libstdc++-v3/testsuite/27_io/ios_base/failure/error_code.cc

   1 // Copyright (C) 2020-2023 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++11 } }
  19
  20 #include <ios>
  21 #include <testsuite_hooks.h>
  22
  23 void
  24 test01()
  25 {
  26   std::error_code ec, def_ec;
  27 #if _GLIBCXX_USE_CXX11_ABI
  28   // For the new ABI code() should return the constructor argument.
  29   ec = std::make_error_code(std::errc::executable_format_error);
  30   def_ec = std::io_errc::stream;
  31 #else
  32   // For the old ABI code() always returns a default-constructed error_code.
  33 #endif
  34   std::ios_base::failure e1("string literal");
  35   VERIFY( e1.code() == def_ec );
  36   std::ios_base::failure e2(std::string("std::string"));
  37   VERIFY( e2.code() == def_ec );
  38   std::ios_base::failure e3("string literal", ec);
  39   VERIFY( e3.code() == ec );
  40   std::ios_base::failure e4(std::string("std::string"), ec);
  41   VERIFY( e4.code() == ec );
  42 }
  43
  44 [[gnu::noinline,gnu::noipa]]
  45 const std::error_category&
  46 get_iostream_category()
  47 { return std::iostream_category(); }
  48
  49 void
  50 test02()
  51 {
  52   auto ec = std::make_error_code(std::io_errc::stream);
  53   VERIFY( ec.category() == get_iostream_category() );
  54 }
  55
  56 int
  57 main()
  58 {
  59   test01();
  60   test02();
  61 }