casts.m revision a5728872c7702ddd09537c95bc3cbd20e1f2fb09 
1// RUN: %clang_cc1 -analyze -analyzer-experimental-internal-checks -checker-cfref -analyzer-store=basic -verify %s
2// RUN: %clang_cc1 -analyze -analyzer-experimental-internal-checks -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