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      1 //===--------------------- catch_pointer_nullptr.cpp ----------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #include <cassert>
     11 #include <cstdlib>
     12 
     13 #ifndef __has_feature
     14 #define __has_feature(x) 0
     15 #endif
     16 
     17 struct A {};
     18 
     19 #if __has_feature(cxx_nullptr)
     20 
     21 void test1()
     22 {
     23     try
     24     {
     25         throw nullptr;
     26         assert(false);
     27     }
     28     catch (int*)
     29     {
     30     }
     31     catch (long*)
     32     {
     33         assert(false);
     34     }
     35 }
     36 
     37 void test2()
     38 {
     39     try
     40     {
     41         throw nullptr;
     42         assert(false);
     43     }
     44     catch (A*)
     45     {
     46     }
     47     catch (int*)
     48     {
     49         assert(false);
     50     }
     51 }
     52 
     53 template <class Catch>
     54 void catch_nullptr_test() {
     55   try {
     56     throw nullptr;
     57     assert(false);
     58   } catch (Catch) {
     59     // nothing todo
     60   } catch (...) {
     61     assert(false);
     62   }
     63 }
     64 
     65 #else
     66 
     67 void test1()
     68 {
     69 }
     70 
     71 void test2()
     72 {
     73 }
     74 
     75 template <class Catch>
     76 void catch_nullptr_test()
     77 {
     78 }
     79 
     80 #endif
     81 
     82 int main()
     83 {
     84   // catch naked nullptrs
     85   test1();
     86   test2();
     87 
     88   catch_nullptr_test<int*>();
     89   catch_nullptr_test<int**>();
     90   catch_nullptr_test<int A::*>();
     91   catch_nullptr_test<const int A::*>();
     92   catch_nullptr_test<int A::**>();
     93 }
     94