/* Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

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

namespace pten {

// Disable the copy and assignment operator for a class.
#ifndef DISABLE_COPY_AND_ASSIGN
#define DISABLE_COPY_AND_ASSIGN(classname)         \
 private:                                          \
  classname(const classname&) = delete;            \
  classname(classname&&) = delete;                 \
  classname& operator=(const classname&) = delete; \
  classname& operator=(classname&&) = delete
#endif

#define PT_STATIC_ASSERT_GLOBAL_NAMESPACE(uniq_name, msg) \
  _PT_STATIC_ASSERT_GLOBAL_NAMESPACE(uniq_name, msg)

#define _PT_STATIC_ASSERT_GLOBAL_NAMESPACE(uniq_name, msg)                    \
  struct __test_global_namespace_##uniq_name##__ {};                          \
  static_assert(std::is_same<::__test_global_namespace_##uniq_name##__,       \
                             __test_global_namespace_##uniq_name##__>::value, \
                msg)

#ifdef __COUNTER__
#define PT_ID __COUNTER__
#else
#define PT_ID __LINE__
#endif

#if defined(_WIN32)
#define UNUSED
#define __builtin_expect(EXP, C) (EXP)
#else
#define UNUSED __attribute__((unused))
#endif

#define PT_CONCATENATE(arg1, arg2) PT_CONCATENATE1(arg1, arg2)
#define PT_CONCATENATE1(arg1, arg2) PT_CONCATENATE2(arg1, arg2)
#define PT_CONCATENATE2(arg1, arg2) arg1##arg2
#define PT_EXPAND(x) x

}  // namespace pten