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1 | // 2005-07-22 Paolo Carlini <pcarlini@suse.de> |
2 | ||
a945c346 | 3 | // Copyright (C) 2005-2024 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 basic_istream::operator>> | |
21 | ||
5a0727d9 | 22 | // { dg-options "-DMAX_SIZE=466" { target simulator } } |
17abcc77 | 23 | // { dg-do run { target { ! c++20 } } } |
6cec3c81 | 24 | // { dg-require-fileio "" } |
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25 | |
26 | #ifndef MAX_SIZE | |
27 | #define MAX_SIZE 666 | |
28 | #endif | |
29 | ||
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30 | #include <istream> |
31 | #include <string> | |
32 | #include <fstream> | |
debac9f4 | 33 | #include <cstdlib> |
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34 | #include <testsuite_hooks.h> |
35 | ||
36 | using namespace std; | |
37 | ||
38 | wstring prepare(wstring::size_type len, unsigned nchunks) | |
39 | { | |
40 | wstring ret; | |
41 | for (unsigned i = 0; i < nchunks; ++i) | |
42 | { | |
43 | for (wstring::size_type j = 0; j < len; ++j) | |
44 | ret.push_back(L'a' + rand() % 26); | |
45 | len *= 2; | |
46 | ret.push_back(L' '); | |
47 | } | |
48 | return ret; | |
49 | } | |
50 | ||
51 | void check(wistream& stream, const wstring& str, unsigned nchunks) | |
52 | { | |
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53 | wchar_t* chunk = new wchar_t[str.size()]; |
54 | wmemset(chunk, L'X', str.size()); | |
55 | ||
56 | wstring::size_type index = 0, index_new = 0; | |
57 | unsigned n = 0; | |
58 | ||
59 | while (stream >> chunk) | |
60 | { | |
61 | index_new = str.find(' ', index); | |
62 | VERIFY( !str.compare(index, index_new - index, chunk) ); | |
63 | index = index_new + 1; | |
64 | ++n; | |
65 | wmemset(chunk, L'X', str.size()); | |
66 | } | |
67 | VERIFY( stream.eof() ); | |
68 | VERIFY( n == nchunks ); | |
69 | ||
70 | delete[] chunk; | |
71 | } | |
72 | ||
73 | // istream& operator>>(istream&, charT*) | |
74 | void test01() | |
75 | { | |
76 | const char filename[] = "inserters_extractors-4.txt"; | |
77 | ||
78 | const unsigned nchunks = 10; | |
5a0727d9 | 79 | const wstring data = prepare(MAX_SIZE, nchunks); |
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80 | |
81 | wofstream ofstrm; | |
82 | ofstrm.open(filename); | |
83 | ofstrm.write(data.data(), data.size()); | |
84 | ofstrm.close(); | |
85 | ||
86 | wifstream ifstrm; | |
87 | ifstrm.open(filename); | |
88 | check(ifstrm, data, nchunks); | |
89 | ifstrm.close(); | |
90 | } | |
91 | ||
92 | int main() | |
93 | { | |
94 | test01(); | |
95 | return 0; | |
96 | } |