2a7ca101d7
Sparse-checkout from NVIDIA/cccl main branch to complete cccl_upstream: Added: - python/cuda_cccl/ (226 files) — Python bindings for device-level algorithms Critical for muh toolchain: cuda.compute.reduce_into, scan, radix_sort, etc. Includes 204 .py files with full test coverage for all 27 algorithms - ci/ (163 files) — Build/test infrastructure build_cub.sh, test_cub.sh, build_and_test_targets.sh, matrix.yaml Directly maps to our [INFRA-CI] and [INFRA-BUILD] items - .agent/skills/ (7 files) — NVIDIA's own agent skills for CCCL cccl-style/SKILL.md, cccl-test/SKILL.md, sass-diff/SKILL.md - docs/ (491 files) — Official CCCL documentation CI references, CMake guides, Python compute docs, libcudacxx PTX docs - test/ (12 files) — Top-level integration tests (cuda_smoke, stdpar) - Root configs: .clang-format, .clang-tidy, CONTRIBUTING.md, pyproject.toml - CLAUDE.md symlink → AGENTS.md (NVIDIA's standard) cccl_upstream now mirrors full NVIDIA/cccl structure: Before: 42M (cub + thrust + libcudacxx + cudax + c + examples + benchmarks) After: 53M (+python +ci +docs +.agent +test +configs) This completes the CCCL base needed for: - [muh-bench] items: ci/util/build_and_test_targets.sh for targeted builds - [CCCL-verify] items: python/cuda_cccl/tests/ as reference implementations - [CCCL-test] items: ci/test_cub.sh, ci/test_thrust.sh - Agent workflow: .agent/skills/ for consistent style and test patterns
50 lines
1.5 KiB
ReStructuredText
50 lines
1.5 KiB
ReStructuredText
.. _libcudacxx-standard-api-concepts:
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Concepts Library
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=======================
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.. list-table::
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:widths: 25 45 30
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:header-rows: 1
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* - Header
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- Content
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- Availability
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* - `\<cuda/std/concepts\> <https://en.cppreference.com/w/cpp/header/concepts>`_
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- Fundamental library concepts
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- CCCL 2.1.0 / CUDA 12.2
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Extensions
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----------
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- All library features are available from C++14 onwards. The concepts
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can be used like type traits prior to C++20.
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.. code:: cpp
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template<cuda::std::integral Integer>
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void do_something_with_integers_in_cpp20(Integer&& i) {...}
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template<class Integer, cuda::std::enable_if_t<cuda::std::integral<Integer>, int> = 0>
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void do_something_with_integers_in_cpp17(Integer&& i) {...}
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template<class Integer, cuda::std::enable_if_t<cuda::std::integral<Integer>, int> = 0>
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void do_something_with_integers_in_cpp14(Integer&& i) {...}
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Restrictions
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------------
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- Subsumption does not work prior to C++20
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.. code:: cpp
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template<class Integer, cuda::std::enable_if_t<subsuming_concept<Integer> && true, int> = 0>
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void would_be_preferred_overload_in_cpp20(Integer&& i) {...}
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template<class Integer, cuda::std::enable_if_t<cuda::std::integral<Integer>, int> = 0>
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void is_always_ambiguous_in_cpp17(Integer&& i) {...}
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- Subsumption is only partially implemented in the compiler until nvcc 12.4
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nvcc has issues detecting subsumption of concepts that are composed of multiple concepts
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