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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/22_locale/codecvt/out/wchar_t/7.cc
1 // { dg-require-namedlocale "en_US.ISO8859-1" }
3 // 2003-02-06 Petur Runolfsson <peturr02@ru.is>
5 // Copyright (C) 2003-2020 Free Software Foundation, Inc.
7 // This file is part of the GNU ISO C++ Library. This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING3. If not see
20 // <http://www.gnu.org/licenses/>.
22 // 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
26 #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...
38 zero_state(std::mbstate_t& state
)
39 { std::memset(&state
, 0, sizeof(std::mbstate_t)); }
41 // Required instantiation
42 // codecvt<wchar_t, char, mbstate_t>
46 typedef codecvt
<wchar_t, char, mbstate_t> w_codecvt
;
47 typedef codecvt_base::result result
;
48 typedef wchar_t int_type
;
49 typedef char ext_type
;
50 typedef char_traits
<char> ext_traits
;
52 const ext_type
* e_lit
= "a";
53 const int_type i_lit
[] = { L
'a', 0x20ac, 0x0 };
54 const int_type
* ifrom_next
;
55 int size
= wcslen(i_lit
);
56 ext_type
* e_arr
= new ext_type
[size
+ 1];
57 ext_type
* e_ref
= new ext_type
[size
+ 1];
58 memset(e_arr
, 0xf0, size
+ 1);
59 memset(e_ref
, 0xf0, size
+ 1);
62 locale loc
= locale(ISO_8859(1,en_US
));
64 const w_codecvt
* cvt
= &use_facet
<w_codecvt
>(loc
);
67 w_codecvt::state_type state02
;
69 result r2
= cvt
->out(state02
, i_lit
, i_lit
+ size
, ifrom_next
,
70 e_arr
, e_arr
+ size
, eto_next
);
71 VERIFY( r2
== codecvt_base::error
);
72 VERIFY( ifrom_next
== i_lit
+ 1 );
73 VERIFY( eto_next
== e_arr
+ 1 );
74 VERIFY( !ext_traits::compare(e_arr
, e_lit
, 1) );
75 VERIFY( !ext_traits::compare(eto_next
, e_ref
, size
) );