libstdc++-v3/testsuite/18_support/exception_ptr/rethrow_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 // rethrow_exception() and preservation of data
  23
  24 #include <exception>
  25 #include <typeinfo>
  26 #include <cstring>
  27 #include <stdexcept>
  28 #include <testsuite_hooks.h>
  29
  30 void test01()
  31 {
  32   bool test __attribute__((unused)) = true;
  33   using namespace std;
  34
  35   try {
  36     rethrow_exception(copy_exception(0));
  37   } catch(...) {
  38   }
  39 }
  40
  41 void test02()
  42 {
  43   bool test __attribute__((unused)) = true;
  44   using namespace std;
  45
  46   try {
  47     rethrow_exception(copy_exception(runtime_error("test")));
  48   } catch(exception &e) {
  49     VERIFY( typeid(e) == typeid(runtime_error) );
  50     VERIFY( strcmp(e.what(), "test") == 0 );
  51   }
  52 }
  53
  54 void test03()
  55 {
  56   bool test __attribute__((unused)) = true;
  57   using namespace std;
  58
  59   exception_ptr ep;
  60   try {
  61     throw 0;
  62   } catch(...) {
  63     ep = current_exception();
  64   }
  65   try {
  66     rethrow_exception(ep);
  67   } catch(...) {
  68   }
  69 }
  70
  71 void test04()
  72 {
  73   bool test __attribute__((unused)) = true;
  74   using namespace std;
  75
  76   // Weave the exceptions in an attempt to confuse the machinery.
  77   try {
  78     throw 0;
  79   } catch(...) {
  80     exception_ptr ep1 = current_exception();
  81     try {
  82       throw 1;
  83     } catch(...) {
  84       exception_ptr ep2 = current_exception();
  85       try {
  86         rethrow_exception(ep1);
  87       } catch(...) {
  88         try {
  89           rethrow_exception(ep2);
  90         } catch(...) {
  91           try {
  92             rethrow_exception(ep1);
  93           } catch(...) {
  94           }
  95           try {
  96             rethrow_exception(ep2);
  97           } catch(...) {
  98           }
  99         }
 100       }
 101     }
 102   }
 103 }
 104
 105 int main()
 106 {
 107   test01();
 108   test02();
 109   test03();
 110   test04();
 111
 112   return 0;
 113 }