From fa5e9d5714433f38d2b3d8e6f1422a223d781125 Mon Sep 17 00:00:00 2001
From: Philippe Proulx <eeppeliteloop@gmail.com>
Date: Wed, 2 Mar 2022 13:47:25 -0500
Subject: [PATCH] src/cpp-common: add bt2_common::makeUnique()

This is our equivalent of std::make_unique() (introduced in C++14) for
C++11.

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Change-Id: Ic58341f7419ac447f83401358ca0884151246dc8
Reviewed-on: https://review.lttng.org/c/babeltrace/+/7465
Reviewed-by: Francis Deslauriers <francis.deslauriers@efficios.com>
Reviewed-on: https://review.lttng.org/c/babeltrace/+/10815
Tested-by: jenkins <jenkins@lttng.org>
---
 src/cpp-common/Makefile.am     |  3 ++-
 src/cpp-common/make-unique.hpp | 29 +++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)
 create mode 100644 src/cpp-common/make-unique.hpp

diff --git a/src/cpp-common/Makefile.am b/src/cpp-common/Makefile.am
index 016bc0e9..09b19a23 100644
--- a/src/cpp-common/Makefile.am
+++ b/src/cpp-common/Makefile.am
@@ -12,4 +12,5 @@ EXTRA_DIST = bt2 \
 	optional.hpp \
 	string_view.hpp \
 	uuid-view.hpp \
-	endian.hpp
+	endian.hpp \
+	make-unique.hpp
diff --git a/src/cpp-common/make-unique.hpp b/src/cpp-common/make-unique.hpp
new file mode 100644
index 00000000..66dd7f7a
--- /dev/null
+++ b/src/cpp-common/make-unique.hpp
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2022 Philippe Proulx <pproulx@efficios.com>
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef BABELTRACE_CPP_COMMON_MAKE_UNIQUE_HPP
+#define BABELTRACE_CPP_COMMON_MAKE_UNIQUE_HPP
+
+#include <memory>
+#include <utility>
+#include <type_traits>
+
+namespace bt2_common {
+
+/*
+ * Our implementation of std::make_unique<>() for C++11.
+ */
+template <typename T, typename... ArgTs>
+std::unique_ptr<T> makeUnique(ArgTs&&...args)
+{
+    static_assert(!std::is_array<T>::value, "`T` is not an array (unsupported).");
+
+    return std::unique_ptr<T>(new T {std::forward<ArgTs>(args)...});
+}
+
+} /* namespace bt2_common */
+
+#endif /* BABELTRACE_CPP_COMMON_MAKE_UNIQUE_HPP */
-- 
2.34.1