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

   1 // { dg-options "-std=gnu++0x" }
   2 // 2008-05-25  Sebastian Redl  <sebastian.redl@getdesigned.at>
   3
   4 // Copyright (C) 2008 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20 // USA.
  21
  22 // current_exception() under various conditions.
  23
  24 #include <exception>
  25 #include <testsuite_hooks.h>
  26
  27 void test01()
  28 {
  29   bool test __attribute__((unused)) = true;
  30   using namespace std;
  31
  32   exception_ptr ep = current_exception();
  33   VERIFY( !ep );
  34 }
  35
  36 void test02()
  37 {
  38   bool test __attribute__((unused)) = true;
  39   using namespace std;
  40
  41   try {
  42     throw 0;
  43   } catch(...) {
  44     exception_ptr ep = current_exception();
  45     VERIFY( ep );
  46   }
  47 }
  48
  49 void test03()
  50 {
  51   bool test __attribute__((unused)) = true;
  52   using namespace std;
  53
  54   try {
  55     throw exception();
  56   } catch(std::exception&) {
  57     exception_ptr ep = current_exception();
  58     VERIFY( ep );
  59   }
  60 }
  61
  62 void test04()
  63 {
  64   bool test __attribute__((unused)) = true;
  65   using namespace std;
  66
  67   try {
  68     throw 0;
  69   } catch(...) {
  70     exception_ptr ep1 = current_exception();
  71     try {
  72       throw 0;
  73     } catch(...) {
  74       exception_ptr ep2 = current_exception();
  75       VERIFY( ep1 != ep2 );
  76     }
  77     exception_ptr ep3 = current_exception();
  78     // Not guaranteed by standard, but by this implementation.
  79     VERIFY( ep1 == ep3 );
  80   }
  81 }
  82
  83 int main()
  84 {
  85   test01();
  86   test02();
  87   test03();
  88   test04();
  89   return 0;
  90 }