---
id: pr-cccl-cub-8270
repo: NVIDIA/cccl
pr: 8270
title: '`cuda::is_bitwise_comparable`'
author: fbusato
date: '2026-04-30'
url: https://github.com/NVIDIA/cccl/pull/8270
source_category: upstream-code
architectures:
- sm100
tags:
- warp
techniques:
- warp-specialization
hardware_features: []
kernel_types: []
languages:
- cuda-cpp
captured_at: '2026-05-16'
status: merged
merge_sha: 2d6346a9e822aeb8224d8189fb59c0ad3c54a6d4
inclusion_reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.
changed_paths:
- docs/libcudacxx/extended_api/type_traits.rst
- docs/libcudacxx/extended_api/type_traits/is_bitwise_comparable.rst
- libcudacxx/include/cuda/__type_traits/is_bitwise_comparable.h
- libcudacxx/include/cuda/type_traits
- libcudacxx/test/libcudacxx/cuda/type_traits/is_bitwise_comparable.basic_types.pass.cpp
- libcudacxx/test/libcudacxx/cuda/type_traits/is_bitwise_comparable.composite_types.pass.cpp
artifact_dir: evidence/pull-bundles/cccl-cub/gh-8270
head_ref_oid: 12f64c331587de184bd56dd172d467a2d5f8705a
---
# `cuda::is_bitwise_comparable`

- Repository: `NVIDIA/cccl`
- PR: [8270](https://github.com/NVIDIA/cccl/pull/8270)
- Decision: `Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.`
- Reason: Search-matched CUDA kernel optimization PR; materialize diff/source before synthesis.

## Changed Paths

- `docs/libcudacxx/extended_api/type_traits.rst`
- `docs/libcudacxx/extended_api/type_traits/is_bitwise_comparable.rst`
- `libcudacxx/include/cuda/__type_traits/is_bitwise_comparable.h`
- `libcudacxx/include/cuda/type_traits`
- `libcudacxx/test/libcudacxx/cuda/type_traits/is_bitwise_comparable.basic_types.pass.cpp`
- `libcudacxx/test/libcudacxx/cuda/type_traits/is_bitwise_comparable.composite_types.pass.cpp`

## Evidence Bundle

`evidence/pull-bundles/cccl-cub/gh-8270`
