1// 2003-07-06  Benjamin Kosnik  <bkoz@redhat.com>
2
3// Copyright (C) 2003-2015 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#include <locale>
21#include <sstream>
22#include <ostream>
23#include <testsuite_hooks.h>
24
25class numpunct_checked : public std::numpunct<char>
26{
27  typedef std::numpunct<char> base;
28
29public:
30  explicit
31  numpunct_checked(std::size_t refs = 0): base(refs) { }
32
33  string_type
34  base_truename() const
35  { return base::do_truename(); }
36
37protected:
38  virtual string_type
39  do_truename() const
40  { return base::do_truename() + "st"; }
41};
42
43// Changing caches deletes old cache, adds new one.
44void test01()
45{
46  using namespace std;
47
48  bool test __attribute__((unused)) = true;
49  const string 	empty;
50  const string 	basestr("true");
51  const string 	derivedstr("truest");
52
53  const locale 	loc(locale::classic(), new numpunct_checked);
54  stringbuf 	sbuf;
55  ostream 	os(&sbuf);
56  os.setf(ios_base::boolalpha);
57
58  // Pre-cache sanity check.
59  const numpunct<char>& np = use_facet<numpunct<char> >(loc);
60  VERIFY( np.truename() == derivedstr );
61
62  // Cache.
63  os.imbue(loc);
64  os << true;
65  VERIFY( sbuf.str() == derivedstr );
66
67  // Re-cache.
68  sbuf.str(empty);
69  os.imbue(locale::classic());
70  os << true;
71  VERIFY( sbuf.str() == basestr );
72
73  // Cache new locale again.
74  sbuf.str(empty);
75  os.imbue(loc);
76  os << true;
77  VERIFY( sbuf.str() == derivedstr );
78
79  // Post-cache sanity check, make sure that base class is still fine.
80  VERIFY( np.truename() == derivedstr );
81  const numpunct_checked& npd = static_cast<const numpunct_checked&>(np);
82  VERIFY( npd.base_truename() == basestr );
83}
84
85int main()
86{
87  test01();
88  return 0;
89}
90