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) 2008-2021 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     VERIFY( typeid(e) == typeid(runtime_error) );
  48     VERIFY( strcmp(e.what(), "test") == 0 );
  49   }
  50 }
  51
  52 void test03()
  53 {
  54   using namespace std;
  55
  56   exception_ptr ep;
  57   try {
  58     throw 0;
  59   } catch(...) {
  60     ep = current_exception();
  61   }
  62   try {
  63     rethrow_exception(ep);
  64   } catch(...) {
  65   }
  66 }
  67
  68 void test04()
  69 {
  70   using namespace std;
  71
  72   // Weave the exceptions in an attempt to confuse the machinery.
  73   try {
  74     throw 0;
  75   } catch(...) {
  76     exception_ptr ep1 = current_exception();
  77     try {
  78       throw 1;
  79     } catch(...) {
  80       exception_ptr ep2 = current_exception();
  81       try {
  82         rethrow_exception(ep1);
  83       } catch(...) {
  84         try {
  85           rethrow_exception(ep2);
  86         } catch(...) {
  87           try {
  88             rethrow_exception(ep1);
  89           } catch(...) {
  90           }
  91           try {
  92             rethrow_exception(ep2);
  93           } catch(...) {
  94           }
  95         }
  96       }
  97     }
  98   }
  99 }
 100
 101 void test05()
 102 {
 103   // libstdc++/64651 std::rethrow_exception not found by ADL
 104   // This is not required to work but is a conforming extension.
 105   try {
 106     rethrow_exception(std::make_exception_ptr(0));
 107   } catch(...) {
 108   }
 109 }
 110
 111 int main()
 112 {
 113   test01();
 114   test02();
 115   test03();
 116   test04();
 117   test05();
 118
 119   return 0;
 120 }