1 // Compatibility symbols for previous versions, C++0x bits -*- C++ -*-
3 // Copyright (C) 2009, 2010 Free Software Foundation, Inc.
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)
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.
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.
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/>.
28 #include <system_error>
30 #ifndef __GXX_EXPERIMENTAL_CXX0X__
31 # error "compatibility-c++0x.cc must be compiled with -std=gnu++0x"
37 // <mutex> exported std::lock_error
38 #if defined(_GLIBCXX_HAS_GTHREADS) && defined(_GLIBCXX_USE_C99_STDINT_TR1)
39 class lock_error
: public exception
43 _GLIBCXX_CONST
what() const throw();
47 lock_error::what() const throw()
48 { return "std::lock_error"; }
51 // We need these due to the symbols exported since GLIBCXX_3.4.10.
52 // See libstdc++/41662 for details.
53 template<typename _Tp
>
54 struct hash
: public std::unary_function
<_Tp
, size_t>
57 operator()(_Tp __val
) const;
60 /// Dummy generic implementation (for sizeof(size_t) != 4, 8).
61 template<size_t = sizeof(size_t)>
65 hash(const char* __first
, size_t __length
)
68 for (; __length
> 0; --__length
)
69 __result
= (__result
* 131) + *__first
++;
78 hash(const char* __first
, size_t __length
)
80 size_t __result
= static_cast<size_t>(2166136261UL);
81 for (; __length
> 0; --__length
)
83 __result
^= static_cast<size_t>(*__first
++);
84 __result
*= static_cast<size_t>(16777619UL);
94 hash(const char* __first
, size_t __length
)
97 static_cast<size_t>(14695981039346656037ULL);
98 for (; __length
> 0; --__length
)
100 __result
^= static_cast<size_t>(*__first
++);
101 __result
*= static_cast<size_t>(1099511628211ULL);
107 #include "hash-aux.cc"
111 hash
<error_code
>::operator()(error_code __e
) const
113 const char* __p
= reinterpret_cast<const char*>(&__e
);
114 return _Fnv_hash
<>::hash(__p
, sizeof(__e
));