re PR c++/22153 (ICE on invalid template specialization)

PR c++/22153
* cp/parser.c (cp_parser_member_declaration): Detect and handle
a template specialization.
* testsuite/g++.dg/template/crash38.C: New test.
* testsuite/g++.dg/parse/explicit1.C: Change expected errors.

From-SVN: r105944

gcc/cp/ChangeLog

+2005-10-28  Josh Conner  <jconner@apple.com>
+
+	PR c++/22153
+	* parser.c (cp_parser_member_declaration): Detect and handle
+	a template specialization.
+
 2005-10-28  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR C++/23426

gcc/cp/parser.c

@@ -13240,8 +13240,13 @@ cp_parser_member_declaration (cp_parser* parser)
   /* Check for a template-declaration.  */
   if (cp_lexer_next_token_is_keyword (parser->lexer, RID_TEMPLATE))
     {
-      /* Parse the template-declaration.  */
-      cp_parser_template_declaration (parser, /*member_p=*/true);
+      /* An explicit specialization here is an error condition, and we
+	 expect the specialization handler to detect and report this.  */
+      if (cp_lexer_peek_nth_token (parser->lexer, 2)->type == CPP_LESS
+	  && cp_lexer_peek_nth_token (parser->lexer, 3)->type == CPP_GREATER)
+	cp_parser_explicit_specialization (parser);
+      else
+	cp_parser_template_declaration (parser, /*member_p=*/true);
 
       return;
     }

gcc/testsuite/ChangeLog

+2005-10-28  Josh Conner  <jconner@apple.com>
+
+	PR c++/22153
+	* g++.dg/template/crash38.C: New test.
+	* g++.dg/parse/explicit1.C: Change expected errors.
+
 2005-10-28  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR C++/23426

gcc/testsuite/g++.dg/crash38.C

+// { dg-do compile }
+
+// PR c++/22153
+
+template<int> void foo();
+
+template<int> struct A
+{
+    template<> friend void foo<0>(); // { dg-error "" }
+};

gcc/testsuite/g++.dg/parse/explicit1.C

@@ -7,5 +7,5 @@
 
 struct foo { 
         template<typename T> void bar (T &t) {}
-        template<> void bar<double>(double &t) {} // { dg-error "explicit|non-namespace|member" }
+        template<> void bar<double>(double &t) {} // { dg-error "non-namespace|template|function" }
 };