]>
git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/27_io/basic_stringbuf/seekpos/wchar_t/3.cc
1 // 2003-05-30 Paolo Carlini <pcarlini@unitus.it>
3 // Copyright (C) 2003-2022 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 3, 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 COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
21 #include <testsuite_hooks.h>
26 typedef wstringbuf::pos_type pos_type
;
27 typedef wstringbuf::off_type off_type
;
29 wstringbuf
strb_01(ios_base::out
);
31 strb_01
.sputn(L
"broken peak", 11);
32 pos_type pt_1
= strb_01
.pubseekoff(0, ios_base::end
, ios_base::out
);
34 // In general, according to 27.7.1.3,14, the below has undefined
35 // behaviour since pt_1 + off_type(1) doesn't come from a
36 // previous pubseekpos or pubseekoff. However, given v3 implementation,
37 // this was useful to expose a bug in pubseekpos checks.
38 pos_type pt_2
= strb_01
.pubseekpos(pt_1
+ off_type(1), ios_base::out
);
39 VERIFY( pt_2
== pos_type(off_type(-1)) );