libcxxabi/test/catch_pointer_nullptr.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // Catching an exception thrown as nullptr was not properly handled before
  10 // 2f984cab4fa7, which landed in macOS 10.13
  11 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12}}
  12
  13 // UNSUPPORTED: c++03
  14 // UNSUPPORTED: no-exceptions
  15
  16 #include <cassert>
  17 #include <cstdlib>
  18
  19 struct A {};
  20
  21 void test1()
  22 {
  23     try
  24     {
  25         throw nullptr;
  26         assert(false);
  27     }
  28     catch (int* p)
  29     {
  30         assert(!p);
  31     }
  32     catch (long*)
  33     {
  34         assert(false);
  35     }
  36 }
  37
  38 void test2()
  39 {
  40     try
  41     {
  42         throw nullptr;
  43         assert(false);
  44     }
  45     catch (A* p)
  46     {
  47         assert(!p);
  48     }
  49     catch (int*)
  50     {
  51         assert(false);
  52     }
  53 }
  54
  55 template <class Catch>
  56 void catch_nullptr_test() {
  57   try {
  58     throw nullptr;
  59     assert(false);
  60   } catch (Catch c) {
  61     assert(!c);
  62   } catch (...) {
  63     assert(false);
  64   }
  65 }
  66
  67
  68 int main(int, char**)
  69 {
  70   // catch naked nullptrs
  71   test1();
  72   test2();
  73
  74   catch_nullptr_test<int*>();
  75   catch_nullptr_test<int**>();
  76   catch_nullptr_test<int A::*>();
  77   catch_nullptr_test<const int A::*>();
  78   catch_nullptr_test<int A::**>();
  79
  80   return 0;
  81 }