gdbsupport/def-vector.h

   1 /* Copyright (C) 2017-2023 Free Software Foundation, Inc.
   2
   3    This file is part of GDB.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #ifndef COMMON_DEF_VECTOR_H
  19 #define COMMON_DEF_VECTOR_H
  20
  21 #include <vector>
  22 #include "gdbsupport/default-init-alloc.h"
  23
  24 namespace gdb {
  25
  26 /* A vector that uses an allocator that default constructs using
  27    default-initialization rather than value-initialization.  The idea
  28    is to use this when you don't want zero-initialization of elements
  29    of vectors of trivial types.  E.g., byte buffers.  */
  30
  31 template<typename T> using def_vector
  32   = std::vector<T, gdb::default_init_allocator<T>>;
  33
  34 } /* namespace gdb */
  35
  36 #endif /* COMMON_DEF_VECTOR_H */