c90-const-expr-2.c, [...]: Add more tests.

	* gcc.dg/c90-const-expr-2.c, gcc.dg/c99-const-expr-2.c: Add more
	tests.

From-SVN: r37466

gcc/testsuite/ChangeLog

+2000-11-14  Joseph S. Myers  <jsm28@cam.ac.uk>
+
+	* gcc.dg/c90-const-expr-2.c, gcc.dg/c99-const-expr-2.c: Add more
+	tests.
+
 2000-11-14  Jakub Jelinek  <jakub@redhat.com>
 
 	* gcc.c-torture/execute/20000801-4.c: Make sure the second string is

gcc/testsuite/gcc.dg/c90-const-expr-2.c

@@ -31,6 +31,7 @@ foo (void)
   ASSERT_NOT_NPC ((void *)(void *)0); /* { dg-bogus "incompatible" "bogus null pointer constant" { xfail *-*-* } } */
   ASSERT_NOT_NPC ((void *)(char *)0); /* { dg-bogus "incompatible" "bogus null pointer constant" { xfail *-*-* } } */
   ASSERT_NOT_NPC ((void *)(0, 0)); /* { dg-bogus "incompatible" "bogus null pointer constant" { xfail *-*-* } } */
+  ASSERT_NOT_NPC ((void *)(&"Foobar"[0] - &"Foobar"[0])); /* { dg-bogus "incompatible" "bogus null pointer constant" { xfail *-*-* } } */
   /* This last one is a null pointer constant in C99 only.  */
   ASSERT_NOT_NPC ((void *)(1 ? 0 : (0, 0))); /* { dg-bogus "incompatible" "bogus null pointer constant" { xfail *-*-* } } */
 }

gcc/testsuite/gcc.dg/c99-const-expr-2.c

@@ -31,6 +31,7 @@ foo (void)
   ASSERT_NOT_NPC ((void *)(void *)0); /* { dg-bogus "incompatible" "bogus null pointer constant" { xfail *-*-* } } */
   ASSERT_NOT_NPC ((void *)(char *)0); /* { dg-bogus "incompatible" "bogus null pointer constant" { xfail *-*-* } } */
   ASSERT_NOT_NPC ((void *)(0, 0)); /* { dg-bogus "incompatible" "bogus null pointer constant" { xfail *-*-* } } */
+  ASSERT_NOT_NPC ((void *)(&"Foobar"[0] - &"Foobar"[0])); /* { dg-bogus "incompatible" "bogus null pointer constant" { xfail *-*-* } } */
   /* This last one is a null pointer constant in C99 only.  */
   ASSERT_NPC ((void *)(1 ? 0 : (0, 0)));
 }