/*
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * Licensed under the Apache License Version 2.0 with LLVM Exceptions
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *   https://llvm.org/LICENSE.txt
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#pragma once

#include <unifex/config.hpp>

namespace unifex {
  namespace detail {
    struct _ignore {
      template <typename T>
      /*implicit*/ _ignore(T&&) noexcept {}
    };

    template <int=0>
    struct _empty {};
  } // namespace detail

  using detail::_ignore;

  namespace _execute::_cpo {
    struct _fn;
  } // namespace _execute::_cpo
  extern const _execute::_cpo::_fn execute;

  namespace _submit_cpo {
    extern const struct _fn submit;
  } // namespace _submit_cpo
  using _submit_cpo::submit;

  namespace _connect::_cpo {
    struct _fn;
  } // namespace _connect::_cpo
  extern const _connect::_cpo::_fn connect;

#if !UNIFEX_NO_COROUTINES
  namespace _await_tfx {
    extern const struct _fn await_transform;
  }
  using _await_tfx::await_transform;
#endif

} // namespace unifex