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99dee823 | 1 | // Copyright (C) 2004-2021 Free Software Foundation, Inc. |
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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 | |
748086b7 | 6 | // Free Software Foundation; either version 3, or (at your option) |
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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 | |
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15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
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062bf895 | 18 | |
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19 | // 27.6.1.3 unformatted input functions |
20 | ||
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21 | #include <cstring> // for strlen |
22 | #include <istream> | |
23 | #include <testsuite_hooks.h> | |
24 | ||
25 | class Inbuf : public std::streambuf | |
26 | { | |
27 | static const char buf[]; | |
28 | const char* current; | |
29 | int size; | |
30 | ||
31 | public: | |
32 | Inbuf() | |
33 | { | |
34 | current = buf; | |
35 | size = std::strlen(buf); | |
36 | } | |
37 | ||
38 | int_type underflow() | |
39 | { | |
40 | if (current < buf + size) | |
41 | return traits_type::to_int_type(*current); | |
42 | return traits_type::eof(); | |
43 | } | |
44 | ||
45 | int_type uflow() | |
46 | { | |
47 | if (current < buf + size) | |
48 | return traits_type::to_int_type(*current++); | |
49 | return traits_type::eof(); | |
50 | } | |
51 | }; | |
52 | ||
53 | const char Inbuf::buf[] = "1234567890abcdefghij"; | |
54 | ||
55 | void test01() | |
56 | { | |
57 | using namespace std; | |
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58 | |
59 | typedef char_traits<char> traits_type; | |
60 | ||
61 | Inbuf inbuf1; | |
62 | istream is(&inbuf1); | |
63 | ||
64 | char buffer[10]; | |
65 | traits_type::assign(buffer, sizeof(buffer), 'X'); | |
66 | ||
67 | is.getline(buffer, sizeof(buffer), '0'); | |
68 | VERIFY( is.rdstate() == ios_base::goodbit ); | |
69 | VERIFY( !traits_type::compare(buffer, "123456789\0", sizeof(buffer)) ); | |
70 | VERIFY( is.gcount() == 10 ); | |
71 | ||
72 | is.clear(); | |
73 | traits_type::assign(buffer, sizeof(buffer), 'X'); | |
74 | is.getline(buffer, sizeof(buffer)); | |
75 | VERIFY( is.rdstate() == ios_base::failbit ); | |
76 | VERIFY( !traits_type::compare(buffer, "abcdefghi\0", sizeof(buffer)) ); | |
77 | VERIFY( is.gcount() == 9 ); | |
78 | ||
79 | is.clear(); | |
80 | traits_type::assign(buffer, sizeof(buffer), 'X'); | |
81 | is.getline(buffer, sizeof(buffer)); | |
82 | VERIFY( is.rdstate() == ios_base::eofbit ); | |
83 | VERIFY( !traits_type::compare(buffer, "j\0XXXXXXXX", sizeof(buffer)) ); | |
84 | VERIFY( is.gcount() == 1 ); | |
85 | ||
86 | is.clear(); | |
87 | traits_type::assign(buffer, sizeof(buffer), 'X'); | |
88 | is.getline(buffer, sizeof(buffer)); | |
89 | VERIFY( is.rdstate() == (ios_base::eofbit | ios_base::failbit) ); | |
90 | VERIFY( !traits_type::compare(buffer, "\0XXXXXXXXX", sizeof(buffer)) ); | |
91 | VERIFY( is.gcount() == 0 ); | |
92 | } | |
93 | ||
94 | int main() | |
95 | { | |
96 | test01(); | |
97 | return 0; | |
98 | } |