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a5544970 | 1 | // Copyright (C) 2004-2019 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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17 | |
18 | // 27.6.1.2.2 arithmetic extractors | |
19 | ||
20 | #include <istream> | |
21 | #include <sstream> | |
22 | #include <locale> | |
6725add5 | 23 | #include <limits> |
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24 | #include <testsuite_hooks.h> |
25 | ||
26 | // libstdc++/3720 part two | |
27 | void test13() | |
28 | { | |
29 | using namespace std; | |
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30 | const wchar_t* l2 = L"1.2345678901234567890123456789012345678901234567890123456" |
31 | L" " | |
32 | L"1246.9"; | |
33 | ||
34 | // 1 | |
35 | // used to core. | |
36 | double d; | |
37 | wistringstream iss1(l2); | |
38 | iss1 >> d; | |
39 | iss1 >> d; | |
40 | VERIFY ( d > 1246 && d < 1247 ); | |
41 | ||
42 | // 2 | |
43 | // quick test for failbit on maximum length extraction. | |
44 | int i; | |
45 | int max_digits = numeric_limits<int>::digits10 + 1; | |
46 | wstring digits; | |
47 | for (int j = 0; j < max_digits; ++j) | |
48 | digits += L'1'; | |
49 | wistringstream iss2(digits); | |
50 | iss2 >> i; | |
51 | VERIFY( !iss2.fail() ); | |
52 | ||
53 | digits += L'1'; | |
54 | i = 0; | |
55 | iss2.str(digits); | |
56 | iss2.clear(); | |
57 | iss2 >> i; | |
6f0398bb | 58 | VERIFY( i == numeric_limits<int>::max() ); |
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59 | VERIFY( iss2.fail() ); |
60 | } | |
61 | ||
62 | int main() | |
63 | { | |
64 | test13(); | |
65 | return 0; | |
66 | } |