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The vendors of the MSVC STL, libstdc++ and libc++ have agreed [1] to make the C++23 modules std and std.compat available in C++20. This provides the std module; libc++ has not implemented the std.compat module yet. [1] https://github.com/microsoft/STL/issues/3945 Depends on D158357 Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D158358
39 lines
973 B
C++
39 lines
973 B
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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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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export namespace std {
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// [bit.cast], bit_cast
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using std::bit_cast;
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#if _LIBCPP_STD_VER >= 23
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// [bit.byteswap], byteswap
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using std::byteswap;
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#endif
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// [bit.pow.two], integral powers of 2
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using std::bit_ceil;
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using std::bit_floor;
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using std::bit_width;
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using std::has_single_bit;
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// [bit.rotate], rotating
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using std::rotl;
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using std::rotr;
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// [bit.count], counting
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using std::countl_one;
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using std::countl_zero;
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using std::countr_one;
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using std::countr_zero;
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using std::popcount;
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// [bit.endian], endian
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using std::endian;
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} // namespace std
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