class.c (abi_tag_data): Add tags field.
(check_abi_tags): Initialize it.
(find_abi_tags_r): Support collecting missing tags.
(mark_type_abi_tags): Don't look at template args.
(inherit_targ_abi_tags): New.
(check_bases_and_members): Use it.
* cp-tree.h (ABI_TAG_IMPLICIT): New.
* mangle.c (write_abi_tags): Check it.
2014-01-07 Jason Merrill <jason@redhat.com>
PR c++/58856
* pt.c (num_innermost_template_parms): New.
(get_underlying_template): Use it.
PR c++/58965
* mangle.c (write_guarded_var_name): Handle null DECL_NAME.
2014-01-07 Paolo Carlini <paolo.carlini@oracle.com>
* semantics.c (trait_expr_value, [CPTK_IS_BASE_OF]): Implement
the letter of 20.11.6 about Base and Derived naming the same
class type modulo cv-qualifiers.
2014-01-06 Adam Butcher <adam@jessamine.co.uk>
PR c++/59635
* lambda.c (maybe_add_lambda_conv_op): Handle marking conversion
function as unimplemented for generic lambdas with varargs.
PR c++/59636
* parser.c (cp_parser_template_parameter): Early out with
error_mark_node if parameter declaration was not parsed.
PR c++/59629
* parser.c (cp_parser_lambda_expression): Save/reset/restore
auto_is_implicit_function_template_parm_p around lambda body.
PR c++/59638
* parser.c (cp_parser_init_declarator): Undo fully implicit
template parameter list when declarator is not a function.
2014-01-03 Marc Glisse <marc.glisse@inria.fr>
PR c++/58950
* cvt.c (convert_to_void): Handle VEC_PERM_EXPR and VEC_COND_EXPR.
2014-01-03 Tobias Burnus <burnus@net-b.de>
PR c++/58567
* pt.c (tsubst_omp_for_iterator): Early return for error_mark_node.
2014-01-03 Paolo Carlini <paolo.carlini@oracle.com>
Core DR 1442
PR c++/59165
* parser.c (cp_parser_perform_range_for_lookup): Don't pass true
as include_std to perform_koenig_lookup.
(cp_parser_postfix_expression): Adjust.
* pt.c (tsubst_copy_and_build): Likewise.
* semantics.c (perform_koenig_lookup): Remove bool parameter.
(omp_reduction_lookup): Adjust.
* name-lookup.c (lookup_arg_dependent_1): Remove bool parameter.
(lookup_arg_dependent): Likewise.
(lookup_function_nonclass): Adjust.
* name-lookup.h: Adjust declaration.
* cp-tree.h: Likewise.
2014-01-02 Marc Glisse <marc.glisse@inria.fr>
PR c++/59087
* parser.c (cp_parser_userdef_numeric_literal): Mention
-fext-numeric-literals in the message.
2014-01-02 Marc Glisse <marc.glisse@inria.fr>
PR c++/59641
* call.c (build_conditional_expr_1): Check the return value of
force_rvalue.
2014-01-02 Marc Glisse <marc.glisse@inria.fr>
* call.c (convert_like_real): Check complain.
2014-01-02 Marc Glisse <marc.glisse@inria.fr>
PR c++/59378
* typeck.c (build_x_vec_perm_expr): Handle non-dependent arguments
in templates.
2014-01-02 Richard Sandiford <rdsandiford@googlemail.com>
Update copyright years
2014-01-02 Richard Sandiford <rdsandiford@googlemail.com>
* cp-array-notation.c, cp-cilkplus.c, vtable-class-hierarchy.c: Use
the standard form for the copyright notice.
Copyright (C) 2014 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.