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// 2001-06-05 Benjamin Kosnik <bkoz@redhat.com>
// Copyright (C) 2001, 2002 Free Software Foundation, Inc.
//
// 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 2, 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 COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// As a special exception, you may use this file as part of a free software
// library without restriction. Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License. This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.
// 27.4.2.1.6 class ios_base::init
#include <fstream>
#include <sstream>
#include <iostream>
#include <testsuite_hooks.h>
class gnu_filebuf: public std::filebuf
{
int i;
public:
gnu_filebuf(int j = 1): i(j) { }
~gnu_filebuf() { --i; }
int get_i() { return i;}
};
const int initial = 4;
gnu_filebuf buf(initial);
// libstdc++/3045, in a vague way.
void test01()
{
bool test = true;
int k1;
// 1 normal
k1 = buf.get_i();
VERIFY( k1 == initial );
{
std::cout.rdbuf(&buf);
}
k1 = buf.get_i();
VERIFY( k1 == initial );
// 2 syncd off
k1 = buf.get_i();
VERIFY( k1 == initial );
{
std::cout.rdbuf(&buf);
std::ios_base::sync_with_stdio(false); // make sure doesn't clobber buf
}
k1 = buf.get_i();
VERIFY( k1 == initial );
// 3 callling init
k1 = buf.get_i();
VERIFY( k1 == initial );
{
std::cout.rdbuf(&buf);
std::ios_base::Init make_sure_initialized;
}
k1 = buf.get_i();
VERIFY( k1 == initial );
}
// Non-required instantiations don't have the required facets inbued,
// by default, into the locale object. As such, basic_ios::init is
// required to return a bad_cast for the first use of fill() call.
// See 27.4.4.1
void test02()
{
bool test = true;
// 01: Doesn't call basic_ios::init, which uses ctype<char_type>..
try
{
std::basic_ostringstream<unsigned short> oss;
}
catch(...)
{
test = false;
}
// 02: Calls basic_ios::init, which uses ctype<char_type>..
try
{
std::basic_string<unsigned short> str;
std::basic_ostringstream<unsigned short> oss(str);
// Shouldn't get this far.
test = false;
// Try each member functions for unformatted io.
// put
oss.put(324);
// write
const unsigned short us[4] = {1246, 433, 520, 0};
oss.write(us, 4);
// flush
oss.flush();
}
catch(const std::bad_cast& obj)
{
test = true;
}
catch(...)
{
test = false;
}
VERIFY( test );
}
// Explicitly instantiate for systems with no COMDAT or weak support.
template
std::basic_string<unsigned short>::size_type
std::basic_string<unsigned short>::_Rep::_S_max_size;
template
unsigned short
std::basic_string<unsigned short>::_Rep::_S_terminal;
int main()
{
test01();
test02();
return 0;
}
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