|  | // -*- C++ -*- | 
|  | //===----------------------------------------------------------------------===// | 
|  | // | 
|  | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | 
|  | // See https://llvm.org/LICENSE.txt for license information. | 
|  | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | export namespace std { | 
|  | // [bit.cast], bit_cast | 
|  | using std::bit_cast; | 
|  |  | 
|  | #if _LIBCPP_STD_VER >= 23 | 
|  | // [bit.byteswap], byteswap | 
|  | using std::byteswap; | 
|  | #endif | 
|  |  | 
|  | // [bit.pow.two], integral powers of 2 | 
|  | using std::bit_ceil; | 
|  | using std::bit_floor; | 
|  | using std::bit_width; | 
|  | using std::has_single_bit; | 
|  |  | 
|  | // [bit.rotate], rotating | 
|  | using std::rotl; | 
|  | using std::rotr; | 
|  |  | 
|  | // [bit.count], counting | 
|  | using std::countl_one; | 
|  | using std::countl_zero; | 
|  | using std::countr_one; | 
|  | using std::countr_zero; | 
|  | using std::popcount; | 
|  |  | 
|  | // [bit.endian], endian | 
|  | using std::endian; | 
|  | } // namespace std |