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re PR c++/34055 (ICE with invalid specialization of variadic template) 

2008-01-29  Douglas Gregor  <doug.gregor@gmail.com>

	PR c++/34055
	PR c++/34103
	PR c++/34219
	PR c++/34606
	PR c++/34753
	PR c++/34754
	PR c++/34755
	PR c++/34919
	PR c++/34961
	* c-pretty-print.c (pp_c_type_qualifier_list): Don't try to print
	qualifiers for an ERROR_MARK_NODE or a NULL_TREE.


2008-01-29  Douglas Gregor  <doug.gregor@gmail.com>

	PR c++/34055
	PR c++/34103
	PR c++/34219
	PR c++/34606
	PR c++/34753
	PR c++/34754
	PR c++/34755
	PR c++/34919
	PR c++/34961
	* typeck.c (check_return_expr): Tweak call to
	check_for_bare_parameter_packs.
	* class.c (add_method): Be careful with error_mark_nodes.
	* cp-tree.h (check_for_bare_parameter_packs): Remove "*" from
	signature.
	* pt.c (struct find_parameter_pack_data): Remove
	SET_PACKS_TO_ERROR.
	(find_parameter_packs_r): Don't use SET_PACKS_TO_ERROR.
	(uses_parameter_packs): Don't set SET_PACKS_TO_ERROR.
	(make_pack_expansion): Ditto.
	(check_for_bare_parameter_packs): Parameter is now a tree, not a
	tree*.
	(process_template_parm): Tweak call to
	check_for_bare_parameter_packs.  
	(push_template_decl_real): Tweak calls to
	check_for_bare_parameter_packs. If bare parameter packs are found
	in the list of exceptions, clear out that list after giving an
	error.
	* semantics.c (finish_cond): Tweak call to
	check_for_bare_parameter_packs.
	(finish_expr_stmt): Ditto.
	(finish_for_expr): Ditto.
	(finish_switch_cond): Ditto.
	(finish_mem_initializers): Ditto.
	(finish_member_declaration): Ditto.
	(finish_static_assert): Check for bare parameter packs in the
	condition.
	* decl2.c (cplus_decl_attributes): Check for bare parameter packs in the
	attributes of a declaration.
	* parser.c (cp_parser_using_declaration): Tweak call to
	check_for_bare_parameter_packs.
	(cp_parser_base_clause): Ditto.
	

2008-01-29  Douglas Gregor  <doug.gregor@gmail.com>

	PR c++/34055
	PR c++/34103
	PR c++/34219
	PR c++/34606
	PR c++/34753
	PR c++/34754
	PR c++/34755
	PR c++/34919
	PR c++/34961
	* g++.dg/cpp0x/vt-34219-2.C: New.
	* g++.dg/cpp0x/pr32126.C: Tweak expected error messages.
	* g++.dg/cpp0x/vt-34961.C: New.
	* g++.dg/cpp0x/vt-34055.C: Tweak error messages; add new test
	cases from the re-opened PR.
	* g++.dg/cpp0x/vt-34753.C: New.
	* g++.dg/cpp0x/vt-34919.C: New.
	* g++.dg/cpp0x/vt-34754.C: New.
	* g++.dg/cpp0x/vt-34606.C: New.
	* g++.dg/cpp0x/vt-34219.C: New.
	* g++.dg/cpp0x/pr32125.C: Tweak expected error messages.
	* g++.dg/cpp0x/vt-34755.C: New.
	* g++.dg/cpp0x/pr31438.C: Ditto.
	* g++.dg/cpp0x/variadic81.C: Ditto.

From-SVN: r131938
This commit is contained in:
Douglas Gregor 2008-01-29 13:59:59 +00:00 committed by Doug Gregor
parent f66816e872
commit 7b3e2d465d
25 changed files with 256 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
gcc/ChangeLog
View File

@ -1,3 +1,17 @@
2008-01-29 Douglas Gregor <doug.gregor@gmail.com>
PR c++/34055
PR c++/34103
PR c++/34219
PR c++/34606
PR c++/34753
PR c++/34754
PR c++/34755
PR c++/34919
PR c++/34961
* c-pretty-print.c (pp_c_type_qualifier_list): Don't try to print
qualifiers for an ERROR_MARK_NODE or a NULL_TREE.
2008-01-28 Andy Hutchinson <hutchinsonandy@netscape.net>
PR target/34412

5
gcc/c-pretty-print.c
View File

@ -225,7 +225,10 @@ pp_c_space_for_pointer_operator (c_pretty_printer *pp, tree t)
void
pp_c_type_qualifier_list (c_pretty_printer *pp, tree t)
{
int qualifiers;
int qualifiers;
if (!t || t == error_mark_node)
return;
if (!TYPE_P (t))
t = TREE_TYPE (t);

44
gcc/cp/ChangeLog
View File

@ -1,3 +1,47 @@
2008-01-29 Douglas Gregor <doug.gregor@gmail.com>
PR c++/34055
PR c++/34103
PR c++/34219
PR c++/34606
PR c++/34753
PR c++/34754
PR c++/34755
PR c++/34919
PR c++/34961
* typeck.c (check_return_expr): Tweak call to
check_for_bare_parameter_packs.
* class.c (add_method): Be careful with error_mark_nodes.
* cp-tree.h (check_for_bare_parameter_packs): Remove "*" from
signature.
* pt.c (struct find_parameter_pack_data): Remove
SET_PACKS_TO_ERROR.
(find_parameter_packs_r): Don't use SET_PACKS_TO_ERROR.
(uses_parameter_packs): Don't set SET_PACKS_TO_ERROR.
(make_pack_expansion): Ditto.
(check_for_bare_parameter_packs): Parameter is now a tree, not a
tree*.
(process_template_parm): Tweak call to
check_for_bare_parameter_packs.
(push_template_decl_real): Tweak calls to
check_for_bare_parameter_packs. If bare parameter packs are found
in the list of exceptions, clear out that list after giving an
error.
* semantics.c (finish_cond): Tweak call to
check_for_bare_parameter_packs.
(finish_expr_stmt): Ditto.
(finish_for_expr): Ditto.
(finish_switch_cond): Ditto.
(finish_mem_initializers): Ditto.
(finish_member_declaration): Ditto.
(finish_static_assert): Check for bare parameter packs in the
condition.
* decl2.c (cplus_decl_attributes): Check for bare parameter packs in the
attributes of a declaration.
* parser.c (cp_parser_using_declaration): Tweak call to
check_for_bare_parameter_packs.
(cp_parser_base_clause): Ditto.
2008-01-28 Jason Merrill <jason@redhat.com>
PR c++/35007

2
gcc/cp/class.c
View File

@ -1040,6 +1040,8 @@ add_method (tree type, tree method, tree using_decl)
coming from the using class in overload resolution. */
if (! DECL_STATIC_FUNCTION_P (fn)
&& ! DECL_STATIC_FUNCTION_P (method)
&& TREE_TYPE (TREE_VALUE (parms1)) != error_mark_node
&& TREE_TYPE (TREE_VALUE (parms2)) != error_mark_node
&& (TYPE_QUALS (TREE_TYPE (TREE_VALUE (parms1)))
!= TYPE_QUALS (TREE_TYPE (TREE_VALUE (parms2)))))
continue;

2
gcc/cp/cp-tree.h
View File

@ -4435,7 +4435,7 @@ extern int comp_template_parms (const_tree, const_tree);
extern bool uses_parameter_packs (tree);
extern bool template_parameter_pack_p (const_tree);
extern tree make_pack_expansion (tree);
extern bool check_for_bare_parameter_packs (tree*);
extern bool check_for_bare_parameter_packs (tree);
extern tree get_template_info (tree);
extern int template_class_depth (tree);
extern int is_specialization_of (tree, tree);

6
gcc/cp/decl.c
View File

@ -5388,6 +5388,12 @@ cp_finish_decl (tree decl, tree init, bool init_const_expr_p,
type_dependent_p = dependent_type_p (type);
if (check_for_bare_parameter_packs (init))
{
init = NULL_TREE;
DECL_INITIAL (decl) = NULL_TREE;
}
if (init && init_const_expr_p)
{
DECL_INITIALIZED_BY_CONSTANT_EXPRESSION_P (decl) = 1;

3
gcc/cp/decl2.c
View File

@ -1107,6 +1107,9 @@ cplus_decl_attributes (tree *decl, tree attributes, int flags)
if (processing_template_decl)
{
if (check_for_bare_parameter_packs (attributes))
return;
save_template_attributes (&attributes, decl);
if (attributes == NULL_TREE)
return;

6
gcc/cp/parser.c
View File

@ -11776,7 +11776,7 @@ cp_parser_using_declaration (cp_parser* parser,
/* Create the USING_DECL. */
decl = do_class_using_decl (parser->scope, identifier);
if (check_for_bare_parameter_packs (&decl))
if (check_for_bare_parameter_packs (decl))
return false;
else
/* Add it to the list of members in this class. */
@ -11787,7 +11787,7 @@ cp_parser_using_declaration (cp_parser* parser,
decl = cp_parser_lookup_name_simple (parser, identifier);
if (decl == error_mark_node)
cp_parser_name_lookup_error (parser, identifier, decl, NULL);
else if (check_for_bare_parameter_packs (&decl))
else if (check_for_bare_parameter_packs (decl))
return false;
else if (!at_namespace_scope_p ())
do_local_using_decl (decl, qscope, identifier);
@ -15327,7 +15327,7 @@ cp_parser_base_clause (cp_parser* parser)
TREE_VALUE (base) = make_pack_expansion (TREE_VALUE (base));
if (!check_for_bare_parameter_packs (&TREE_VALUE (base)))
if (!check_for_bare_parameter_packs (TREE_VALUE (base)))
{
TREE_CHAIN (base) = bases;
bases = base;

61
gcc/cp/pt.c
View File

@ -2434,10 +2434,6 @@ struct find_parameter_pack_data
/* Set of AST nodes that have been visited by the traversal. */
struct pointer_set_t *visited;
/* Whether we should replace parameter packs with
ERROR_MARK_NODE. Used by check_for_bare_parameter_packs. */
bool set_packs_to_error;
};
/* Identifies all of the argument packs that occur in a template
@ -2452,15 +2448,13 @@ find_parameter_packs_r (tree *tp, int *walk_subtrees, void* data)
(struct find_parameter_pack_data*)data;
bool parameter_pack_p = false;
/* Don't visit nodes twice, except when we're clearing out parameter
packs. */
/* Don't visit nodes twice. */
if (pointer_set_contains (ppd->visited, *tp))
{
*walk_subtrees = 0;
return NULL_TREE;
}
recheck:
/* Identify whether this is a parameter pack or not. */
switch (TREE_CODE (t))
{
@ -2485,16 +2479,6 @@ recheck:
}
break;
case POINTER_TYPE:
if (ppd->set_packs_to_error)
/* Pointer types are shared, set in that case the outermost
POINTER_TYPE to error_mark_node rather than the parameter pack. */
{
t = TREE_TYPE (t);
goto recheck;
}
break;
default:
/* Not a parameter pack. */
break;
@ -2504,19 +2488,10 @@ recheck:
{
/* Add this parameter pack to the list. */
*ppd->parameter_packs = tree_cons (NULL_TREE, t, *ppd->parameter_packs);
if (ppd->set_packs_to_error)
/* The caller requested that we set the parameter packs to
ERROR_MARK_NODE so that they will not trip up the compiler
later. The caller is responsible for emitting an error. */
*tp = error_mark_node;
else
/* Make sure we do not visit this node again. */
pointer_set_insert (ppd->visited, *tp);
}
else
/* Make sure we do not visit this node again. */
pointer_set_insert (ppd->visited, *tp);
/* Make sure we do not visit this node again. */
pointer_set_insert (ppd->visited, *tp);
if (TYPE_P (t))
cp_walk_tree (&TYPE_CONTEXT (t),
@ -2602,7 +2577,6 @@ uses_parameter_packs (tree t)
struct find_parameter_pack_data ppd;
ppd.parameter_packs = &parameter_packs;
ppd.visited = pointer_set_create ();
ppd.set_packs_to_error = false;
cp_walk_tree (&t, &find_parameter_packs_r, &ppd, NULL);
pointer_set_destroy (ppd.visited);
return parameter_packs != NULL_TREE;
@ -2621,8 +2595,6 @@ make_pack_expansion (tree arg)
bool for_types = false;
struct find_parameter_pack_data ppd;
ppd.set_packs_to_error = false;
if (!arg || arg == error_mark_node)
return arg;
@ -2744,21 +2716,20 @@ make_pack_expansion (tree arg)
Returns TRUE and emits an error if there were bare parameter packs,
returns FALSE otherwise. */
bool
check_for_bare_parameter_packs (tree* t)
check_for_bare_parameter_packs (tree t)
{
tree parameter_packs = NULL_TREE;
struct find_parameter_pack_data ppd;
if (!processing_template_decl || !t || !*t || *t == error_mark_node)
if (!processing_template_decl || !t || t == error_mark_node)
return false;
if (TREE_CODE (*t) == TYPE_DECL)
t = &TREE_TYPE (*t);
if (TREE_CODE (t) == TYPE_DECL)
t = TREE_TYPE (t);
ppd.parameter_packs = &parameter_packs;
ppd.visited = pointer_set_create ();
ppd.set_packs_to_error = false;
cp_walk_tree (t, &find_parameter_packs_r, &ppd, NULL);
cp_walk_tree (&t, &find_parameter_packs_r, &ppd, NULL);
pointer_set_destroy (ppd.visited);
if (parameter_packs)
@ -2789,8 +2760,7 @@ check_for_bare_parameter_packs (tree* t)
tree. */
ppd.parameter_packs = &parameter_packs;
ppd.visited = pointer_set_create ();
ppd.set_packs_to_error = true;
cp_walk_tree (t, &find_parameter_packs_r, &ppd, NULL);
cp_walk_tree (&t, &find_parameter_packs_r, &ppd, NULL);
pointer_set_destroy (ppd.visited);
return true;
@ -3055,7 +3025,7 @@ process_template_parm (tree list, tree parm, bool is_non_type,
{
/* This template parameter is not a parameter pack, but it
should be. Complain about "bare" parameter packs. */
check_for_bare_parameter_packs (&TREE_TYPE (parm));
check_for_bare_parameter_packs (TREE_TYPE (parm));
/* Recover by calling this a parameter pack. */
is_parameter_pack = true;
@ -3895,7 +3865,7 @@ push_template_decl_real (tree decl, bool is_friend)
while (arg && argtype)
{
if (!FUNCTION_PARAMETER_PACK_P (arg)
&& check_for_bare_parameter_packs (&TREE_TYPE (arg)))
&& check_for_bare_parameter_packs (TREE_TYPE (arg)))
{
/* This is a PARM_DECL that contains unexpanded parameter
packs. We have already complained about this in the
@ -3911,14 +3881,15 @@ push_template_decl_real (tree decl, bool is_friend)
/* Check for bare parameter packs in the return type and the
exception specifiers. */
if (check_for_bare_parameter_packs (&TREE_TYPE (type)))
if (check_for_bare_parameter_packs (TREE_TYPE (type)))
/* Errors were already issued, set return type to int
as the frontend doesn't expect error_mark_node as
the return type. */
TREE_TYPE (type) = integer_type_node;
check_for_bare_parameter_packs (&TYPE_RAISES_EXCEPTIONS (type));
if (check_for_bare_parameter_packs (TYPE_RAISES_EXCEPTIONS (type)))
TYPE_RAISES_EXCEPTIONS (type) = NULL_TREE;
}
else if (check_for_bare_parameter_packs (&TREE_TYPE (decl)))
else if (check_for_bare_parameter_packs (TREE_TYPE (decl)))
return error_mark_node;
if (is_partial)

17
gcc/cp/semantics.c
View File

@ -508,7 +508,7 @@ finish_cond (tree *cond_p, tree expr)
if (TREE_CODE (cond) == DECL_EXPR)
expr = cond;
if (check_for_bare_parameter_packs (&expr))
if (check_for_bare_parameter_packs (expr))
*cond_p = error_mark_node;
}
*cond_p = expr;
@ -619,7 +619,7 @@ finish_expr_stmt (tree expr)
else if (!type_dependent_expression_p (expr))
convert_to_void (build_non_dependent_expr (expr), "statement");
if (check_for_bare_parameter_packs (&expr))
if (check_for_bare_parameter_packs (expr))
expr = error_mark_node;
/* Simplification of inner statement expressions, compound exprs,
@ -877,7 +877,7 @@ finish_for_expr (tree expr, tree for_stmt)
else if (!type_dependent_expression_p (expr))
convert_to_void (build_non_dependent_expr (expr), "3rd expression in for");
expr = maybe_cleanup_point_expr_void (expr);
if (check_for_bare_parameter_packs (&expr))
if (check_for_bare_parameter_packs (expr))
expr = error_mark_node;
FOR_EXPR (for_stmt) = expr;
}
@ -974,7 +974,7 @@ finish_switch_cond (tree cond, tree switch_stmt)
cond = index;
}
}
if (check_for_bare_parameter_packs (&cond))
if (check_for_bare_parameter_packs (cond))
cond = error_mark_node;
finish_cond (&SWITCH_STMT_COND (switch_stmt), cond);
SWITCH_STMT_TYPE (switch_stmt) = orig_type;
@ -1393,7 +1393,7 @@ finish_mem_initializers (tree mem_inits)
bound as part of the TREE_PURPOSE. See
make_pack_expansion for more information. */
if (TREE_CODE (TREE_PURPOSE (mem)) != TYPE_PACK_EXPANSION
&& check_for_bare_parameter_packs (&TREE_VALUE (mem)))
&& check_for_bare_parameter_packs (TREE_VALUE (mem)))
TREE_VALUE (mem) = error_mark_node;
}
@ -2331,9 +2331,9 @@ finish_member_declaration (tree decl)
/* Check for bare parameter packs in the member variable declaration. */
if (TREE_CODE (decl) == FIELD_DECL)
{
if (check_for_bare_parameter_packs (&TREE_TYPE (decl)))
if (check_for_bare_parameter_packs (TREE_TYPE (decl)))
TREE_TYPE (decl) = error_mark_node;
if (check_for_bare_parameter_packs (&DECL_ATTRIBUTES (decl)))
if (check_for_bare_parameter_packs (DECL_ATTRIBUTES (decl)))
DECL_ATTRIBUTES (decl) = NULL_TREE;
}
@ -4025,6 +4025,9 @@ void
finish_static_assert (tree condition, tree message, location_t location,
bool member_p)
{
if (check_for_bare_parameter_packs (condition))
condition = error_mark_node;
if (type_dependent_expression_p (condition)
|| value_dependent_expression_p (condition))
{

2
gcc/cp/typeck.c
View File

@ -6605,7 +6605,7 @@ check_return_expr (tree retval, bool *no_warning)
if (processing_template_decl)
{
current_function_returns_value = 1;
if (check_for_bare_parameter_packs (&retval))
if (check_for_bare_parameter_packs (retval))
retval = error_mark_node;
return retval;
}

26
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,29 @@
2008-01-29 Douglas Gregor <doug.gregor@gmail.com>
PR c++/34055
PR c++/34103
PR c++/34219
PR c++/34606
PR c++/34753
PR c++/34754
PR c++/34755
PR c++/34919
PR c++/34961
* g++.dg/cpp0x/vt-34219-2.C: New.
* g++.dg/cpp0x/pr32126.C: Tweak expected error messages.
* g++.dg/cpp0x/vt-34961.C: New.
* g++.dg/cpp0x/vt-34055.C: Tweak error messages; add new test
cases from the re-opened PR.
* g++.dg/cpp0x/vt-34753.C: New.
* g++.dg/cpp0x/vt-34919.C: New.
* g++.dg/cpp0x/vt-34754.C: New.
* g++.dg/cpp0x/vt-34606.C: New.
* g++.dg/cpp0x/vt-34219.C: New.
* g++.dg/cpp0x/pr32125.C: Tweak expected error messages.
* g++.dg/cpp0x/vt-34755.C: New.
* g++.dg/cpp0x/pr31438.C: Ditto.
* g++.dg/cpp0x/variadic81.C: Ditto.
2008-01-29 Richard Sandiford <rsandifo@nildram.co.uk>
* g++.dg/torture/pr34641.C: Put the dg-do first.

6
gcc/testsuite/g++.dg/cpp0x/pr31438.C
View File

@ -1,9 +1,9 @@
// { dg-options "-std=gnu++0x" }
template<typename> struct A;
template<typename T, typename... U> struct A<T(U)> // { dg-error "parameter packs|U|not used|U" }
{
template<typename X> A(X);
template<typename T, typename... U> struct A<T(U)> // { dg-error "parameter packs|U" }
{ // { dg-error "parameter packs|U" }
template<typename X> A(X); // { dg-error "parameter packs|U" }
};
A<void(int)> a(0); // { dg-error "incomplete type" }

6
gcc/testsuite/g++.dg/cpp0x/pr32125.C
View File

@ -1,8 +1,8 @@
// { dg-options "-std=c++0x" }
template<typename...> struct A;
template<typename...T> struct A<T*> // { dg-error "not expanded|T|not used|T" }
{
A();
template<typename...T> struct A<T*> // { dg-error "not expanded|T" }
{ // { dg-error "not expanded|T" }
A(); // { dg-error "not expanded|T" }
A(T); // { dg-error "not expanded|T" }
};

4
gcc/testsuite/g++.dg/cpp0x/pr32126.C
View File

@ -1,8 +1,8 @@
// { dg-options "-std=c++0x" }
template<typename...> struct A;
template<typename...T> struct A<T> // { dg-error "not expanded|T|not used|T" }
{
template<typename...T> struct A<T> // { dg-error "not expanded|T|" }
{ // { dg-error "not expanded|T|" }
static int i;
};

2
gcc/testsuite/g++.dg/cpp0x/variadic81.C
View File

@ -4,7 +4,7 @@
template<typename> struct A;
template<typename... T> struct A<T*> // { dg-error "not expanded|T|not used|T" }
{
{ // { dg-error "not expanded|T|not used|T" }
struct B;
};

29
gcc/testsuite/g++.dg/cpp0x/vt-34055.C
View File

@ -1,10 +1,31 @@
// { dg-options "-std=c++0x" }
// PR c++/34055
template<typename...> struct A; // { dg-error "declaration" }
template<typename...> struct A;
template<typename...T> struct A<T*> // { dg-error "parameter packs|T" }
{
void foo();
{ // { dg-error "parameter packs|T" }
void foo(); // { dg-error "parameter packs|T|candidate" }
};
template<typename...T> void A<T*>::foo() {} // { dg-error "invalid use" }
template<typename...T> void A<T*>::foo() {} // { dg-error "does not match" }
template<typename...> struct B;
template<typename...T> struct B<T&> // { dg-error "parameter packs|T" }
{ // { dg-error "parameter packs|T" }
void foo(); // { dg-error "parameter packs|T" }
};
template<typename...T> void B<T&>::foo() {} // { dg-error "does not match" }
template<typename...> struct C;
template<typename...T> struct C<T()> // { dg-error "parameter packs|T" }
{ // { dg-error "parameter packs|T" }
void foo(); // { dg-error "parameter packs|T" }
};
template<typename...T> void C<T()>::foo() {} // { dg-error "does not match" }

22
gcc/testsuite/g++.dg/cpp0x/vt-34219-2.C Normal file
View File

@ -0,0 +1,22 @@
// { dg-options "-std=c++0x" }
template<template<typename... T> class Comp, typename... T> void f( T... Value)
{
static_assert( Comp<T>::value > 0, "" ); // { dg-error "parameter packs|T" }
}
template<template<typename... T> class Comp, typename... T> void g( T... Value)
{
static_assert( Comp<T...>::value > 0, "" );
}
template <typename... T>
struct Foo
{
static const int value=1;
};
int main()
{
f<Foo>( 2 );
g<Foo>( 2 );
}

15
gcc/testsuite/g++.dg/cpp0x/vt-34219.C Normal file
View File

@ -0,0 +1,15 @@
// { dg-options "-std=c++0x" }
template<typename T, T a, T... Params>
struct max
{
static const T value = a > max<T, Params>::value ? a : max<T, Params>::value; // { dg-error "not expanded|Params" }
};
template<typename T, T a, T b>
struct max<T, a, b>
{
static const T value = a > b ? a : b;
};
static const int value1 = max< int, 1, 2>::value;
static const int value2 = max< int, 1, 3, 5>::value;

9
gcc/testsuite/g++.dg/cpp0x/vt-34606.C Normal file
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// { dg-options "-std=c++0x" }
template<typename...> struct A;
template<typename T, typename... U> struct A<T, U> // { dg-error "parameter packs|U" }
{ // { dg-error "parameter packs|U" }
template<typename> struct B;
template<typename X> struct B<X*> {}; // { dg-error "parameter packs|U" }
};

14
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// { dg-options "-std=c++0x" }
template<typename... T> struct A
{
template<T> struct B {}; // { dg-error "not expanded|T" }
};
A<int>::B<0> b;
template<typename... T> struct B
{
template<T> B(); // { dg-error "not expanded|T" }
};
B<int> c;

6
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// { dg-options "-std=c++0x" }
template<template<int> class... T> struct A
{
void foo(T<0>); // { dg-error "not expanded|T" }
void bar(T<0>); // { dg-error "not expanded|T" }
};

6
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// { dg-options "-std=c++0x" }
template<typename> struct A {};
template<template<typename> class... T> void foo(T<int>) {} // { dg-error "not expanded|T" }
template void foo<A>(A<int>); // { dg-error "does not match" }

13
gcc/testsuite/g++.dg/cpp0x/vt-34919.C Normal file
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// { dg-options "-std=c++0x" }
template<int... N> struct A
{
static void foo()
{
int i = N; // { dg-error "not expanded|N" }
}
};
void bar()
{
A<0>::foo();
}

7
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// { dg-options "-std=c++0x" }
template<typename... T> struct A
{
static const int i __attribute__((aligned(__alignof(T)))) = 0; // { dg-error "not expanded|T" }
};
A<int> a;