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

   1 // { dg-options "-std=gnu++0x" }
   2 // { dg-require-atomic-builtins "" }
   3
   4 // 2008-05-25  Sebastian Redl  <sebastian.redl@getdesigned.at>
   5
   6 // Copyright (C) 2008, 2009 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 3, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 // current_exception() under various conditions.
  24
  25 #include <exception>
  26 #include <testsuite_hooks.h>
  27
  28 void test01()
  29 {
  30   bool test __attribute__((unused)) = true;
  31   using namespace std;
  32
  33   exception_ptr ep = current_exception();
  34   VERIFY( ep == 0 );
  35 }
  36
  37 void test02()
  38 {
  39   bool test __attribute__((unused)) = true;
  40   using namespace std;
  41
  42   try {
  43     throw 0;
  44   } catch(...) {
  45     exception_ptr ep = current_exception();
  46     VERIFY( ep != 0 );
  47   }
  48 }
  49
  50 void test03()
  51 {
  52   bool test __attribute__((unused)) = true;
  53   using namespace std;
  54
  55   try {
  56     throw exception();
  57   } catch(std::exception&) {
  58     exception_ptr ep = current_exception();
  59     VERIFY( ep != 0 );
  60   }
  61 }
  62
  63 void test04()
  64 {
  65   bool test __attribute__((unused)) = true;
  66   using namespace std;
  67
  68   try {
  69     throw 0;
  70   } catch(...) {
  71     exception_ptr ep1 = current_exception();
  72     try {
  73       throw 0;
  74     } catch(...) {
  75       exception_ptr ep2 = current_exception();
  76       VERIFY( ep1 != ep2 );
  77     }
  78     exception_ptr ep3 = current_exception();
  79     // Not guaranteed by standard, but by this implementation.
  80     VERIFY( ep1 == ep3 );
  81   }
  82 }
  83
  84 int main()
  85 {
  86   test01();
  87   test02();
  88   test03();
  89   test04();
  90   return 0;
  91 }