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c910ceff JW |
1 | // future -*- C++ -*- |
2 | ||
6ad86a5b | 3 | // Copyright (C) 2009, 2010 Free Software Foundation, Inc. |
c910ceff JW |
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 | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
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 | // Under Section 7 of GPL version 3, you are granted additional | |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License and | |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
24 | ||
25 | #include <future> | |
26 | ||
c910ceff JW |
27 | namespace |
28 | { | |
29 | struct future_error_category : public std::error_category | |
30 | { | |
6ad86a5b FC |
31 | future_error_category() {} |
32 | ||
c910ceff JW |
33 | virtual const char* |
34 | name() const | |
35 | { return "future"; } | |
36 | ||
37 | virtual std::string message(int __ec) const | |
38 | { | |
39 | std::string __msg; | |
40 | switch (std::future_errc(__ec)) | |
41 | { | |
42 | case std::future_errc::broken_promise: | |
43 | __msg = "Broken promise"; | |
44 | break; | |
45 | case std::future_errc::future_already_retrieved: | |
46 | __msg = "Future already retrieved"; | |
47 | break; | |
48 | case std::future_errc::promise_already_satisfied: | |
49 | __msg = "Promise already satisfied"; | |
50 | break; | |
51 | default: | |
52 | __msg = "Unknown error"; | |
53 | break; | |
54 | } | |
55 | return __msg; | |
56 | } | |
57 | }; | |
58 | ||
59 | const future_error_category& | |
60 | __future_category_instance() | |
61 | { | |
62 | static const future_error_category __fec; | |
63 | return __fec; | |
64 | } | |
65 | } | |
66 | ||
12ffa228 BK |
67 | namespace std _GLIBCXX_VISIBILITY(default) |
68 | { | |
69 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
53dc5044 | 70 | |
94a86be0 BK |
71 | const error_category& future_category() |
72 | { return __future_category_instance(); } | |
8d1b99e2 BK |
73 | |
74 | future_error::~future_error() throw() { } | |
75 | ||
76 | const char* | |
77 | future_error::what() const throw() { return _M_code.message().c_str(); } | |
53dc5044 | 78 | |
12ffa228 BK |
79 | _GLIBCXX_END_NAMESPACE_VERSION |
80 | } // namespace | |
5b824b76 JW |
81 | |
82 | // XXX GLIBCXX_ABI Deprecated | |
83 | // gcc-4.6.0 | |
84 | // <future> export changes | |
85 | #if defined(_GLIBCXX_SYMVER_GNU) && defined(PIC) \ | |
86 | && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \ | |
87 | && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT) | |
88 | ||
12ffa228 | 89 | namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) |
5b824b76 JW |
90 | { |
91 | const std::error_category* future_category = &__future_category_instance(); | |
92 | } | |
93 | ||
94 | #define _GLIBCXX_ASM_SYMVER(cur, old, version) \ | |
95 | asm (".symver " #cur "," #old "@@@" #version); | |
96 | ||
97 | _GLIBCXX_ASM_SYMVER(_ZN9__gnu_cxx15future_categoryE, _ZSt15future_category, GLIBCXX_3.4.14) | |
98 | ||
99 | #endif | |
100 |