1// 2003-05-01 Petur Runolfsson <peturr02@ru.is>
2
3// Copyright (C) 2003-2015 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// { dg-require-fileio "" }
21
22#include <ext/stdio_sync_filebuf.h>
23#include <cstring>
24#include <testsuite_hooks.h>
25
26void test01()
27{
28  using namespace std;
29
30  bool test __attribute__((unused)) = true;
31  const char* c_lit = "black pearl jasmine tea";
32  unsigned size = strlen(c_lit);
33  const char* name = "stdiobuf-1.txt";
34
35  FILE* fout = fopen(name, "w");
36  VERIFY( fwrite(c_lit, 1, size, fout) == size );
37  fclose(fout);
38
39  FILE* fin = fopen(name, "r");
40  __gnu_cxx::stdio_sync_filebuf<char> sbuf(fin);
41
42  VERIFY( sbuf.sgetc() == c_lit[0] );
43  VERIFY( getc(fin) == c_lit[0] );
44  VERIFY( sbuf.sgetc() == c_lit[1] );
45  VERIFY( sbuf.sbumpc() == c_lit[1] );
46  VERIFY( ungetc('Z', fin) == 'Z' );
47  VERIFY( sbuf.sbumpc() == 'Z' );
48  VERIFY( getc(fin) == c_lit[2] );
49  VERIFY( sbuf.sputbackc('X') == 'X' );
50  VERIFY( getc(fin) == 'X' );
51
52  char buf[5];
53  memset(buf, 'x', 5);
54  VERIFY( sbuf.sgetn(buf, 5) == 5 );
55  VERIFY( !memcmp(buf, c_lit + 3, 5) );
56  VERIFY( getc(fin) == c_lit[8] );
57
58  fclose(fin);
59}
60
61int main ()
62{
63  test01();
64  return 0;
65}
66