explicit72.C: ensure that char and (un)signed char are different types for template...

	* g++.old-deja/g++.pt/explicit72.C: ensure that char and
	(un)signed char are different types for template specialization
	purposes.

From-SVN: r22226

gcc/testsuite/ChangeLog

+1998-09-04  Reid M. Pinchback  <reidmp@MIT.EDU>, Alexandre Oliva  <oliva@dcc.unicamp.br>
+
+	* g++.old-deja/g++.pt/explicit72.C: ensure that char and
+	(un)signed char are different types for template specialization
+	purposes.
+
 Thu Sep  3 00:40:32 1998  Ovidiu Predescu  <ovidiu@aracnet.com>
 
 	* lib/{objc.exp,objc-torture.exp}: New files for objc testing harness.

gcc/testsuite/g++.old-deja/g++.pt/explicit72.C

+// Build don't link:
+// Contributed by Reid M. Pinchback <reidmp@MIT.EDU>
+// Adapted by Alexandre Oliva <oliva@dcc.unicamp.br>
+// plain char, signed char and unsigned char are distinct types
+
+template <class X, class Y> class bug {};
+template <class X> class bug<X,char> { typedef char t; };
+template <class X> class bug<X,unsigned char> { typedef unsigned char t; };
+template <class X> class bug<X,signed char> { typedef signed char t; };
+template <class X> class bug<char,X> { typedef char t; };
+template <class X> class bug<unsigned char,X> { typedef unsigned char t; };
+template <class X> class bug<signed char,X> { typedef signed char t; };
+
+void foo() {
+  bug<int,char>::t();
+  bug<int,signed char>::t();
+  bug<int,unsigned char>::t();
+  bug<char,int>::t();
+  bug<signed char,int>::t();
+  bug<unsigned char,int>::t();
+}