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      1 /*
      2  *  Copyright (C) 2006, 2010 Apple Inc. All rights reserved.
      3  *
      4  *  This library is free software; you can redistribute it and/or
      5  *  modify it under the terms of the GNU Library General Public
      6  *  License as published by the Free Software Foundation; either
      7  *  version 2 of the License, or (at your option) 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 GNU
     12  *  Library General Public License for more details.
     13  *
     14  *  You should have received a copy of the GNU Library General Public License
     15  *  along with this library; see the file COPYING.LIB.  If not, write to
     16  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  *  Boston, MA 02110-1301, USA.
     18  *
     19  */
     20 
     21 #ifndef WTF_Noncopyable_h
     22 #define WTF_Noncopyable_h
     23 
     24 #ifndef __has_feature
     25     #define __has_feature(x) 0
     26 #endif
     27 
     28 #if __has_feature(cxx_deleted_functions)
     29     #define WTF_MAKE_NONCOPYABLE(ClassName) \
     30         _Pragma("clang diagnostic push") \
     31         _Pragma("clang diagnostic ignored \"-Wunknown-pragmas\"") \
     32         _Pragma("clang diagnostic ignored \"-Wc++0x-extensions\"") \
     33         private: \
     34             ClassName(const ClassName&) = delete; \
     35             ClassName& operator=(const ClassName&) = delete; \
     36         _Pragma("clang diagnostic pop")
     37 #else
     38     #define WTF_MAKE_NONCOPYABLE(ClassName) \
     39         private: \
     40             ClassName(const ClassName&); \
     41             ClassName& operator=(const ClassName&)
     42 #endif
     43 
     44 #endif // WTF_Noncopyable_h
     45