1 // 2000-08-18 Benjamin Kosnik <bkoz@cygnus.com>
3 // Copyright (C) 2000, 2002 Free Software Foundation
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 2, or (at your option)
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.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 // 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
23 #include <cwchar> // for mbstate_t
25 #include <testsuite_hooks.h>
28 // Need to explicitly set the state(mbstate_t) to zero.
29 // How to do this is not specified by the ISO C99 standard, so we
30 // might need to add some operators to make the intuiative case
32 // w_codecvt::state_type state00;
34 // or, can use this explicit "C" initialization:
35 // w_codecvt::state_type state01 = {0, 0};
36 // .. except Ulrich says: Use memset. Always use memset. Feel the force...
37 #ifdef _GLIBCPP_USE_WCHAR_T
39 zero_state(std::mbstate_t& state)
40 { std::memset(&state, 0, sizeof(std::mbstate_t)); }
42 // Required instantiation
43 // codecvt<wchar_t, char, mbstate_t>
47 typedef codecvt<wchar_t, char, mbstate_t> w_codecvt;
48 typedef codecvt_base::result result;
49 typedef wchar_t int_type;
50 typedef char ext_type;
51 typedef char_traits<wchar_t> int_traits;
52 typedef char_traits<char> ext_traits;
55 const ext_type* e_lit = "black pearl jasmine tea";
56 const ext_type* efrom_next;
57 const int_type* i_lit = L"black pearl jasmine tea";
58 const int_type* ifrom_next;
59 int size = strlen(e_lit);
60 ext_type* e_arr = new ext_type[size + 1];
62 int_type* i_arr = new int_type[size + 1];
66 const w_codecvt* cvt = &use_facet<w_codecvt>(loc);
69 w_codecvt::state_type state01;
71 result r1 = cvt->in(state01, e_lit, e_lit + size, efrom_next,
72 i_arr, i_arr + size, ito_next);
73 VERIFY( r1 == codecvt_base::ok );
74 VERIFY( !int_traits::compare(i_arr, i_lit, size) );
75 VERIFY( efrom_next == e_lit + size );
76 VERIFY( ito_next == i_arr + size );
79 w_codecvt::state_type state02;
81 result r2 = cvt->out(state02, i_lit, i_lit + size, ifrom_next,
82 e_arr, e_arr + size, eto_next);
83 VERIFY( r2 == codecvt_base::ok );
84 VERIFY( !ext_traits::compare(e_arr, e_lit, size) );
85 VERIFY( ifrom_next == i_lit + size );
86 VERIFY( eto_next == e_arr + size );
90 w_codecvt::state_type state03;
92 result r3 = cvt->unshift(state03, e_arr, e_arr + size, eto_next);
93 VERIFY( r3 == codecvt_base::noconv );
94 VERIFY( !strcmp(e_arr, e_lit) );
95 VERIFY( eto_next == e_arr );
97 int i = cvt->encoding();
100 VERIFY( !cvt->always_noconv() );
102 w_codecvt::state_type state04;
104 int j = cvt->length(state03, e_lit, e_lit + size, 5);
107 int k = cvt->max_length();
117 #ifdef _GLIBCPP_HAVE_SETENV
118 // Set the global locale to non-"C".
119 std::locale loc_de("de_DE");
120 std::locale::global(loc_de);
122 // Set LANG environment variable to de_DE.
123 const char* oldLANG = getenv("LANG");
124 if (!setenv("LANG", "de_DE", 1))
127 setenv("LANG", oldLANG, 1);
131 #endif /* !defined(_GLIBCPP_USE_WCHAR_T) */
136 #if _GLIBCPP_USE_WCHAR_T