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re PR c++/53492 (ICE in retrieve_specialization, at cp/pt.c:985)

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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.

From-SVN: r208455
This commit is contained in:
Jason Merrill 2014-03-10 11:44:50 -04:00 committed by Jason Merrill
parent 31dad8091a
commit 4d3f2fa687
4 changed files with 26 additions and 1 deletions
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7
gcc/cp/ChangeLog
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@ -1,3 +1,10 @@
2014-03-10 Jason Merrill <jason@redhat.com>
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

8
gcc/cp/parser.c
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@ -19888,7 +19888,13 @@ cp_parser_class_head (cp_parser* parser,
pushed_scope = push_scope (nested_name_specifier);
/* Get the canonical version of this type. */
type = TYPE_MAIN_DECL (TREE_TYPE (type));
if (PROCESSING_REAL_TEMPLATE_DECL_P ()
/* Call push_template_decl if it seems like we should be defining a
template either from the template headers or the type we're
defining, so that we diagnose both extra and missing headers. */
if ((PROCESSING_REAL_TEMPLATE_DECL_P ()
|| (CLASSTYPE_TEMPLATE_INFO (TREE_TYPE (type))
&& PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE
(TREE_TYPE (type)))))
&& !CLASSTYPE_TEMPLATE_SPECIALIZATION (TREE_TYPE (type)))
{
type = push_template_decl (type);

2
gcc/cp/pt.c
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@ -4908,6 +4908,8 @@ push_template_decl_real (tree decl, bool is_friend)
{
error ("expected %d levels of template parms for %q#D, got %d",
i, decl, TMPL_ARGS_DEPTH (args));
DECL_INTERFACE_KNOWN (decl) = 1;
return error_mark_node;
}
else
for (current = decl; i > 0; --i, parms = TREE_CHAIN (parms))

10
gcc/testsuite/g++.dg/template/memtmpl4.C Normal file
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@ -0,0 +1,10 @@
// PR c++/53492
template<typename T> struct A
{
template<typename U> struct B;
};
template <> template<class T> struct A<T>::B { }; // { dg-error "expected 2 levels" }
A<int>::B<int> b; // { dg-error "" }