1 files changed, 93 insertions, 0 deletions
diff --git a/validation/restrict.c b/validation/restrict.c
new file mode 100644
index 00000000..f431f6d0
--- /dev/null
+++ b/validation/restrict.c
@@ -0,0 +1,93 @@
+void f00(void *restrict  dst);
+void f01(void *restrict *dst);
+void f02(void *restrict *dst);
+void f03(void *restrict *dst);
+
+void *restrict rp;
+void * up;
+
+void f00(void *dst)	  { }	/* check-should-pass */
+void f01(typeof(&rp) dst) { }	/* check-should-pass */
+void f02(void **dst)	  { }	/* check-should-fail */
+void f03(typeof(&up) dst) { }	/* check-should-fail */
+
+void foo(void)
+{
+	rp = up;		/* check-should-pass */
+	up = rp;		/* check-should-pass */
+}
+
+void ref(void)
+{
+	void *const qp;
+	void * up;
+	extern void *const *pqp;
+	extern void **pup;
+
+	pqp = &qp;		/* check-should-pass */
+	pqp = &up;		/* check-should-pass */
+	pqp = pup;
+
+	pup = &up;		/* check-should-pass */
+
+	pup = &qp;		/* check-should-fail */
+	pup = pqp;		/* check-should-fail */
+}
+
+void bar(void)
+{
+	extern void *restrict *prp;
+	extern void **pup;
+
+	prp = &rp;		/* check-should-pass */
+	prp = &up;		/* check-should-pass */
+	prp = pup;
+
+	pup = &up;		/* check-should-pass */
+
+	pup = &rp;		/* check-should-fail */
+	pup = prp;		/* check-should-fail */
+}
+
+void baz(void)
+{
+	extern typeof(&rp) prp;
+	extern typeof(&up) pup;
+
+	prp = &rp;		/* check-should-pass */
+	prp = &up;		/* check-should-pass */
+	prp = pup;
+
+	pup = &up;		/* check-should-pass */
+
+	pup = &rp;		/* check-should-fail */
+	pup = prp;		/* check-should-fail */
+}
+
+/*
+ * check-name: restrict qualifier
+ * check-command: sparse -Wno-decl $file;
+ *
+ * check-error-start
+restrict.c:11:6: error: symbol 'f02' redeclared with different type (originally declared at restrict.c:3) - incompatible argument 1 (different modifiers)
+restrict.c:12:6: error: symbol 'f03' redeclared with different type (originally declared at restrict.c:4) - incompatible argument 1 (different modifiers)
+restrict.c:33:13: warning: incorrect type in assignment (different modifiers)
+restrict.c:33:13:    expected void **extern [assigned] pup
+restrict.c:33:13:    got void *const *<noident>
+restrict.c:34:13: warning: incorrect type in assignment (different modifiers)
+restrict.c:34:13:    expected void **extern [assigned] pup
+restrict.c:34:13:    got void *const *extern [assigned] pqp
+restrict.c:48:13: warning: incorrect type in assignment (different modifiers)
+restrict.c:48:13:    expected void **extern [assigned] pup
+restrict.c:48:13:    got void *restrict *<noident>
+restrict.c:49:13: warning: incorrect type in assignment (different modifiers)
+restrict.c:49:13:    expected void **extern [assigned] pup
+restrict.c:49:13:    got void *restrict *extern [assigned] prp
+restrict.c:63:13: warning: incorrect type in assignment (different modifiers)
+restrict.c:63:13:    expected void **extern [assigned] pup
+restrict.c:63:13:    got void *restrict *<noident>
+restrict.c:64:13: warning: incorrect type in assignment (different modifiers)
+restrict.c:64:13:    expected void **extern [assigned] pup
+restrict.c:64:13:    got void *restrict *extern [assigned] prp
+ * check-error-end
+ */