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

   1 // { dg-do run { target c++11 } }
   2
   3 // 2008-05-25  Sebastian Redl  <sebastian.redl@getdesigned.at>
   4
   5 // Copyright (C) 2008-2024 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 // 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   using namespace std;
  33
  34   try {
  35     rethrow_exception(make_exception_ptr(0));
  36   } catch(...) {
  37   }
  38 }
  39
  40 void test02()
  41 {
  42   using namespace std;
  43
  44   try {
  45     rethrow_exception(make_exception_ptr(runtime_error("test")));
  46   } catch(exception &e) {
  47 #if __cpp_rtti
  48     VERIFY( typeid(e) == typeid(runtime_error) );
  49 #endif
  50     VERIFY( strcmp(e.what(), "test") == 0 );
  51   }
  52 }
  53
  54 void test03()
  55 {
  56   using namespace std;
  57
  58   exception_ptr ep;
  59   try {
  60     throw 0;
  61   } catch(...) {
  62     ep = current_exception();
  63   }
  64   try {
  65     rethrow_exception(ep);
  66   } catch(...) {
  67   }
  68 }
  69
  70 void test04()
  71 {
  72   using namespace std;
  73
  74   // Weave the exceptions in an attempt to confuse the machinery.
  75   try {
  76     throw 0;
  77   } catch(...) {
  78     exception_ptr ep1 = current_exception();
  79     try {
  80       throw 1;
  81     } catch(...) {
  82       exception_ptr ep2 = current_exception();
  83       try {
  84         rethrow_exception(ep1);
  85       } catch(...) {
  86         try {
  87           rethrow_exception(ep2);
  88         } catch(...) {
  89           try {
  90             rethrow_exception(ep1);
  91           } catch(...) {
  92           }
  93           try {
  94             rethrow_exception(ep2);
  95           } catch(...) {
  96           }
  97         }
  98       }
  99     }
 100   }
 101 }
 102
 103 void test05()
 104 {
 105   // libstdc++/64651 std::rethrow_exception not found by ADL
 106   // This is not required to work but is a conforming extension.
 107   try {
 108     rethrow_exception(std::make_exception_ptr(0));
 109   } catch(...) {
 110   }
 111 }
 112
 113 int main()
 114 {
 115   test01();
 116   test02();
 117   test03();
 118   test04();
 119   test05();
 120
 121   return 0;
 122 }