derek.holloway
7502bf64a4
CodeQL / Analyze (actions) (push) Canceled after 0s
CodeQL / Analyze (python) (push) Canceled after 0s
pre-commit / pre-commit (push) Canceled after 0s
Multi-Arch CI / setup (push) Canceled after 0s
Publish build_manylinux_x86_64 images / publish_build_manylinux_x86_64 (push) Canceled after 0s
Setup (Multi-Arch) / setup (push) Canceled after 0s
Multi-Arch CI / Linux::${{ fromJSON(needs.setup.outputs.linux_build_config || '{}').build_variant_label || 'skip' }} (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Publish no_rocm_image_ubi10 image / publish_no_rocm_image_ubi10 (push) Canceled after 0s
Multi-Arch CI / Windows::${{ fromJSON(needs.setup.outputs.windows_build_config || '{}').build_variant_label || 'skip' }} (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Multi-Arch CI / Manifest Diff (push) Canceled after 0s
TheRock Manifest Diff Report / Generate Manifest Diff Report (push) Canceled after 0s
Multi-Arch CI / CI Summary (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04 (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04_ocl_rt images / publish_no_rocm_image_ubuntu24_04_ocl_rt (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_rocgdb (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04_rocgdb images / publish_no_rocm_image_ubuntu24_04_rocgdb (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_ocl_rt (push) Canceled after 0s
Publish TheRock Docker image / build-and-push-image (push) Canceled after 0s
Unit Tests / Unit Tests :: ubuntu-24.04 (push) Canceled after 0s
Unit Tests / Unit Tests :: windows-2022 (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_media (push) Canceled after 0s
Unit Tests / Unit Tests Summary (push) Canceled after 0s
Publish no_rocm_image_ubuntu24_04 images / publish_no_rocm_image_ubuntu24_04_openmpi (push) Canceled after 0s
67 lines
1.9 KiB
C++
67 lines
1.9 KiB
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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef _LIBCPP___RANDOM_LOG2_H
|
|
#define _LIBCPP___RANDOM_LOG2_H
|
|
|
|
#include <__config>
|
|
#include <__cstddef/size_t.h>
|
|
#include <__type_traits/conditional.h>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
# pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
template <class _UIntType, _UIntType _Xp, size_t _Rp>
|
|
struct __log2_imp;
|
|
|
|
template <unsigned long long _Xp, size_t _Rp>
|
|
struct __log2_imp<unsigned long long, _Xp, _Rp> {
|
|
static const size_t value =
|
|
_Xp & ((unsigned long long)(1) << _Rp) ? _Rp : __log2_imp<unsigned long long, _Xp, _Rp - 1>::value;
|
|
};
|
|
|
|
template <unsigned long long _Xp>
|
|
struct __log2_imp<unsigned long long, _Xp, 0> {
|
|
static const size_t value = 0;
|
|
};
|
|
|
|
template <size_t _Rp>
|
|
struct __log2_imp<unsigned long long, 0, _Rp> {
|
|
static const size_t value = _Rp + 1;
|
|
};
|
|
|
|
#if _LIBCPP_HAS_INT128
|
|
|
|
template <__uint128_t _Xp, size_t _Rp>
|
|
struct __log2_imp<__uint128_t, _Xp, _Rp> {
|
|
static const size_t value =
|
|
(_Xp >> 64) ? (64 + __log2_imp<unsigned long long, (_Xp >> 64), 63>::value)
|
|
: __log2_imp<unsigned long long, _Xp, 63>::value;
|
|
};
|
|
|
|
#endif // _LIBCPP_HAS_INT128
|
|
|
|
template <class _UIntType, _UIntType _Xp>
|
|
struct __log2 {
|
|
static const size_t value = __log2_imp<
|
|
#if _LIBCPP_HAS_INT128
|
|
__conditional_t<sizeof(_UIntType) <= sizeof(unsigned long long), unsigned long long, __uint128_t>,
|
|
#else
|
|
unsigned long long,
|
|
#endif // _LIBCPP_HAS_INT128
|
|
_Xp,
|
|
sizeof(_UIntType) * __CHAR_BIT__ - 1>::value;
|
|
};
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP___RANDOM_LOG2_H
|