re PR c++/24314 (Extra "template<>" in partial specialization is compiled successfuly.)

2018-04-10  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/24314
	* g++.dg/parse/template29.C: New.

From-SVN: r259273

gcc/testsuite/ChangeLog

+2018-04-10  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/24314
+	* g++.dg/parse/template29.C: New.
+
 2018-04-10  Bin Cheng  <bin.cheng@arm.com>
 
 	PR testsuite/85190

gcc/testsuite/g++.dg/parse/template29.C

+// PR c++/24314
+
+// The base template.
+template <class T>
+struct A
+{
+   int select() { return 0; }
+};
+
+//Extra "template<>"
+template <>
+template <>
+template <>
+template <>
+template <>
+template <>
+template <>
+template <>
+template <>
+template <>
+template <>
+template <class T>
+struct A<T*>  // { dg-error "too many template-parameter-lists" }
+{
+   int select() { return 1; }
+};
+
+int main()
+{
+   return A<int*>().select();
+}