typeck.c (build_unary_op): Only warn about incr/decr a pointer if pedantic || warn_pointer_arith.

	* typeck.c (build_unary_op): Only warn about incr/decr a pointer
	if pedantic || warn_pointer_arith.

From-SVN: r18118

gcc/cp/ChangeLog

+1998-02-19  Brendan Kehoe  <brendan@cygnus.com>
+
+	* typeck.c (build_unary_op): Only warn about incr/decr a pointer
+	if pedantic || warn_pointer_arith.
+
 Thu Feb 19 09:37:21 1998  Kriang Lerdsuwanakij  <lerdsuwa@scf.usc.edu>
 
 	* pt.c (unify): Handle TEMPLATE_DECL.

gcc/cp/typeck.c

@@ -4341,8 +4341,9 @@ build_unary_op (code, xarg, noconvert)
 			((code == PREINCREMENT_EXPR
 			  || code == POSTINCREMENT_EXPR)
 			 ? "increment" : "decrement"), TREE_TYPE (argtype));
-	    else if (tmp == FUNCTION_TYPE || tmp == METHOD_TYPE
-		     || tmp == VOID_TYPE || tmp == OFFSET_TYPE)
+	    else if ((pedantic || warn_pointer_arith)
+		     && (tmp == FUNCTION_TYPE || tmp == METHOD_TYPE
+			 || tmp == VOID_TYPE || tmp == OFFSET_TYPE))
 	      cp_pedwarn ("ANSI C++ forbids %sing a pointer of type `%T'",
 			  ((code == PREINCREMENT_EXPR
 			    || code == POSTINCREMENT_EXPR)