1 files changed, 37 insertions, 0 deletions
diff --git a/validation/backend/function-ptr-xtype.c b/validation/backend/function-ptr-xtype.c
new file mode 100644
index 00000000..9cdfab05
--- /dev/null
+++ b/validation/backend/function-ptr-xtype.c
@@ -0,0 +1,37 @@
+typedef int  (*binop_t)(int, int);
+typedef int  (*unop_t)(int);
+typedef int  (*idef_t)(void);
+typedef long (*ldef_t)(void);
+typedef void (*use_t)(int);
+
+// We want to 'fn' have several different types.
+// The goal is for the ->priv member to be used
+// with a type different from what it was first stored.
+
+int foo(void *fn, int arg1, int arg2);
+int foo(void *fn, int arg1, int arg2)
+{
+	int res = 0;
+
+	res += ((binop_t)fn)(arg1, arg2);
+	res += ((unop_t)fn)(arg1);
+	res += ((ldef_t)fn)();
+	res += ((idef_t)fn)();
+	((use_t)fn)(res);
+	return res;
+}
+
+int bar(int (*fn)(int), int arg1, int arg2);
+int bar(int (*fn)(int), int arg1, int arg2)
+{
+	int res = 0;
+
+	res += ((binop_t)fn)(arg1, arg2);
+	res += fn(arg1);
+	return res;
+}
+
+/*
+ * check-name: mutate function pointer's type
+ * check-command: ./sparsec -c $file -o tmp.o
+ */