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       1                 :             : /* Minimal implementation of make_unique for C++11 compatibility.
       2                 :             :    Copyright (C) 2022-2024 Free Software Foundation, Inc.
       3                 :             : 
       4                 :             : This file is part of GCC.
       5                 :             : 
       6                 :             : GCC is free software; you can redistribute it and/or modify it under
       7                 :             : the terms of the GNU General Public License as published by the Free
       8                 :             : Software Foundation; either version 3, or (at your option) any later
       9                 :             : version.
      10                 :             : 
      11                 :             : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      12                 :             : WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13                 :             : FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14                 :             : for more details.
      15                 :             : 
      16                 :             : You should have received a copy of the GNU General Public License
      17                 :             : along with GCC; see the file COPYING3.  If not see
      18                 :             : <http://www.gnu.org/licenses/>.  */
      19                 :             : 
      20                 :             : #ifndef GCC_MAKE_UNIQUE
      21                 :             : #define GCC_MAKE_UNIQUE
      22                 :             : 
      23                 :             : /* This header uses std::unique_ptr, but <memory> can't be directly
      24                 :             :    included due to issues with macros.  Hence <memory> must be included
      25                 :             :    from system.h by defining INCLUDE_MEMORY in any source file using
      26                 :             :    make-unique.h.  */
      27                 :             : 
      28                 :             : #ifndef INCLUDE_MEMORY
      29                 :             : # error "You must define INCLUDE_MEMORY before including system.h to use make-unique.h"
      30                 :             : #endif
      31                 :             : 
      32                 :             : #include <type_traits>
      33                 :             : 
      34                 :             : /* Minimal implementation of make_unique for C++11 compatibility
      35                 :             :    (std::make_unique is C++14).  */
      36                 :             : 
      37                 :             : template<typename T, typename... Args>
      38                 :             : inline typename std::enable_if<!std::is_array<T>::value, std::unique_ptr<T>>::type
      39                 :     1065789 : make_unique(Args&&... args)
      40                 :             : {
      41                 :     1065789 :   return std::unique_ptr<T> (new T (std::forward<Args> (args)...));
      42                 :             : }
      43                 :             : 
      44                 :             : #endif /* ! GCC_MAKE_UNIQUE */