From f6ae9c86e4e212530350c80c72ee4fd580ee909e Mon Sep 17 00:00:00 2001
From: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Date: Wed, 22 Feb 2017 16:30:03 +0100
Subject: [PATCH] add test case for warnings about overlapping initializers

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Christopher Li <sparse@chrisli.org>
---
 validation/field-override.c | 88 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 validation/field-override.c

diff --git a/validation/field-override.c b/validation/field-override.c
new file mode 100644
index 00000000..d5d00dfa
--- /dev/null
+++ b/validation/field-override.c
@@ -0,0 +1,88 @@
+static int ref[] = {
+	[1] = 3,
+	[2] = 3,
+	[3] = 3,
+	[2] = 2,		/* check-should-warn */
+	[1] = 1,		/* check-should-warn */
+};
+
+static int foo[] = {
+	[1 ... 3] = 3,
+};
+
+static int foz[4] = {
+	[0 ... 3] = 3,
+	[0] = 0,
+	[1] = 0,
+	[2 ... 3] = 1,
+	[2] = 3,		/* check-should-warn */
+	[3] = 3,		/* check-should-warn */
+};
+
+static int bar[] = {
+	[1 ... 3] = 3,
+	[1]       = 1,		/* check-should-warn */
+	[2]       = 2,		/* check-should-warn */
+	[2 ... 4] = 2,		/* check-should-warn */
+	[2 ... 3] = 2,		/* check-should-warn */
+	[4] = 4,		/* check-should-warn */
+	[0] = 0,
+	[5] = 5,
+};
+
+static int baz[3][3] = {
+	[0 ... 2][0 ... 2] = 0,
+	[0] = { 0, 0, 0, },	/* check-should-warn */
+	[0][0] = 1,		/* check-should-warn */
+	[1] = { 0, 0, 0, },	/* check-should-warn */
+	[1][0] = 1,		/* check-should-warn */
+	[1][1] = 1,		/* check-should-warn */
+	[1 ... 2][1 ... 2] = 2,
+};
+
+
+struct s {
+	int i;
+	int a[2];
+};
+
+static struct s s = {
+	.a[0] = 0,
+	.a[1] = 1,
+};
+
+static struct s a[2] = {
+	[0].i = 0,
+	[1].i = 1,
+	[0].a[0] = 2,
+	[0].a[1] = 3,
+};
+
+static struct s b[2] = {
+	[0 ... 1] = { 0, { 1, 2 }, },
+	[0].i = 0,
+	[1].i = 1,
+	[0].a[0] = 2,
+	[0].a[1] = 3,
+};
+
+/*
+ * check-name: field-override
+ * check-command: sparse -Woverride-init $file
+ * check-known-to-fail
+ *
+ * check-error-start
+field-override.c:2:10: warning: Initializer entry defined twice
+field-override.c:6:10:   also defined here
+field-override.c:14:10: warning: Initializer entry defined twice
+field-override.c:15:10:   also defined here
+field-override.c:23:10: warning: Initializer entry defined twice
+field-override.c:24:10:   also defined here
+field-override.c:23:10: warning: Initializer entry defined twice
+field-override.c:25:10:   also defined here
+field-override.c:34:10: warning: Initializer entry defined twice
+field-override.c:35:10:   also defined here
+field-override.c:62:10: warning: Initializer entry defined twice
+field-override.c:63:10:   also defined here
+ * check-error-end
+ */
-- 
2.11.4.GIT