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1 | // 2004-03-02 Petur Runolfsson <peturr02@ru.is> |
2 | ||
a945c346 | 3 | // Copyright (C) 2004-2024 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 | // 27.4.3 fpos | |
21 | ||
b6b66006 | 22 | // { dg-do compile } |
7cc9022f | 23 | // { dg-require-effective-target hosted } |
0b1d67d2 | 24 | |
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25 | #include <limits> |
26 | #include <iterator> | |
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27 | |
28 | // libstdc++/14320 | |
0b1d67d2 | 29 | |
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30 | typedef std::istreambuf_iterator<char>::difference_type Distance; |
31 | ||
32 | #if __cplusplus >= 201103L | |
33 | static_assert( std::is_integral<Distance>::value, "integral type" ); | |
34 | static_assert( std::is_signed<Distance>::value, "signed integral type" ); | |
35 | #else | |
36 | template<typename> struct SignedInteger { enum { value = 0 }; }; | |
37 | // The C++ standard didn't originally have "long long", however that | |
38 | // type is in the C++11 standard and testing for it allows | |
39 | // ilp32 targets to pass this test when `Distance' is 64 bits. | |
40 | template<> struct SignedInteger<long long int> { enum { value = 1 }; }; | |
41 | template<> struct SignedInteger<long int> { enum { value = 1 }; }; | |
42 | template<> struct SignedInteger<int> { enum { value = 1 }; }; | |
43 | template<> struct SignedInteger<short int> { enum { value = 1 }; }; | |
44 | template<> struct SignedInteger<char> { | |
45 | enum { value = std::numeric_limits<char>::is_signed }; | |
46 | }; | |
47 | template<> struct SignedInteger<wchar_t> { | |
48 | enum { value = std::numeric_limits<wchar_t>::is_signed }; | |
49 | }; | |
50 | ||
51 | char assertion[SignedInteger<Distance>::value ? 1 : -1]; | |
52 | #endif |