Added thirdparty: boost library

thirdparty/include/boost/cobalt/gather.hpp

@@ -0,0 +1,38 @@
+//
+// Copyright (c) 2022 Klemens Morgenstern (klemens.morgenstern@gmx.net)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef BOOST_COBALT_GATHER_HPP
+#define BOOST_COBALT_GATHER_HPP
+
+#include <boost/cobalt/concepts.hpp>
+#include <boost/cobalt/detail/gather.hpp>
+
+namespace boost::cobalt
+{
+
+
+template<awaitable ... Promise>
+auto gather(Promise && ... p)
+{
+  return detail::gather_variadic_impl<Promise ...>(
+      static_cast<Promise&&>(p)...);
+}
+
+
+template<typename PromiseRange>
+  requires awaitable<std::decay_t<decltype(*std::declval<PromiseRange>().begin())>>
+auto gather(PromiseRange && p)
+{
+  return detail::gather_ranged_impl<PromiseRange>{static_cast<PromiseRange&&>(p)};
+}
+
+
+
+}
+
+
+#endif //BOOST_COBALT_GATHER_HPP