Backport std::unique_ptr

A handy helper function. I copied the code from Effective Modern C++.
The code is too short to be considered "legally significant", so
copyright should not be an issue.

Also, GCC copyright notice is not needed on such small files as well.

1 files changed, 17 insertions, 0 deletions

diff --git a/gcc/rust/util/rust-make_unique.h b/gcc/rust/util/rust-make_unique.h
new file mode 100644
index 0000000..0c4da2f
--- /dev/null
+++ b/gcc/rust/util/rust-make_unique.h
@@ -0,0 +1,17 @@
+#ifndef RUST_MAKE_UNIQUE_H
+#define RUST_MAKE_UNIQUE_H
+
+#include <memory>
+
+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