spew.c (yyerror): Cope if yylval.ttype is NULL.

cp:
	* spew.c (yyerror): Cope if yylval.ttype is NULL.
testsuite:
	* g++.old-deja/g++.other/parse2.C: New test.

From-SVN: r37816

gcc/cp/ChangeLog

 2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>
 
+	* spew.c (yyerror): Cope if yylval.ttype is NULL.
+
+2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>
+
 	* decl.c (grokdeclarator): Diagnose undefined template contexts.
 
 2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>

gcc/cp/spew.c

@@ -1398,9 +1398,13 @@ yyerror (msgid)
 	   || last_token == CPP_INT
 	   || last_token == CPP_FLOAT)
     error ("%s before numeric constant", string);
-  else if (last_token == CPP_NAME
-	   && TREE_CODE (yylval.ttype) == IDENTIFIER_NODE)
-    error ("%s before \"%s\"", string, IDENTIFIER_POINTER (yylval.ttype));
+  else if (last_token == CPP_NAME)
+    {
+      if (yylval.ttype && TREE_CODE (yylval.ttype) == IDENTIFIER_NODE)
+        error ("%s before `%s'", string, IDENTIFIER_POINTER (yylval.ttype));
+      else
+        error ("%s before `%c'", string, yychar);
+    }
   else
-    error ("%s before '%s' token", string, NAME(last_token));
+    error ("%s before `%s' token", string, NAME (last_token));
 }

gcc/testsuite/ChangeLog

 2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>
 
+	* g++.old-deja/g++.other/parse2.C: New test.
+
+2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>
+
 	* g++.old-deja/g++.pt/incomplete1.C: New test.
 
 2000-11-28  Nathan Sidwell  <nathan@codesourcery.com>

gcc/testsuite/g++.old-deja/g++.other/parse2.C

+// Build don't link:
+
+// Copyright (C) 2000 Free Software Foundation, Inc.
+// Contributed by Nathan Sidwell 24 Nov 2000 <nathan@codesourcery.com>
+
+// Bug 531: We ICEd trying to give a parse error.
+
+struct X
+{
+  bool operator (const X &) const;  // ERROR - parse error
+};