re PR c++/39425 (gcc loops after reporting template instantiation errors)

gcc/cp/

2009-03-18  H.J. Lu  <hongjiu.lu@intel.com>

	PR c++/39425
	* parser.c (cp_parser_explicit_specialization): Don't skip the
	rest of the specialization when begin_specialization returns
	false.

gcc/testsuite/

2009-03-18  H.J. Lu  <hongjiu.lu@intel.com>

	PR c++/39425
	* g++.dg/template/pr39425.C: New.

	* g++.dg/template/spec33.C: Updated.

From-SVN: r144932

gcc/cp/ChangeLog

+2009-03-18  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR c++/39425
+	* parser.c (cp_parser_explicit_specialization): Don't skip the
+	rest of the specialization when begin_specialization returns
+	false.
+
 2009-03-17  Jason Merrill  <jason@redhat.com>
 
 	* decl.c (grokfndecl): Set DECL_CONTEXT on parms.

gcc/cp/parser.c

@@ -10883,7 +10883,6 @@ cp_parser_explicit_specialization (cp_parser* parser)
   if (!begin_specialization ())
     {
       end_specialization ();
-      cp_parser_skip_to_end_of_block_or_statement (parser);
       return;
     }
 

gcc/testsuite/ChangeLog

+2009-03-18  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR c++/39425
+	* g++.dg/template/pr39425.C: New.
+
+	* g++.dg/template/spec33.C: Updated.
+
 2009-03-17  Jason Merrill  <jason@redhat.com>
 
 	* g++.dg/cpp0x/auto6.C, auto12.C: Update mangling.

gcc/testsuite/g++.dg/template/pr39425.C

+// PR c++/39425
+// { dg-do compile }
+
+class a {
+
+  template<unsigned int s>
+    struct _rec {
+      static const char size = _rec< (s >> 1) >::size;
+    };
+
+  template<>	// { dg-error "explicit" }
+  struct _rec <0> {
+    static const char size = 0;
+  };
+
+  static const unsigned int value = _rec < 1 >::size;
+
+}		// { dg-error "unqualified-id" }

gcc/testsuite/g++.dg/template/spec33.C

@@ -3,5 +3,5 @@
 struct A
 {
     template<int> static void foo   () {}
-    template<>    static void foo<0>() {}  // { dg-error "explicit" }
+    template<>    static void foo<0>() {}  // { dg-error "explicit|template" }
 };