[src/trunk]: src/tests/usr.bin/xlint/lint1 tests/lint: demonstrate wrong warn...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f10366138fd8
branches:  trunk
changeset: 366542:f10366138fd8
user:      rillig <rillig%NetBSD.org@localhost>
date:      Mon May 30 08:04:00 2022 +0000

description:
tests/lint: demonstrate wrong warning 'array subscript cannot be'

Since tree.c 1.448 from 2022-05-26.

diffstat:

 tests/usr.bin/xlint/lint1/msg_168.c   |  27 ++++++++++++++++++++++++++-
 tests/usr.bin/xlint/lint1/msg_168.exp |   4 ++++
 2 files changed, 30 insertions(+), 1 deletions(-)

diffs (48 lines):

diff -r fb20c67faeb2 -r f10366138fd8 tests/usr.bin/xlint/lint1/msg_168.c
--- a/tests/usr.bin/xlint/lint1/msg_168.c       Mon May 30 07:19:28 2022 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_168.c       Mon May 30 08:04:00 2022 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: msg_168.c,v 1.5 2021/03/25 22:53:05 rillig Exp $       */
+/*     $NetBSD: msg_168.c,v 1.6 2022/05/30 08:04:00 rillig Exp $       */
 # 3 "msg_168.c"
 
 // Test for message: array subscript cannot be > %d: %ld [168]
@@ -40,3 +40,28 @@
        print_string(to_roman['9']);
        print_string(to_roman[':']);    /* expect: 168 */
 }
+
+
+struct s {
+       char offset_0;
+       char offset_1;
+       int offset_4;
+       short offset_8;
+       char offset_10;
+};
+
+struct s
+s_init(void)
+{
+       struct s s[1];
+       s->offset_0 = 1;
+       /* expect+1: warning: array subscript cannot be > 0: 1 [168] */
+       s->offset_1 = 2;
+       /* expect+1: warning: array subscript cannot be > 0: 4 [168] */
+       s->offset_4 = 3;
+       /* expect+1: warning: array subscript cannot be > 0: 8 [168] */
+       s->offset_8 = 4;
+       /* expect+1: warning: array subscript cannot be > 0: 10 [168] */
+       s->offset_10 = 5;
+       return s[0];
+}
diff -r fb20c67faeb2 -r f10366138fd8 tests/usr.bin/xlint/lint1/msg_168.exp
--- a/tests/usr.bin/xlint/lint1/msg_168.exp     Mon May 30 07:19:28 2022 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_168.exp     Mon May 30 08:04:00 2022 +0000
@@ -1,2 +1,6 @@
 msg_168.c(28): warning: array subscript cannot be > 19: 20 [168]
 msg_168.c(41): warning: array subscript cannot be > 57: 58 [168]
+msg_168.c(59): warning: array subscript cannot be > 0: 1 [168]
+msg_168.c(61): warning: array subscript cannot be > 0: 4 [168]
+msg_168.c(63): warning: array subscript cannot be > 0: 8 [168]
+msg_168.c(65): warning: array subscript cannot be > 0: 10 [168]