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f1717362 | 1 | // Copyright (C) 2004-2016 Free Software Foundation, Inc. |
afd3c60a | 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 | |
6bc9506f | 6 | // Free Software Foundation; either version 3, or (at your option) |
afd3c60a | 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 | |
6bc9506f | 15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
afd3c60a | 17 | |
18 | // 27.6.1.3 unformatted input functions | |
19 | ||
b14642ed | 20 | // { dg-require-fileio "" } |
21 | ||
afd3c60a | 22 | #include <istream> |
23 | #include <string> | |
24 | #include <fstream> | |
ceb6f07a | 25 | #include <cstdlib> |
afd3c60a | 26 | #include <testsuite_hooks.h> |
27 | ||
28 | using namespace std; | |
29 | ||
30 | string prepare(string::size_type len, unsigned nchunks, char delim) | |
31 | { | |
32 | string ret; | |
33 | for (unsigned i = 0; i < nchunks; ++i) | |
34 | { | |
35 | for (string::size_type j = 0; j < len; ++j) | |
36 | ret.push_back('a' + rand() % 26); | |
37 | len *= 2; | |
38 | ret.push_back(delim); | |
39 | } | |
40 | return ret; | |
41 | } | |
42 | ||
7b73f71f | 43 | void check(istream& stream, const string& str, unsigned nchunks, char delim) |
afd3c60a | 44 | { |
45 | bool test __attribute__((unused)) = true; | |
46 | ||
47 | char buf[1000000]; | |
48 | string::size_type index = 0, index_new = 0; | |
7b73f71f | 49 | unsigned n = 0; |
afd3c60a | 50 | |
51 | while (stream.getline(buf, sizeof(buf), delim)) | |
52 | { | |
53 | index_new = str.find(delim, index); | |
16171c51 | 54 | VERIFY( static_cast<string::size_type>(stream.gcount()) == |
55 | index_new - index + 1 ); | |
afd3c60a | 56 | VERIFY( !str.compare(index, index_new - index, buf) ); |
57 | index = index_new + 1; | |
7b73f71f | 58 | ++n; |
afd3c60a | 59 | } |
60 | VERIFY( stream.gcount() == 0 ); | |
61 | VERIFY( stream.eof() ); | |
7b73f71f | 62 | VERIFY( n == nchunks ); |
afd3c60a | 63 | } |
64 | ||
65 | void test01() | |
66 | { | |
67 | const char filename[] = "istream_getline.txt"; | |
68 | ||
69 | const char delim = '|'; | |
7b73f71f | 70 | const unsigned nchunks = 10; |
71 | const string data = prepare(777, nchunks, delim); | |
afd3c60a | 72 | |
73 | ofstream ofstrm; | |
74 | ofstrm.open(filename); | |
75 | ofstrm.write(data.data(), data.size()); | |
76 | ofstrm.close(); | |
77 | ||
78 | ifstream ifstrm; | |
79 | ifstrm.open(filename); | |
7b73f71f | 80 | check(ifstrm, data, nchunks, delim); |
afd3c60a | 81 | ifstrm.close(); |
82 | } | |
83 | ||
84 | int main() | |
85 | { | |
86 | test01(); | |
87 | return 0; | |
88 | } |