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 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 2, 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 COPYING.  If not, write to the Free
  21 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  22 // USA.
  23
  24 // current_exception() under various conditions.
  25
  26 #include <exception>
  27 #include <testsuite_hooks.h>
  28
  29 void test01()
  30 {
  31   bool test __attribute__((unused)) = true;
  32   using namespace std;
  33
  34   exception_ptr ep = current_exception();
  35   VERIFY( !ep );
  36 }
  37
  38 void test02()
  39 {
  40   bool test __attribute__((unused)) = true;
  41   using namespace std;
  42
  43   try {
  44     throw 0;
  45   } catch(...) {
  46     exception_ptr ep = current_exception();
  47     VERIFY( ep );
  48   }
  49 }
  50
  51 void test03()
  52 {
  53   bool test __attribute__((unused)) = true;
  54   using namespace std;
  55
  56   try {
  57     throw exception();
  58   } catch(std::exception&) {
  59     exception_ptr ep = current_exception();
  60     VERIFY( ep );
  61   }
  62 }
  63
  64 void test04()
  65 {
  66   bool test __attribute__((unused)) = true;
  67   using namespace std;
  68
  69   try {
  70     throw 0;
  71   } catch(...) {
  72     exception_ptr ep1 = current_exception();
  73     try {
  74       throw 0;
  75     } catch(...) {
  76       exception_ptr ep2 = current_exception();
  77       VERIFY( ep1 != ep2 );
  78     }
  79     exception_ptr ep3 = current_exception();
  80     // Not guaranteed by standard, but by this implementation.
  81     VERIFY( ep1 == ep3 );
  82   }
  83 }
  84
  85 int main()
  86 {
  87   test01();
  88   test02();
  89   test03();
  90   test04();
  91   return 0;
  92 }