]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/27_io/basic_filebuf/close/char/3.cc
1 // 2001-05-21 Benjamin Kosnik <bkoz@redhat.com>
3 // Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
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 2, or (at your option)
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.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 // 27.8.1.4 Overridden virtual functions
27 #include <sys/types.h>
30 #include <testsuite_hooks.h>
32 // @require@ %-*.tst %-*.txt
33 // @diff@ %-*.tst %*.txt
35 // NB: This test assumes that _M_buf_size == 40, and not the usual
36 // buffer_size length of BUFSIZ (8192), so that overflow/underflow can be
37 // simulated a bit more readily.
38 // NRB (Nota Really Bene): setting it to 40 breaks the test, as intended.
39 const int buffer_size
= 8192;
40 //const int buffer_size = 40;
42 const char carray_01
[] = "santa cruz or sandiego?";
43 const char carray_02
[] = "memphis, new orleans, and savanah";
44 const char name_01
[] = "filebuf_virtuals-1.txt"; // file with data in it
45 const char name_02
[] = "filebuf_virtuals-2.txt"; // empty file, need to create
46 const char name_03
[] = "filebuf_virtuals-3.txt"; // empty file, need to create
47 const char name_04
[] = "filebuf_virtuals-4.txt"; // empty file, need to create
48 const char name_05
[] = "filebuf_virtuals-5.txt"; // empty file, need to create
49 const char name_06
[] = "filebuf_virtuals-6.txt"; // empty file, need to create
50 const char name_07
[] = "filebuf_virtuals-7.txt"; // empty file, need to create
51 const char name_08
[] = "filebuf_virtuals-8.txt"; // empty file, need to create
53 class derived_filebuf
: public std::filebuf
57 set_size(int_type __size
) { _M_buf_size_opt
= __size
; }
60 derived_filebuf fb_01
; // in
61 derived_filebuf fb_02
; // out
62 derived_filebuf fb_03
; // in | out
64 // Initialize filebufs to be the same size regardless of platform.
67 fb_01
.set_size(buffer_size
);
68 fb_02
.set_size(buffer_size
);
69 fb_03
.set_size(buffer_size
);
72 // Test overloaded virtual functions.
75 typedef std::filebuf::int_type int_type
;
76 typedef std::filebuf::traits_type traits_type
;
77 typedef std::filebuf::pos_type pos_type
;
78 typedef std::filebuf::off_type off_type
;
79 typedef size_t size_type
;
83 std::streamsize strmsz_1
, strmsz_2
;
84 std::streamoff strmof_1
, strmof_2
;
85 int i
= 0, j
= 0, k
= 0;
87 fb_01
.open(name_01
, std::ios_base::in
);
88 fb_02
.open(name_02
, std::ios_base::out
| std::ios_base::trunc
);
89 fb_03
.open(name_03
, std::ios_base::out
| std::ios_base::in
| std::ios_base::trunc
);
91 // NB Have to close these suckers. . .
92 // filebuf_type* close()
96 VERIFY( !fb_01
.is_open() );
97 VERIFY( !fb_02
.is_open() );
98 VERIFY( !fb_03
.is_open() );