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1 | // 2003-02-06 Petur Runolfsson <peturr02@ru.is> |
2 | ||
748086b7 | 3 | // Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009 Free Software Foundation |
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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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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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 | |
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17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 22.2.1.5 - Template class codecvt [lib.locale.codecvt] | |
21 | ||
22 | #include <locale> | |
1b716e90 | 23 | #include <cstring> |
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24 | #include <testsuite_hooks.h> |
25 | ||
26 | // Need to explicitly set the state(mbstate_t) to zero. | |
27 | // How to do this is not specified by the ISO C99 standard, so we | |
28 | // might need to add some operators to make the intuiative case | |
29 | // work: | |
30 | // w_codecvt::state_type state00; | |
31 | // state00 = 0; | |
32 | // or, can use this explicit "C" initialization: | |
33 | // w_codecvt::state_type state01 = {0, 0}; | |
34 | // .. except Ulrich says: Use memset. Always use memset. Feel the force... | |
35 | void | |
36 | zero_state(std::mbstate_t& state) | |
37 | { std::memset(&state, 0, sizeof(std::mbstate_t)); } | |
38 | ||
39 | // Required instantiation | |
40 | // codecvt<wchar_t, char, mbstate_t> | |
41 | // | |
42 | // Test handling of output buffer that is too small. | |
43 | // libstdc++/9247 | |
44 | void test06() | |
45 | { | |
46 | using namespace std; | |
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 | ||
11f10e6b | 53 | bool test __attribute__((unused)) = true; |
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54 | const ext_type* e_lit = "black pearl jasmine tea"; |
55 | const ext_type* efrom_next; | |
56 | const int_type* i_lit = L"black pearl jasmine tea"; | |
4c63b782 | 57 | size_t size = strlen(e_lit); |
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58 | int_type* i_arr = new int_type[size + 1]; |
59 | int_type* i_ref = new int_type[size + 1]; | |
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60 | wmemset(i_arr, static_cast<wchar_t>(0xdeadbeef), size + 1); |
61 | wmemset(i_ref, static_cast<wchar_t>(0xdeadbeef), size + 1); | |
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62 | int_type* ito_next; |
63 | ||
64 | locale loc; | |
65 | const w_codecvt* cvt = &use_facet<w_codecvt>(loc); | |
66 | ||
67 | // in | |
68 | w_codecvt::state_type state01; | |
69 | zero_state(state01); | |
70 | result r1 = cvt->in(state01, e_lit, e_lit + size, efrom_next, | |
71 | i_arr, i_arr + 1, ito_next); | |
72 | VERIFY( r1 == codecvt_base::partial ); | |
73 | VERIFY( efrom_next == e_lit + 1 ); | |
74 | VERIFY( ito_next == i_arr + 1 ); | |
75 | VERIFY( !int_traits::compare(i_arr, i_lit, 1) ); | |
76 | VERIFY( !int_traits::compare(ito_next, i_ref, size) ); | |
77 | ||
78 | delete [] i_arr; | |
79 | delete [] i_ref; | |
80 | } | |
81 | ||
82 | int main () | |
83 | { | |
84 | test06(); | |
85 | return 0; | |
86 | } |