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authorJason Merrill <jason@redhat.com>2012-04-16 22:29:35 -0400
committerJason Merrill <jason@gcc.gnu.org>2012-04-16 22:29:35 -0400
commit3ab97d92fc7e94b54411aa7629b13b4a4381304b (patch)
tree0f20ec22367fc387890646dc32a8f606627a0427 /gcc
parent99d4f8f70432e889eaa87f2a00a69f8b3481ff63 (diff)
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re PR c++/50830 ([c++0x] Variadic template, inner class error)
PR c++/50830 * pt.c (convert_template_argument): Handle template template argument packs. From-SVN: r186520
Diffstat (limited to 'gcc')
-rw-r--r--gcc/cp/ChangeLog4
-rw-r--r--gcc/cp/pt.c5
-rw-r--r--gcc/testsuite/ChangeLog3
-rw-r--r--gcc/testsuite/g++.dg/cpp0x/variadic129.C19
4 files changed, 30 insertions, 1 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 3f2b999..24ce8e0 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,9 @@
2012-04-16 Jason Merrill <jason@redhat.com>
+ PR c++/50830
+ * pt.c (convert_template_argument): Handle template template
+ argument packs.
+
PR c++/50303
* pt.c (tsubst_pack_expansion): Use tsubst_expr for template
template parameters.
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 7423781..fcefc94 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -6428,6 +6428,7 @@ convert_template_argument (tree parm,
is_tmpl_type =
((TREE_CODE (arg) == TEMPLATE_DECL
&& TREE_CODE (DECL_TEMPLATE_RESULT (arg)) == TYPE_DECL)
+ || (requires_tmpl_type && TREE_CODE (arg) == TYPE_ARGUMENT_PACK)
|| TREE_CODE (arg) == TEMPLATE_TEMPLATE_PARM
|| TREE_CODE (arg) == UNBOUND_CLASS_TEMPLATE);
@@ -6499,7 +6500,9 @@ convert_template_argument (tree parm,
{
if (requires_tmpl_type)
{
- if (TREE_CODE (TREE_TYPE (arg)) == UNBOUND_CLASS_TEMPLATE)
+ if (template_parameter_pack_p (parm) && ARGUMENT_PACK_P (orig_arg))
+ val = orig_arg;
+ else if (TREE_CODE (TREE_TYPE (arg)) == UNBOUND_CLASS_TEMPLATE)
/* The number of argument required is not known yet.
Just accept it for now. */
val = TREE_TYPE (arg);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 42e33c7..1ced5be 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
2012-04-16 Jason Merrill <jason@redhat.com>
+ PR c++/50830
+ * g++.dg/cpp0x/variadic129.C: New.
+
PR c++/50303
* g++.dg/cpp0x/variadic128.C: New.
diff --git a/gcc/testsuite/g++.dg/cpp0x/variadic129.C b/gcc/testsuite/g++.dg/cpp0x/variadic129.C
new file mode 100644
index 0000000..7118301
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/variadic129.C
@@ -0,0 +1,19 @@
+// PR c++/50830
+// { dg-do compile { target c++11 } }
+
+template<template<class> class...>
+struct list_templates {};
+
+template<class>
+struct aa {};
+
+template<class... T>
+struct test {};
+
+template<template<class> class... F, class T>
+struct test<list_templates<F...>, T>
+{
+ struct inner {};
+};
+
+test<list_templates<aa>, int> a4; // error