gomp-20050608-branch/libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/wchar_t/5.cc

   1 // Copyright (C) 2005 Free Software Foundation
   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 2, 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 COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // 27.6.2.5.3 basic_ostream manipulator inserters
  20 //
  21 // _GLIBCXX_RESOLVE_LIB_DEFECTS
  22 // DR 60. What is a formatted input function?
  23 // Inserters for manipulators do not behave as formatted output functions.
  24
  25 #include <ostream>
  26 #include <stdexcept>
  27 #include <testsuite_hooks.h>
  28 #include <testsuite_io.h>
  29
  30 std::wostream& func1(std::wostream&)
  31 { throw std::runtime_error(""); }
  32
  33 std::wios& func2(std::wios&)
  34 { throw std::runtime_error(""); }
  35
  36 std::ios_base& func3(std::ios_base&)
  37 { throw std::runtime_error(""); }
  38
  39 template<typename T>
  40 void test(T& (*f)(T&))
  41 {
  42   bool test __attribute__((unused)) = true;
  43
  44   __gnu_test::sync_wstreambuf buf;
  45   std::wostream os(&buf);
  46
  47   __gnu_test::sync_wstreambuf buf_tie;
  48   std::wostream os_tie(&buf_tie);
  49
  50   // No sentry should be constructed so os.tie()->flush() should not be
  51   // called.
  52   os.tie(&os_tie);
  53
  54   try
  55     {
  56       os << f;
  57       // Exceptions thrown by f should not be caught
  58       VERIFY( false );
  59     }
  60   catch (std::runtime_error&)
  61     {
  62     }
  63
  64   // Exceptions thrown by f should not cause badbit to be set
  65   VERIFY( os.good() );
  66   VERIFY( !buf_tie.sync_called() );
  67
  68   // The manipulator should be called even if !os.good().
  69   os.setstate(std::ios_base::eofbit);
  70
  71   try
  72     {
  73       os << f;
  74       // Exceptions thrown by f should not be caught
  75       VERIFY( false );
  76     }
  77   catch (std::runtime_error&)
  78     {
  79     }
  80
  81   // Exceptions thrown by f should not cause badbit to be set
  82   VERIFY( os.rdstate() == std::ios_base::eofbit );
  83   VERIFY( !buf_tie.sync_called() );
  84 }
  85
  86 void test05()
  87 {
  88   test(&func1);
  89   test(&func2);
  90   test(&func3);
  91 }
  92
  93 int main()
  94 {
  95   test05();
  96   return 0;
  97 }