1// 1999-07-01 bkoz
2
3// Copyright (C) 1999-2015 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// 21.3.7.9 inserters and extractors
21
22// NB: This file is predicated on sstreams, istreams, and ostreams
23// working, not to mention other major details like char_traits, and
24// all of the string class.
25
26#include <string>
27#include <sstream>
28#include <testsuite_hooks.h>
29
30// istringstream/stringbuf extractor properly size buffer based on
31// actual, not allocated contents (string.size() vs. string.capacity()).
32// http://gcc.gnu.org/ml/libstdc++/1999-q4/msg00049.html
33void test06(void)
34{
35  bool test __attribute__((unused)) = true;
36
37  typedef std::string::size_type size_type;
38  std::string str01("@silent");
39  size_type i01 = str01.size();
40  size_type i02 = str01.capacity();
41  str01.erase(0, 1);
42  size_type i03 = str01.size();
43  size_type i04 = str01.capacity();
44  VERIFY( i01 - 1 == i03 );
45  VERIFY( i02 >= i04 );
46
47  std::istringstream is(str01);
48  std::string str02;
49  is >> str02 >> std::ws;
50  size_type i05 = str02.size();
51  size_type i06 = str02.capacity();
52  VERIFY( i05 == i03 );
53  VERIFY( i06 <= i04 );
54}
55
56int main()
57{
58  test06();
59  return 0;
60}
61