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project_6/cccl_upstream/libcudacxx/include/cuda/std/version
EngineX CI 56fd68e7dd [INFRA] Import NVIDIA/CCCL upstream as optimization reference library 
CCCL (CUDA C++ Core Libraries) provides:
- CUB: device/block/warp-level GPU primitives (reduce, scan, sort, topk)
- Thrust: high-level parallel algorithms (transform_reduce, sort, scan)
- libcudacxx: CUDA C++ standard library (atomics, barriers, memory)
- cudax: experimental features (memory resources, allocators)
- Tuning policies: per-SM hardware-specific algorithm parameters

Competition optimization vectors mapped to CCCL:
- Output TPS (83% weight): warp_reduce, block_reduce, device_topk
- Input TPS (14% weight): device_scan, block_load, prefetch
- Cache TPS (3% weight): prefix caching strategy patterns
- Memory (0.9 util): pooled/cached/buddy allocators

Source: https://github.com/NVIDIA/cccl (shallow clone, HEAD only)
License: Apache-2.0
2026-07-30 09:35:51 +00:00

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//===----------------------------------------------------------------------===//
//
// Part of libcu++, the C++ Standard Library for your entire system,
// 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
// SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//
#ifndef _CUDA_STD_VERSION
#define _CUDA_STD_VERSION
#include <cuda/std/detail/__config> // IWYU pragma: export
#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
# pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
# pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
# pragma system_header
#endif // no system header
// We need to define our own macros to not conflict with the host stl.
// At the same time we want bring in all feature test macros from host
#if __has_include(<version>) // <version> should be the smallest include possible
# include <version>
#elif _CCCL_HOSTED()
# include <ciso646> // otherwise go for the smallest possible header
#endif // _CCCL_HOSTED()
#define __cccl_lib_bitops 201907L
#define __cccl_lib_bool_constant 201505L
#define __cccl_lib_bounded_array_traits 201902L
#define __cccl_lib_byte 201603L
#define __cccl_lib_byteswap 202110L
#define __cccl_lib_clamp 201603L
#define __cccl_lib_endian 201907L
#define __cccl_lib_forward_like 202207L
#define __cccl_lib_gcd_lcm 201606L
#define __cccl_lib_integer_comparison_functions 202002L
#define __cccl_lib_integer_sequence 202511L
#define __cccl_lib_integral_constant_callable 201304L
#define __cccl_lib_is_final 201402L
#define __cccl_lib_is_nothrow_convertible 201806L
#define __cccl_lib_is_null_pointer 201309L
#define __cccl_lib_is_scoped_enum 202011L
#define __cccl_lib_is_swappable 201603L
#if defined(_CCCL_BUILTIN_IS_VIRTUAL_BASE_OF)
# define __cccl_lib_is_virtual_base_of 202406L
#endif // _CCCL_BUILTIN_IS_VIRTUAL_BASE_OF
#define __cccl_lib_launder 201606L
#define __cccl_lib_logical_traits 201510L
#define __cccl_lib_math_constants 201907L
#if defined(_CCCL_BUILTIN_REFERENCE_CONSTRUCTS_FROM_TEMPORARY) \
&& defined(_CCCL_BUILTIN_REFERENCE_CONVERTS_FROM_TEMPORARY)
# define __cccl_lib_reference_from_temporary 202202L
#endif // _CCCL_BUILTIN_REFERENCE_CONSTRUCTS_FROM_TEMPORARY && _CCCL_BUILTIN_REFERENCE_CONVERTS_FROM_TEMPORARY
#define __cccl_lib_shift 201806L
#define __cccl_lib_to_address 201711L
#define __cccl_lib_to_array 201907L
#define __cccl_lib_to_underlying 202102L
#define __cccl_lib_transparent_operators 201210L
#define __cccl_lib_transformation_trait_aliases 201304L
#define __cccl_lib_tuple_element_t 201402L
// #define __cccl_lib_tuple_like 202311L // P2819R2 is implemented, but P2165R4 is not yet
#define __cccl_lib_type_identity 201806L
#define __cccl_lib_type_trait_variable_templates 201510L
#define __cccl_lib_unreachable 202202L
#define __cccl_lib_void_t 201411L
#define __cccl_lib_as_const 201510L
#define __cccl_lib_bit_cast 201806L
#define __cccl_lib_chrono_udls 201304L
#define __cccl_lib_complex_udls 201309L
#ifdef _CCCL_BUILTIN_IS_CONSTANT_EVALUATED
# define __cccl_lib_constexpr_complex 201711L
#endif // _CCCL_BUILTIN_IS_CONSTANT_EVALUATED
#define __cccl_lib_concepts 202002L
#define __cccl_lib_exchange_function 201304L
#define __cccl_lib_expected 202606L
// # define __cccl_lib_generic_associative_lookup 201304L
#define __cccl_lib_invoke 201411L
#define __cccl_lib_invoke_r 202106L
#define __cccl_lib_is_invocable 201703L
#define __cccl_lib_make_reverse_iterator 201402L
// # define __cccl_lib_make_unique 201304L
#define __cccl_lib_mdspan 202207L
#define __cccl_lib_null_iterators 201304L
#define __cccl_lib_optional 202506L
// # define __cccl_lib_quoted_string_io 201304L
#define __cccl_lib_result_of_sfinae 201210L
#define __cccl_lib_robust_nonmodifying_seq_ops 201304L
// # define __cccl_lib_shared_timed_mutex 201402L
#define __cccl_lib_source_location 201907L
#define __cccl_lib_span 202311L
// # define __cccl_lib_string_udls 201304L
#define __cccl_lib_submdspan 202207L
#define __cccl_lib_tuples_by_type 201304L
#ifdef _CCCL_BUILTIN_ADDRESSOF
# define __cccl_lib_addressof_constexpr 201603L
#endif // _CCCL_BUILTIN_ADDRESSOF
// # define __cccl_lib_allocator_traits_is_always_equal 201411L
// # define __cccl_lib_any 201606L
#define __cccl_lib_apply 201603L
#define __cccl_lib_array_constexpr 201603L
#define __cccl_lib_atomic_is_always_lock_free 201603L
#define __cccl_lib_bind_front 201907L
// # define __cccl_lib_boyer_moore_searcher 201603L
#define __cccl_lib_chrono 201611L
// # define __cccl_lib_enable_shared_from_this 201603L
// # define __cccl_lib_execution 201603L
// # define __cccl_lib_filesystem 201703L
// # define __cccl_lib_hardware_interference_size 201703L
#define __cccl_lib_has_unique_object_representations 201606L
#define __cccl_lib_hypot 201603L
// # define __cccl_lib_incomplete_container_elements 201505L
#ifndef _LIBCUDACXX_HAS_NO_IS_AGGREGATE
# define __cccl_lib_is_aggregate 201703L
#endif // _LIBCUDACXX_HAS_NO_IS_AGGREGATE
#if defined(_CCCL_BUILTIN_IS_LAYOUT_COMPATIBLE) && defined(_CCCL_BUILTIN_IS_CORRESPONDING_MEMBER)
# define __cccl_lib_is_layout_compatible 201907L
#endif // _CCCL_BUILTIN_IS_LAYOUT_COMPATIBLE && _CCCL_BUILTIN_IS_CORRESPONDING_MEMBER
#if defined(_CCCL_BUILTIN_IS_POINTER_INTERCONVERTIBLE_BASE_OF) \
&& defined(_CCCL_BUILTIN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS)
# define __cccl_lib_is_pointer_interconvertible 201907L
#endif // _BUILTIN_IS_POINTER_INTERCONVERTIBLE_BASE_OF && _CCCL_BUILTIN_IS_POINTER_INTERCONVERTIBLE_WITH_CLASS
#define __cccl_lib_make_from_tuple 201606L
// # define __cccl_lib_map_try_emplace 201411L
// # define __cccl_lib_math_special_functions 201603L
// # define __cccl_lib_memory_resource 201603L
// # define __cccl_lib_node_extract 201606L
// # define __cccl_lib_nonmember_container_access 201411L
#define __cccl_lib_not_fn 201603L
// # define __cccl_lib_parallel_algorithm 201603L
// # define __cccl_lib_raw_memory_algorithms 201606L
// # define __cccl_lib_sample 201603L
// # define __cccl_lib_scoped_lock 201703L
// # define __cccl_lib_shared_mutex 201505L
// # define __cccl_lib_shared_ptr_arrays 201611L
// # define __cccl_lib_shared_ptr_weak_type 201606L
#define __cccl_lib_string_view 201803L
// # define __cccl_lib_to_chars 201611L
// # define __cccl_lib_uncaught_exceptions 201411L
// # define __cccl_lib_unordered_map_try_emplace 201411L
#define __cccl_lib_variant 201606L
#define __cccl_lib_saturation_arithmetic 202603L
#if _CCCL_STD_VER >= 2020
# undef __cccl_lib_array_constexpr
# define __cccl_lib_array_constexpr 201811L
// # define __cccl_lib_assume_aligned 201811L
# define __cccl_lib_atomic_flag_test 201907L
# define __cccl_lib_atomic_float 201711L
# define __cccl_lib_atomic_lock_free_type_aliases 201907L
# define __cccl_lib_atomic_ref 202603L
// # define __cccl_lib_atomic_shared_ptr 201711L
# define __cccl_lib_atomic_value_initialization 201911L
# define __cccl_lib_atomic_wait 201907L
# define __cccl_lib_barrier 201907L
# define __cccl_lib_bit_cast 201806L
# if _CCCL_HAS_CHAR8_T()
# define __cccl_lib_char8_t 201811L
# endif // _CCCL_HAS_CHAR8_T()
// # define __cccl_lib_constexpr_algorithms 201806L
// # define __cccl_lib_constexpr_dynamic_alloc 201907L
# define __cccl_lib_constexpr_functional 201907L
// # define __cccl_lib_constexpr_iterator 201811L
// # define __cccl_lib_constexpr_memory 201811L
// # define __cccl_lib_constexpr_misc 201811L
// # define __cccl_lib_constexpr_numeric 201911L
// # define __cccl_lib_constexpr_string 201907L
// # define __cccl_lib_constexpr_swap_algorithms 201806L
// # define __cccl_lib_constexpr_tuple 201811L
// # define __cccl_lib_constexpr_utility 201811L
// # define __cccl_lib_constexpr_vector 201907L
// # define __cccl_lib_coroutine 201902L
# if __cpp_impl_destroying_delete >= 201806L && __cpp_lib_destroying_delete >= 201806L
# define __cccl_lib_destroying_delete 201806L
# endif // __cpp_impl_destroying_delete >= 201806L && __cpp_lib_destroying_delete >= 201806L
// # define __cccl_lib_erase_if 201811L
// # undef __cccl_lib_execution
// # define __cccl_lib_execution 201902L
// # define __cccl_lib_format 202106L
// # define __cccl_lib_generic_unordered_lookup 201811L
// # define __cccl_lib_int_pow2 202002L
// # define __cccl_lib_interpolate 201902L
# ifdef _CCCL_BUILTIN_IS_CONSTANT_EVALUATED
# define __cccl_lib_is_constant_evaluated 201811L
# endif // _CCCL_BUILTIN_IS_CONSTANT_EVALUATED
// # define __cccl_lib_jthread 201911L
// # define __cccl_lib_latch 201907L
// # define __cccl_lib_list_remove_return_type 201806L
// # define __cccl_lib_polymorphic_allocator 201902L
// # define __cccl_lib_ranges 201811L
// # define __cccl_lib_remove_cvref 201711L
// # define __cccl_lib_semaphore 201907L
// # undef __cccl_lib_shared_ptr_arrays
// # define __cccl_lib_shared_ptr_arrays 201707L
// # define __cccl_lib_smart_ptr_for_overwrite 202002L
// # define __cccl_lib_source_location 201907L
// # define __cccl_lib_ssize 201902L
// # define __cccl_lib_starts_ends_with 201711L
// # define __cccl_lib_syncbuf 201803L
// # define __cccl_lib_three_way_comparison 201907L
# define __cccl_lib_unwrap_ref 201811L
// todo(dabayer): Uncomment this once constant_wrapper is exposed.
// # define __cccl_lib_constant_wrapper 202603L
#endif // _CCCL_STD_VER >= 2020
#if _CCCL_STD_VER >= 2023
// # define __cccl_lib_adaptor_iterator_pair_constructor 202106L
// # define __cccl_lib_allocate_at_least 202106L
// # define __cccl_lib_associative_heterogeneous_erasure 202110L
// # define __cccl_lib_bind_back 202202L
// # define __cccl_lib_constexpr_bitset 202207L
// # define __cccl_lib_constexpr_charconv 202207L
// # define __cccl_lib_constexpr_cmath 202202L
// # undef __cccl_lib_constexpr_memory
// # define __cccl_lib_constexpr_memory 202202L
// # define __cccl_lib_constexpr_typeinfo 202106L
// # define __cccl_lib_move_only_function 202110L
// # define __cccl_lib_out_ptr 202106L
// # define __cccl_lib_ranges_chunk 202202L
// # define __cccl_lib_ranges_chunk_by 202202L
// # define __cccl_lib_ranges_iota 202202L
// # define __cccl_lib_ranges_join_with 202202L
// # define __cccl_lib_ranges_slide 202202L
// # define __cccl_lib_ranges_starts_ends_with 202106L
// # define __cccl_lib_ranges_to_container 202202L
// # define __cccl_lib_ranges_zip 202110L
// # define __cccl_lib_reference_from_temporary 202202L
// # define __cccl_lib_spanstream 202106L
// # define __cccl_lib_stacktrace 202011L
// # define __cccl_lib_stdatomic_h 202011L
// # define __cccl_lib_string_contains 202011L
// # define __cccl_lib_string_resize_and_overwrite 202110L
#endif // _CCCL_STD_VER >= 2023
#endif // _CUDA_STD_VERSION
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