1// { dg-options "-std=gnu++11" }
2
3// Copyright (C) 2012 Free Software Foundation
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// 22.3.3.2.2  String conversions
21
22#include <locale>
23#include <string>
24#include <testsuite_hooks.h>
25
26template<typename Elem>
27struct cvt : std::codecvt<Elem, char, std::mbstate_t> { };
28
29template<typename Elem>
30using str_conv = std::wstring_convert<cvt<Elem>, Elem>;
31
32using std::string;
33using std::u16string;
34using std::u32string;
35
36// test construction with state, for partial conversions
37
38void test01()
39{
40  typedef str_conv<char> wsc;
41
42  wsc c;
43  string input = u8"\u00a3 shillings pence";
44  string woutput = c.from_bytes(input.substr(0, 1));
45  auto partial_state = c.state();
46  auto partial_count = c.converted();
47
48  auto woutput2 = c.from_bytes(u8"state reset on next conversion");
49  VERIFY( woutput2 == u8"state reset on next conversion" );
50
51  wsc c2(new cvt<char>, partial_state);
52  woutput += c2.from_bytes(input.substr(partial_count));
53  VERIFY( u8"\u00a3 shillings pence" == woutput );
54
55  string roundtrip = c2.to_bytes(woutput);
56  VERIFY( input == roundtrip );
57}
58
59void test02()
60{
61  typedef str_conv<char16_t> wsc;
62
63  wsc c;
64  string input = u8"\u00a3 shillings pence";
65  u16string woutput = c.from_bytes(input.substr(0, 1));
66  auto partial_state = c.state();
67  auto partial_count = c.converted();
68
69  auto woutput2 = c.from_bytes(u8"state reset on next conversion");
70  VERIFY( woutput2 == u"state reset on next conversion" );
71
72  wsc c2(new cvt<char16_t>, partial_state);
73  woutput += c2.from_bytes(input.substr(partial_count));
74  VERIFY( u"\u00a3 shillings pence" == woutput );
75
76  string roundtrip = c2.to_bytes(woutput);
77  VERIFY( input == roundtrip );
78}
79
80void test03()
81{
82  typedef str_conv<char32_t> wsc;
83
84  wsc c;
85  string input = u8"\u00a3 shillings pence";
86  u32string woutput = c.from_bytes(input.substr(0, 1));
87  auto partial_state = c.state();
88  auto partial_count = c.converted();
89
90  auto woutput2 = c.from_bytes(u8"state reset on next conversion");
91  VERIFY( woutput2 == U"state reset on next conversion" );
92
93  wsc c2(new cvt<char32_t>, partial_state);
94  woutput += c2.from_bytes(input.substr(partial_count));
95  VERIFY( U"\u00a3 shillings pence" == woutput );
96
97  string roundtrip = c2.to_bytes(woutput);
98  VERIFY( input == roundtrip );
99}
100
101
102int main()
103{
104  test01();
105  test02();
106  test03();
107}
108