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 // UNSUPPORTED: c++03
  10 // UNSUPPORTED: no-exceptions
  11
  12 #include <cassert>
  13 #include <cstdlib>
  14
  15 struct A {};
  16
  17 void test1()
  18 {
  19     try
  20     {
  21         throw nullptr;
  22         assert(false);
  23     }
  24     catch (int* p)
  25     {
  26         assert(!p);
  27     }
  28     catch (long*)
  29     {
  30         assert(false);
  31     }
  32 }
  33
  34 void test2()
  35 {
  36     try
  37     {
  38         throw nullptr;
  39         assert(false);
  40     }
  41     catch (A* p)
  42     {
  43         assert(!p);
  44     }
  45     catch (int*)
  46     {
  47         assert(false);
  48     }
  49 }
  50
  51 template <class Catch>
  52 void catch_nullptr_test() {
  53   try {
  54     throw nullptr;
  55     assert(false);
  56   } catch (Catch c) {
  57     assert(!c);
  58   } catch (...) {
  59     assert(false);
  60   }
  61 }
  62
  63
  64 int main(int, char**)
  65 {
  66   // catch naked nullptrs
  67   test1();
  68   test2();
  69
  70   catch_nullptr_test<int*>();
  71   catch_nullptr_test<int**>();
  72   catch_nullptr_test<int A::*>();
  73   catch_nullptr_test<const int A::*>();
  74   catch_nullptr_test<int A::**>();
  75
  76   return 0;
  77 }