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// 2003-04-26 Petur Runolfsson <peturr02@ru.is>
// Copyright (C) 2003, 2004, 2009 Free Software Foundation
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 27.3 Standard iostream objects
// Check that standard streams can be used from constructors and
// destructors of static objects, provided that an instance of
// ios_base::Init has been constructed.
void init_standard_streams();
int use_standard_streams();
struct Strange
{
int i;
Strange()
{
init_standard_streams();
i = use_standard_streams();
}
~Strange()
{
use_standard_streams();
init_standard_streams();
}
};
static Strange static_ob;
#include <testsuite_hooks.h>
#include <iostream>
void init_standard_streams()
{
std::ios_base::Init init;
}
int use_standard_streams()
{
std::cout << "Hello, world!" << std::endl;
std::cerr << "World, hello!" << std::endl;
int ret = std::ios_base::xalloc();
std::cin.iword(ret) = ret + 1;
std::cout.iword(ret) = ret + 2;
std::cerr.iword(ret) = ret + 3;
std::clog.iword(ret) = ret + 4;
return ret;
}
void test05()
{
bool test __attribute__((unused)) = true;
int i = static_ob.i;
VERIFY( std::cin.iword(i) == i + 1 );
VERIFY( std::cout.iword(i) == i + 2 );
VERIFY( std::cerr.iword(i) == i + 3 );
VERIFY( std::clog.iword(i) == i + 4 );
}
int main()
{
test05();
return 0;
}
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