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authorJason Merrill <jason@redhat.com>2012-07-06 11:45:10 -0400
committerJason Merrill <jason@gcc.gnu.org>2012-07-06 11:45:10 -0400
commit3b5cd6f2bf2ba047bfe00a658478c5e03037cd8f (patch)
tree7e5d952e473656b625d4c3337c1c40088b94a970 /gcc/cp
parentdf947b0a640b9c8306e4ef0a64a330df9f82b46e (diff)
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re PR c++/53862 ([C++11] sorry, unimplemented: use of 'type_pack_expansion' in template)
PR c++/53862 * pt.c (tsubst_arg_types): Add "end" parameter. (check_undeduced_parms): Use it. From-SVN: r189334
Diffstat (limited to 'gcc/cp')
-rw-r--r--gcc/cp/ChangeLog4
-rw-r--r--gcc/cp/pt.c22
2 files changed, 15 insertions, 11 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 0bd2c77..f407539 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,9 @@
2012-07-06 Jason Merrill <jason@redhat.com>
+ PR c++/53862
+ * pt.c (tsubst_arg_types): Add "end" parameter.
+ (check_undeduced_parms): Use it.
+
* cp-tree.h (DECL_DECLARES_TYPE_P): Check DECL_TYPE_TEMPLATE_P.
PR c++/53858
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index df5d1f6..72b0c4f 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -171,7 +171,7 @@ static tree tsubst_template_parms (tree, tree, tsubst_flags_t);
static void regenerate_decl_from_template (tree, tree);
static tree most_specialized_class (tree, tree, tsubst_flags_t);
static tree tsubst_aggr_type (tree, tree, tsubst_flags_t, tree, int);
-static tree tsubst_arg_types (tree, tree, tsubst_flags_t, tree);
+static tree tsubst_arg_types (tree, tree, tree, tsubst_flags_t, tree);
static tree tsubst_function_type (tree, tree, tsubst_flags_t, tree);
static bool check_specialization_scope (void);
static tree process_partial_specialization (tree);
@@ -10500,11 +10500,14 @@ tsubst_decl (tree t, tree args, tsubst_flags_t complain)
return r;
}
-/* Substitute into the ARG_TYPES of a function type. */
+/* Substitute into the ARG_TYPES of a function type.
+ If END is a TREE_CHAIN, leave it and any following types
+ un-substituted. */
static tree
tsubst_arg_types (tree arg_types,
tree args,
+ tree end,
tsubst_flags_t complain,
tree in_decl)
{
@@ -10514,11 +10517,11 @@ tsubst_arg_types (tree arg_types,
tree expanded_args = NULL_TREE;
tree default_arg;
- if (!arg_types || arg_types == void_list_node)
+ if (!arg_types || arg_types == void_list_node || arg_types == end)
return arg_types;
remaining_arg_types = tsubst_arg_types (TREE_CHAIN (arg_types),
- args, complain, in_decl);
+ args, end, complain, in_decl);
if (remaining_arg_types == error_mark_node)
return error_mark_node;
@@ -10643,7 +10646,7 @@ tsubst_function_type (tree t,
}
/* Substitute the argument types. */
- arg_types = tsubst_arg_types (TYPE_ARG_TYPES (t), args,
+ arg_types = tsubst_arg_types (TYPE_ARG_TYPES (t), args, NULL_TREE,
complain, in_decl);
if (arg_types == error_mark_node)
return error_mark_node;
@@ -16757,12 +16760,9 @@ check_undeduced_parms (tree targs, tree args, tree end)
}
if (found)
{
- for (; args != end; args = TREE_CHAIN (args))
- {
- tree substed = tsubst (TREE_VALUE (args), targs, tf_none, NULL_TREE);
- if (substed == error_mark_node)
- return true;
- }
+ tree substed = tsubst_arg_types (args, targs, end, tf_none, NULL_TREE);
+ if (substed == error_mark_node)
+ return true;
}
return false;
}