1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
// Copyright (C) 2000 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.
// 27.8.1.3 filebuf member functions
// @require@ %-*.tst %-*.txt
// @diff@ %-*.tst %-*.txt
// various tests for filebuf::open() and filebuf::close() including
// the non-portable functionality in the libstdc++-v3 IO library
#include <fstream>
#include <cassert>
#include <unistd.h>
#include <fcntl.h>
#include <debug_assert.h>
// verify that std::filebuf doesn't close files that it didn't open
// when using the following std::filebuf ctor:
//
// std::filebuf(int __fd,
// const char* __unused,
// ios_base::openmode __mode);
//
// thanks to "George T. Talbot" <george@moberg.com> for uncovering
// this bug/situation.
const char name_01[] = "filebuf_members-1.tst";
const char name_02[] = "filebuf_members-1.txt";
int
test_01()
{
bool test = true;
int close_num;
// read (ext)
FILE* f2 = fopen(name_01, "r");
VERIFY( f2 != NULL );
{
std::filebuf fb(f2, std::ios_base::in, 512);
}
close_num = fclose(f2);
VERIFY( close_num == 0 );
// read (standard)
FILE* f = fopen(name_01, "r");
VERIFY( f != NULL );
{
std::ifstream ifstream1(name_01);
VERIFY( ifstream1.is_open() );
std::ios_base::iostate st01 = ifstream1.rdstate();
VERIFY( st01 == std::ios_base::goodbit );
}
close_num = fclose(f);
VERIFY( close_num == 0 );
#ifdef DEBUG_ASSERT
assert(test);
#endif
return test;
}
int
main()
{
test_01();
return 0;
}
|
