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1 | // 1999-07-26 bkoz |
2 | ||
a5544970 | 3 | // Copyright (C) 1999-2019 Free Software Foundation, Inc. |
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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 | // 27.6.1.2.3 character extractors | |
21 | ||
22 | #include <istream> | |
23 | #include <sstream> | |
24 | #include <testsuite_hooks.h> | |
25 | ||
26 | void test01() | |
27 | { | |
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28 | std::string str_01; |
29 | const std::string str_02("coltrane playing 'softly as a morning sunrise'"); | |
30 | const std::string str_03("coltrane"); | |
31 | ||
32 | std::stringbuf isbuf_01(std::ios_base::in); | |
33 | std::stringbuf isbuf_02(str_02, std::ios_base::in); | |
8fc81078 | 34 | std::istream is_01(0); |
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35 | std::istream 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 | char array1[n]; | |
44 | typedef std::ios::traits_type ctraits_type; | |
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45 | |
46 | // testing with width() control enabled. | |
47 | is_02.width(8); | |
48 | state1 = is_02.rdstate(); | |
49 | is_02 >> array1; // should snake "coltran" | |
50 | state2 = is_02.rdstate(); | |
51 | VERIFY( state1 == state2 ); | |
52 | VERIFY( !ctraits_type::compare(array1, "coltran", 7) ); | |
53 | ||
54 | is_02.width(1); | |
55 | state1 = is_02.rdstate(); | |
56 | is_02 >> array1; // should snake nothing, set failbit | |
57 | state2 = is_02.rdstate(); | |
58 | VERIFY( state1 != state2 ); | |
59 | VERIFY( state2 == statefail ); | |
60 | VERIFY( array1[0] == '\0' ); | |
61 | ||
62 | is_02.width(8); | |
63 | is_02.clear(); | |
64 | state1 = is_02.rdstate(); | |
65 | VERIFY( !state1 ); | |
66 | is_02 >> array1; // should snake "e" | |
67 | state2 = is_02.rdstate(); | |
68 | VERIFY( state1 == state2 ); | |
69 | VERIFY( !ctraits_type::compare(array1, "e", 1) ); | |
70 | ||
71 | // testing for correct exception setting | |
72 | const std::string str_04(" impulse!!"); | |
73 | std::stringbuf isbuf_03(str_04, std::ios_base::in); | |
74 | std::stringbuf isbuf_04(str_04, std::ios_base::in); | |
75 | std::istream is_03(&isbuf_03); | |
76 | std::istream is_04(&isbuf_04); | |
77 | ||
78 | is_03 >> array1; | |
79 | VERIFY( !ctraits_type::compare(array1,"impulse!!", 10) ); | |
80 | VERIFY( is_03.rdstate() == std::ios_base::eofbit ); | |
81 | ||
82 | is_04.width(9); | |
83 | is_04 >> array1; | |
84 | VERIFY( ! std::ios::traits_type::compare(array1,"impulse!", 9) ); | |
85 | VERIFY( !is_04.rdstate() ); | |
86 | } | |
87 | ||
88 | int main() | |
89 | { | |
90 | test01(); | |
91 | return 0; | |
92 | } |