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// { dg-require-namedlocale "se_NO.UTF-8" }
// 2003-09-08 Petur Runolfsson <peturr02@ru.is>
// Copyright (C) 2003-2016 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 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/>.
// 27.8.1.4 Overridden virtual functions
#include <fstream>
#include <locale>
#include <cstdio>
#include <testsuite_hooks.h>
// Check that basic_filebuf::seekoff handles UTF-8 when open for input and
// output.
void test02()
{
using namespace std;
typedef wfilebuf::int_type int_type;
bool test __attribute__((unused)) = true;
const char name[] = "tmp_seekoff-2.tst";
locale loc = locale("se_NO.UTF-8");
const size_t size = 10;
wchar_t buf[size];
streamsize n;
wfilebuf fb;
fb.pubimbue(loc);
fb.open(name, ios_base::in | ios_base::out | ios_base::trunc);
n = fb.sputn(L"\xa0st", 3);
VERIFY( n == 3 );
fb.pubseekoff(0, ios_base::beg);
n = fb.sgetn(buf, 2);
VERIFY( n == 2 );
VERIFY( !wmemcmp(buf, L"\xa0s", 2) );
fb.pubseekoff(0, ios_base::cur);
n = fb.sputn(L"\xb2R", 2);
VERIFY( n == 2 );
fb.pubseekoff(0, ios_base::beg);
n = fb.sgetn(buf, size);
VERIFY( n == 4 );
VERIFY( !wmemcmp(buf, L"\xa0s\xb2R", 4) );
fb.pubseekoff(0, ios_base::beg);
n = fb.sputn(L"\x90m\x92n\x94", 5);
VERIFY( n == 5 );
fb.pubseekoff(0, ios_base::beg);
n = fb.sgetn(buf, 2);
VERIFY( n == 2 );
VERIFY( !wmemcmp(buf, L"\x90m", 2) );
fb.pubseekoff(0, ios_base::end);
n = fb.sputn(L"I\xbfJ", 3);
VERIFY( n == 3 );
fb.pubseekoff(0, ios_base::beg);
n = fb.sgetn(buf, size);
VERIFY( n == 8 );
VERIFY( !wmemcmp(buf, L"\x90m\x92n\x94I\xbfJ", 8) );
fb.close();
}
int main()
{
test02();
return 0;
}
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