mirror of
https://github.com/ziglang/zig.git
synced 2025-12-06 22:33:08 +00:00
1c8f0b8909
* Moved the tz.cpp patch to experimental/tzdb.cpp. * Extended the __config_site patch to a few more files.
38 lines
994 B
C++
Vendored
38 lines
994 B
C++
Vendored
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___BIT_HAS_SINGLE_BIT_H
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#define _LIBCPP___BIT_HAS_SINGLE_BIT_H
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#include <__concepts/arithmetic.h>
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#include <__config>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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#if _LIBCPP_STD_VER >= 20
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <__libcpp_unsigned_integer _Tp>
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[[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool has_single_bit(_Tp __t) noexcept {
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return __t != 0 && (((__t & (__t - 1)) == 0));
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP_STD_VER >= 20
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___BIT_HAS_SINGLE_BIT_H
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