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1 // -*- C++ -*- header.
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2
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131
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3 // Copyright (C) 2008-2018 Free Software Foundation, Inc.
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4 //
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5 // This file is part of the GNU ISO C++ Library. This library is free
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6 // software; you can redistribute it and/or modify it under the
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7 // terms of the GNU General Public License as published by the
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8 // Free Software Foundation; either version 3, or (at your option)
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9 // any later version.
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10
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11 // This library is distributed in the hope that it will be useful,
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12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 // GNU General Public License for more details.
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15
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16 // Under Section 7 of GPL version 3, you are granted additional
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17 // permissions described in the GCC Runtime Library Exception, version
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18 // 3.1, as published by the Free Software Foundation.
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19
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20 // You should have received a copy of the GNU General Public License and
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21 // a copy of the GCC Runtime Library Exception along with this program;
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22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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23 // <http://www.gnu.org/licenses/>.
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24
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25 /** @file bits/atomic_lockfree_defines.h
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26 * This is an internal header file, included by other library headers.
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27 * Do not attempt to use it directly. @headername{atomic}
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28 */
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29
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30 #ifndef _GLIBCXX_ATOMIC_LOCK_FREE_H
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31 #define _GLIBCXX_ATOMIC_LOCK_FREE_H 1
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32
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33 #pragma GCC system_header
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34
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35 /**
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36 * @addtogroup atomics
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37 * @{
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38 */
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39
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40 /**
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41 * Lock-free property.
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42 *
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43 * 0 indicates that the types are never lock-free.
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44 * 1 indicates that the types are sometimes lock-free.
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45 * 2 indicates that the types are always lock-free.
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46 */
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47
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48 #if __cplusplus >= 201103L
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49 #define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE
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50 #define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE
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51 #define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE
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52 #define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE
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53 #define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE
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54 #define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE
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55 #define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE
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56 #define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE
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57 #define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE
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58 #define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE
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59 #endif
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60
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61 // @} group atomics
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62
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63 #endif
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