c-pretty-print.c (pp_c_parameter_type_list): Print ...

2017-10-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* c-pretty-print.c (pp_c_parameter_type_list): Print ... for variadic
	functions.

testsuite:
2017-10-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>

	* gcc.dg/Wincompatible-pointer-types-1.c: New test.

From-SVN: r253460

gcc/c-family/ChangeLog

+2017-10-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	* c-pretty-print.c (pp_c_parameter_type_list): Print ... for variadic
+	functions.
+
 2017-10-02  Richard Sandiford  <richard.sandiford@linaro.org>
 
 	* c-warn.c (warn_tautological_bitwise_comparison): Use wi::to_widest

gcc/c-family/c-pretty-print.c

@@ -521,6 +521,11 @@ pp_c_parameter_type_list (c_pretty_printer *pp, tree t)
 	  else
 	    pp->abstract_declarator (TREE_VALUE (parms));
 	}
+      if (!first && !parms)
+	{
+	  pp_separate_with (pp, ',');
+	  pp_c_ws_string (pp, "...");
+	}
     }
   pp_c_right_paren (pp);
 }

gcc/testsuite/ChangeLog

+2017-10-05  Bernd Edlinger  <bernd.edlinger@hotmail.de>
+
+	* gcc.dg/Wincompatible-pointer-types-1.c: New test.
+
 2017-10-05  Tamar Christina  <tamar.christina@arm.com>
 
 	* gcc.dg/vect/slp-perm-9.c: Use vect_sizes_16B_8B.

gcc/testsuite/gcc.dg/Wincompatible-pointer-types-1.c

+/* { dg-do compile } */
+/* { dg-options "-pedantic-errors" } */
+
+void f (int, ...);
+
+int
+f1 (void)
+{
+  int (*x) ();
+  x = f; /* { dg-error "assignment to 'int \\(\\*\\)\\(\\)' from incompatible pointer type 'void \\(\\*\\)\\(int,  \.\.\.\\)'" } */
+  return x (1);
+}