liuxiaolong
2021-07-20 58d904a328c0d849769b483e901a0be9426b8209
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
#ifndef BOOST_SMART_PTR_DETAIL_SP_HAS_GCC_INTRINSICS_HPP_INCLUDED
#define BOOST_SMART_PTR_DETAIL_SP_HAS_GCC_INTRINSICS_HPP_INCLUDED
 
// MS compatible compilers support #pragma once
 
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
 
 
// boost/smart_ptr/detail/sp_has_gcc_intrinsics.hpp
//
// Copyright 2020 Peter Dimov
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
//
// Defines the BOOST_SP_HAS_GCC_INTRINSICS macro if the __atomic_*
// intrinsics are available.
 
 
#if defined( __ATOMIC_RELAXED ) && defined( __ATOMIC_ACQUIRE ) && defined( __ATOMIC_RELEASE ) && defined( __ATOMIC_ACQ_REL )
 
# define BOOST_SP_HAS_GCC_INTRINSICS
 
#endif
 
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_HAS_GCC_INTRINSICS_HPP_INCLUDED