1 // Copyright (C) 2016-2021 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
18 // { dg-options "-std=gnu++17" }
19 // { dg-do compile { target c++17 } }
26 constexpr bool check(int macro
)
28 return std::atomic
<T
>::is_always_lock_free
== (macro
== 2);
31 static_assert( check
<bool>(ATOMIC_BOOL_LOCK_FREE
) );
32 static_assert( check
<char>(ATOMIC_CHAR_LOCK_FREE
) );
33 static_assert( check
<signed char>(ATOMIC_CHAR_LOCK_FREE
) );
34 static_assert( check
<unsigned char>(ATOMIC_CHAR_LOCK_FREE
) );
35 static_assert( check
<int>(ATOMIC_INT_LOCK_FREE
) );
36 static_assert( check
<unsigned int>(ATOMIC_INT_LOCK_FREE
) );
37 static_assert( check
<long>(ATOMIC_LONG_LOCK_FREE
) );
38 static_assert( check
<unsigned long>(ATOMIC_LONG_LOCK_FREE
) );
39 static_assert( check
<long long>(ATOMIC_LLONG_LOCK_FREE
) );
40 static_assert( check
<unsigned long long>(ATOMIC_LLONG_LOCK_FREE
) );
41 static_assert( check
<wchar_t>(ATOMIC_WCHAR_T_LOCK_FREE
) );
42 #ifdef _GLIBCXX_USE_CHAR8_T
43 static_assert( check
<char8_t
>(ATOMIC_CHAR8_T_LOCK_FREE
) );
45 static_assert( check
<char16_t
>(ATOMIC_CHAR16_T_LOCK_FREE
) );
46 static_assert( check
<char32_t
>(ATOMIC_CHAR32_T_LOCK_FREE
) );