libstdc++-v3/testsuite/18_support/exception_ptr/current_exception.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // 2008-05-25  Sebastian Redl  <sebastian.redl@getdesigned.at>
   4
   5 // Copyright (C) 2008-2019 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 // current_exception() under various conditions.
  23
  24 #include <exception>
  25 #include <testsuite_hooks.h>
  26
  27 void test01()
  28 {
  29   using namespace std;
  30
  31   exception_ptr ep = current_exception();
  32   VERIFY( ep == 0 );
  33 }
  34
  35 void test02()
  36 {
  37   using namespace std;
  38
  39   try {
  40     throw 0;
  41   } catch(...) {
  42     exception_ptr ep = current_exception();
  43     VERIFY( ep != 0 );
  44   }
  45 }
  46
  47 void test03()
  48 {
  49   using namespace std;
  50
  51   try {
  52     throw exception();
  53   } catch(std::exception&) {
  54     exception_ptr ep = current_exception();
  55     VERIFY( ep != 0 );
  56   }
  57 }
  58
  59 void test04()
  60 {
  61   using namespace std;
  62
  63   try {
  64     throw 0;
  65   } catch(...) {
  66     exception_ptr ep1 = current_exception();
  67     try {
  68       throw 0;
  69     } catch(...) {
  70       exception_ptr ep2 = current_exception();
  71       VERIFY( ep1 != ep2 );
  72     }
  73     exception_ptr ep3 = current_exception();
  74     // Not guaranteed by standard, but by this implementation.
  75     VERIFY( ep1 == ep3 );
  76   }
  77 }
  78
  79 int main()
  80 {
  81   test01();
  82   test02();
  83   test03();
  84   test04();
  85   return 0;
  86 }