arthur.cohen@embecosm.com writes:

> This is a wrapper for make_unique. We can likely get rid of this, as there
> are other implementations available, or simply keep using the unique_ptr
> constructor.
> ---
>  gcc/rust/util/rust-make-unique.h | 35 ++++++++++++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
>  create mode 100644 gcc/rust/util/rust-make-unique.h
>
> diff --git a/gcc/rust/util/rust-make-unique.h b/gcc/rust/util/rust-make-unique.h
> new file mode 100644
> index 00000000000..7b79e625ff1
> --- /dev/null
> +++ b/gcc/rust/util/rust-make-unique.h
> @@ -0,0 +1,35 @@
> +// Copyright (C) 2020-2022 Free Software Foundation, Inc.
> +
> +// This file is part of GCC.
> +
> +// GCC is free software; you can redistribute it and/or modify it under
> +// the terms of the GNU General Public License as published by the Free
> +// Software Foundation; either version 3, or (at your option) any later
> +// version.
> +
> +// GCC is distributed in the hope that it will be useful, but WITHOUT ANY
> +// WARRANTY; without even the implied warranty of MERCHANTABILITY or
> +// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
> +// for more details.
> +
> +// You should have received a copy of the GNU General Public License
> +// along with GCC; see the file COPYING3.  If not see
> +// <http://www.gnu.org/licenses/>.
> +
> +#ifndef RUST_MAKE_UNIQUE_H
> +#define RUST_MAKE_UNIQUE_H
> +
> +#include "rust-system.h"
> +
> +namespace Rust {
> +
> +template <typename T, typename... Ts>
> +std::unique_ptr<T>
> +make_unique (Ts &&...params)
> +{
> +  return std::unique_ptr<T> (new T (std::forward<Ts> (params)...));
> +}
> +
> +} // namespace Rust
> +
> +#endif // RUST_MAKE_UNIQUE_H

I think this was added recently, see commit
00d7c8ff16e6838273cea808ffbe22e98104f9d5 and gcc/make-unique.h.

-- 
Arsen Arsenović