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// Copyright (C) 2003-2018 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
// { dg-require-fileio "" }
#include <fstream>
#include <cstdio>
#include <cstring>
#include <testsuite_hooks.h>
// libstdc++/12875
void test01()
{
using namespace std;
const char* name = "tmp_setbuf4";
static char buf[1024];
FILE* out = fopen(name, "w");
fputs("Hello, world", out);
fclose(out);
filebuf in;
in.open(name, ios_base::in);
char str[256];
streamsize r = in.sgetn(str, 6);
VERIFY( r == 6 );
VERIFY( !memcmp(str, "Hello,", 6) );
in.pubsetbuf(buf, 1024);
r = in.sgetn(str, 6);
VERIFY( r == 6 );
VERIFY( !memcmp(str, " world", 6) );
in.close();
}
// libstdc++/12875
int main()
{
test01();
return 0;
}
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