casts.m revision f7a0cf426eddae76e1a71dd2295631a2cf0560af 
1// RUN: clang-cc -analyze -checker-cfref -analyzer-store=basic --verify %s &&
2// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region --verify %s
3
4// Test function pointer casts.  Currently we track function addresses using
5// loc::FunctionVal.  Because casts can be arbitrary, do we need to model
6// functions with regions?
7typedef void* (*MyFuncTest1)(void);
8
9MyFuncTest1 test1_aux(void);
10void test1(void) {
11  void *x;
12  void* (*p)(void);
13  p = ((void*) test1_aux());
14  if (p != ((void*) 0)) x = (*p)();
15}
16
17// Test casts from void* to function pointers.  Same issue as above:
18// should we eventually model function pointers using regions?
19void* test2(void *p) {
20  MyFuncTest1 fp = (MyFuncTest1) p;
21  return (*fp)();
22}
23