executor.cpp
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//
// executor.cpp
// ~~~~~~~~~~~~
//
// Copyright (c) 2003-2020 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// 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)
//
// Disable autolinking for unit tests.
#if !defined(BOOST_ALL_NO_LIB)
#define BOOST_ALL_NO_LIB 1
#endif // !defined(BOOST_ALL_NO_LIB)
// Test that header file is self-contained.
#include "asio/execution/executor.hpp"
#include "../unit_test.hpp"
struct not_an_executor
{
};
struct executor
{
executor()
{
}
executor(const executor&) ASIO_NOEXCEPT
{
}
#if defined(ASIO_HAS_MOVE)
executor(executor&&) ASIO_NOEXCEPT
{
}
#endif // defined(ASIO_HAS_MOVE)
template <typename F>
void execute(ASIO_MOVE_ARG(F) f) const ASIO_NOEXCEPT
{
(void)f;
}
bool operator==(const executor&) const ASIO_NOEXCEPT
{
return true;
}
bool operator!=(const executor&) const ASIO_NOEXCEPT
{
return false;
}
};
namespace asio {
namespace traits {
#if !defined(ASIO_HAS_DEDUCED_EXECUTE_MEMBER_TRAIT)
template <typename F>
struct execute_member<executor, F>
{
ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);
typedef void result_type;
};
#endif // !defined(ASIO_HAS_DEDUCED_SET_ERROR_MEMBER_TRAIT)
#if !defined(ASIO_HAS_DEDUCED_EQUALITY_COMPARABLE_TRAIT)
template <>
struct equality_comparable<executor>
{
ASIO_STATIC_CONSTEXPR(bool, is_valid = true);
ASIO_STATIC_CONSTEXPR(bool, is_noexcept = true);
};
#endif // !defined(ASIO_HAS_DEDUCED_EQUALITY_COMPARABLE_TRAIT)
} // namespace traits
} // namespace asio
void is_executor_test()
{
ASIO_CHECK((
!asio::execution::is_executor<
void
>::value));
ASIO_CHECK((
!asio::execution::is_executor<
not_an_executor
>::value));
ASIO_CHECK((
asio::execution::is_executor<
executor
>::value));
}
void is_executor_of_test()
{
ASIO_CHECK((
!asio::execution::is_executor_of<
void,
void(*)()
>::value));
ASIO_CHECK((
!asio::execution::is_executor_of<
not_an_executor,
void(*)()
>::value));
ASIO_CHECK((
asio::execution::is_executor_of<
executor,
void(*)()
>::value));
}
struct executor_with_other_shape_type
{
typedef double shape_type;
};
void executor_shape_test()
{
ASIO_CHECK((
asio::is_same<
asio::execution::executor_shape<executor>::type,
std::size_t
>::value));
ASIO_CHECK((
asio::is_same<
asio::execution::executor_shape<
executor_with_other_shape_type
>::type,
double
>::value));
}
struct executor_with_other_index_type
{
typedef unsigned char index_type;
};
void executor_index_test()
{
ASIO_CHECK((
asio::is_same<
asio::execution::executor_index<executor>::type,
std::size_t
>::value));
ASIO_CHECK((
asio::is_same<
asio::execution::executor_index<
executor_with_other_shape_type
>::type,
double
>::value));
ASIO_CHECK((
asio::is_same<
asio::execution::executor_index<
executor_with_other_index_type
>::type,
unsigned char
>::value));
}
ASIO_TEST_SUITE
(
"executor",
ASIO_TEST_CASE(is_executor_test)
ASIO_TEST_CASE(is_executor_of_test)
ASIO_TEST_CASE(executor_shape_test)
ASIO_TEST_CASE(executor_index_test)
)