1// Copyright (C) 2004 Free Software Foundation, Inc.
2//
3// This file is part of the GNU ISO C++ Library.  This library is free
4// software; you can redistribute it and/or modify it under the
5// terms of the GNU General Public License as published by the
6// Free Software Foundation; either version 2, or (at your option)
7// any later version.
8
9// This library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License along
15// with this library; see the file COPYING.  If not, write to the Free
16// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
17// USA.
18
19// 27.6.1.2.2 arithmetic extractors
20
21#include <istream>
22#include <sstream>
23#include <locale>
24#include <testsuite_hooks.h>
25
26// libstdc++/3720 part two
27void test13()
28{
29  using namespace std;
30  bool test __attribute__((unused)) = true;
31  const wchar_t* l2 = L"1.2345678901234567890123456789012345678901234567890123456"
32                      L"  "
33                      L"1246.9";
34
35  // 1
36  // used to core.
37  double d;
38  wistringstream iss1(l2);
39  iss1 >> d;
40  iss1 >> d;
41  VERIFY ( d > 1246 && d < 1247 );
42
43  // 2
44  // quick test for failbit on maximum length extraction.
45  int i;
46  int max_digits = numeric_limits<int>::digits10 + 1;
47  wstring digits;
48  for (int j = 0; j < max_digits; ++j)
49    digits += L'1';
50  wistringstream iss2(digits);
51  iss2 >> i;
52  VERIFY( !iss2.fail() );
53
54  digits += L'1';
55  i = 0;
56  iss2.str(digits);
57  iss2.clear();
58  iss2 >> i;
59  VERIFY( i == 0 );
60  VERIFY( iss2.fail() );
61}
62
63int main()
64{
65  test13();
66  return 0;
67}
68