1// 1999-07-01 bkoz
2
3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2009
4// Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21// 21.3.7.9 inserters and extractors
22
23// NB: This file is predicated on sstreams, istreams, and ostreams
24// working, not to mention other major details like char_traits, and
25// all of the string class.
26
27#include <string>
28#include <sstream>
29#include <testsuite_hooks.h>
30
31// istringstream/stringbuf extractor properly size buffer based on
32// actual, not allocated contents (string.size() vs. string.capacity()).
33// http://gcc.gnu.org/ml/libstdc++/1999-q4/msg00049.html
34void test06(void)
35{
36  bool test __attribute__((unused)) = true;
37
38  typedef std::string::size_type size_type;
39  std::string str01("@silent");
40  size_type i01 = str01.size();
41  size_type i02 = str01.capacity();
42  str01.erase(0, 1);
43  size_type i03 = str01.size();
44  size_type i04 = str01.capacity();
45  VERIFY( i01 - 1 == i03 );
46  VERIFY( i02 >= i04 );
47
48  std::istringstream is(str01);
49  std::string str02;
50  is >> str02 >> std::ws;
51  size_type i05 = str02.size();
52  size_type i06 = str02.capacity();
53  VERIFY( i05 == i03 );
54  VERIFY( i06 <= i04 );
55}
56
57int main()
58{
59  test06();
60  return 0;
61}
62