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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/22_locale/codecvt_members_wchar_t_char.cc
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();
98 VERIFY( i
== 4 ); // Target-dependent.
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
? oldLANG
: "", 1);
131 #endif /* !defined(_GLIBCPP_USE_WCHAR_T) */
136 #if _GLIBCPP_USE_WCHAR_T