1// 2001-05-21 Benjamin Kosnik  <bkoz@redhat.com>
2
3// Copyright (C) 2001-2015 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library.  This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14// GNU General Public License for more details.
15
16// You should have received a copy of the GNU General Public License along
17// with this library; see the file COPYING3.  If not see
18// <http://www.gnu.org/licenses/>.
19
20// 27.8.1.4 Overridden virtual functions
21
22#include <fstream>
23#include <testsuite_hooks.h>
24#include <testsuite_io.h>
25
26// @require@ %-*.tst %-*.txt
27// @diff@ %-*.tst %*.txt
28
29const char name_01[] = "filebuf_virtuals-1.txt"; // file with data in it
30
31void test05()
32{
33  using namespace std;
34  using namespace __gnu_test;
35
36  typedef filebuf::int_type 	int_type;
37  typedef filebuf::traits_type 	traits_type;
38  typedef size_t 			size_type;
39
40  bool test __attribute__((unused)) = true;
41  streamsize 			strmsz_1;
42
43  // streamsize sputn(const char_typs* s, streamsize n)
44  // write up to n chars to out_cur from s, returning number assigned
45  // NB *sputn will happily put '\0' into your stream if you give it a chance*
46
47  // in
48  {
49    constraint_filebuf fb_01;
50    fb_01.pubsetbuf(0, 0);
51    fb_01.open(name_01, ios_base::in);
52    VERIFY( fb_01.unbuffered() );
53    strmsz_1 = fb_01.sputn("racadabra", 10);
54    VERIFY( strmsz_1 == 0 );
55    VERIFY( fb_01.unbuffered() );
56  }
57}
58
59int main()
60{
61  test05();
62  return 0;
63}
64