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1 | // Copyright (C) 2004 Free Software Foundation |
2 | // | |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6 | // Free Software Foundation; either version 2, or (at your option) | |
7 | // any later version. | |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
15 | // with this library; see the file COPYING. If not, write to the Free | |
16 | // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
17 | // USA. | |
18 | ||
19 | // 27.6.1.2.3 character extractors | |
20 | ||
21 | #include <istream> | |
22 | #include <sstream> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | void test01() | |
26 | { | |
27 | bool test __attribute__((unused)) = true; | |
28 | std::wstring str_01; | |
29 | const std::wstring str_02(L"coltrane playing 'softly as a morning sunrise'"); | |
30 | const std::wstring str_03(L"coltrane"); | |
31 | ||
32 | std::wstringbuf isbuf_01(std::ios_base::in); | |
33 | std::wstringbuf isbuf_02(str_02, std::ios_base::in); | |
34 | std::wistream is_01(NULL); | |
35 | std::wistream is_02(&isbuf_02); | |
36 | ||
37 | std::ios_base::iostate state1, state2, statefail; | |
38 | statefail = std::ios_base::failbit; | |
39 | ||
40 | // template<_CharT, _Traits> | |
41 | // basic_istream& operator>>(istream&, _CharT*) | |
42 | int n = 20; | |
43 | wchar_t array1[n]; | |
44 | typedef std::wios::traits_type ctraits_type; | |
45 | ctraits_type::int_type i1, i2; | |
46 | ||
47 | state1 = is_01.rdstate(); | |
48 | i1 = ctraits_type::length(array1); | |
49 | is_01 >> array1; // should snake 0 characters, not alter stream state | |
50 | i2 = ctraits_type::length(array1); | |
51 | state2 = is_01.rdstate(); | |
52 | VERIFY( i1 == i2 ); | |
53 | VERIFY( state1 != state2 ); | |
54 | VERIFY( static_cast<bool>(state2 & statefail) ); | |
55 | ||
56 | state1 = is_02.rdstate(); | |
57 | is_02 >> array1; // should snake L"coltrane" | |
58 | state2 = is_02.rdstate(); | |
59 | VERIFY( state1 == state2 ); | |
60 | VERIFY( !static_cast<bool>(state2 & statefail) ); | |
61 | VERIFY( array1[str_03.size() - 1] == L'e' ); | |
62 | array1[str_03.size()] = L'\0'; | |
63 | VERIFY( !str_03.compare(0, str_03.size(), array1) ); | |
64 | std::wistream::int_type int1 = is_02.peek(); // should be L' ' | |
65 | VERIFY( int1 == L' ' ); | |
66 | ||
67 | state1 = is_02.rdstate(); | |
68 | is_02 >> array1; // should snake L"playing" as sentry "eats" ws | |
69 | state2 = is_02.rdstate(); | |
70 | int1 = is_02.peek(); // should be L' ' | |
71 | VERIFY( int1 == L' ' ); | |
72 | VERIFY( state1 == state2 ); | |
73 | VERIFY( !static_cast<bool>(state2 & statefail) ); | |
74 | } | |
75 | ||
76 | int main() | |
77 | { | |
78 | test01(); | |
79 | return 0; | |
80 | } |