libcxx/test/std/language.support/support.exception/uncaught/uncaught_exception.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: no-exceptions
  10 // test uncaught_exception
  11
  12 #include <exception>
  13 #include <cassert>
  14
  15 #include "test_macros.h"
  16
  17 struct A
  18 {
  19     ~A()
  20     {
  21         assert(std::uncaught_exception());
  22     }
  23 };
  24
  25 struct B
  26 {
  27     B()
  28     {
  29         // http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#475
  30         assert(!std::uncaught_exception());
  31     }
  32 };
  33
  34 int main(int, char**)
  35 {
  36     try
  37     {
  38         A a;
  39         assert(!std::uncaught_exception());
  40         throw B();
  41     }
  42     catch (...)
  43     {
  44         assert(!std::uncaught_exception());
  45     }
  46     assert(!std::uncaught_exception());
  47
  48   return 0;
  49 }