1 // 2003-05-30 Paolo Carlini <pcarlini@unitus.it>
2
3 // Copyright (C) 2003-2018 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 #include <sstream>
21 #include <testsuite_hooks.h>
22
test01()23 void test01()
24 {
25 using namespace std;
26 typedef stringbuf::pos_type pos_type;
27 typedef stringbuf::off_type off_type;
28
29 stringbuf strb_01(ios_base::out);
30
31 strb_01.sputn("broken peak", 11);
32 pos_type pt_1 = strb_01.pubseekoff(0, ios_base::end, ios_base::out);
33
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)) );
40 }
41
main()42 int main()
43 {
44 test01();
45 return 0;
46 }
47