Files
project_6/cccl_upstream/cmake/header_test.cu.in
muh-bot dedf08166a [CCCL] Add missing CCCL components: c2h, nvbench_helper, cmake, cudax, AGENTS.md
Added 863 files from NVIDIA/cccl sparse checkout:
- c2h/ (27 files): Catch2 test helpers — generators, validators, runner
- nvbench_helper/ (10 files): Benchmark harness utilities
- cmake/ (29 files): CMake presets and build helpers
- cudax/ (794 files): Experimental CUDA extensions
- AGENTS.md: NVIDIA's official AI agent instructions for CCCL
- CMakePresets.json: Standardized build configurations
- cccl-version.json: Version tracking

Also added CCCL_ASSET_MAP.md mapping all 4295 CCCL files to
competition value and PRD items.

cccl_upstream now covers 100% of competition-critical assets:
- 27 tuning headers (SM80/90/100 benchmark data)
- 32 dispatch headers (algorithm implementations)
- 60 Thrust examples (correctness verification)
- 217 CUB Catch2 tests (regression matrix)
- 153 CUB benchmarks (parameter space search)
- 18 CUB examples (API verification)
- 27 test helpers + benchmark harness
- 794 cudax experimental extensions
2026-08-06 02:14:18 +00:00

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// This source file checks that:
// 1) Header <@header@> compiles without error.
// 2) Common macro collisions with platform/system headers are avoided.
// 3) half/bf16 aren't included when these are explicitly disabled.
// Define CCCL_HEADER_MACRO_CHECK(macro, header), which emits a diagnostic indicating
// a potential macro collision and halts.
//
// Hacky way to build a string, but it works on all tested platforms.
#define CCCL_HEADER_MACRO_CHECK(MACRO, HEADER) \
CCCL_HEADER_MACRO_CHECK_IMPL( \
Identifier MACRO should not be used from Thrust headers due to conflicts with HEADER macros.)
// Use raw platform macros instead of the CCCL macros since we
// don't want to #include any headers other than the one being tested.
//
// This is only implemented for MSVC/GCC/Clang.
#if defined(_MSC_VER) // MSVC
// Fake up an error for MSVC
# define CCCL_HEADER_MACRO_CHECK_IMPL(msg) \
/* Print message that looks like an error: */ \
__pragma(message(__FILE__ ":" CCCL_HEADER_MACRO_CHECK_IMPL0(__LINE__) ": error: " #msg)) \
\
static_assert(false, #msg); /* abort compilation due to static_assert or syntax error */
# define CCCL_HEADER_MACRO_CHECK_IMPL0(x) CCCL_HEADER_MACRO_CHECK_IMPL1(x)
# define CCCL_HEADER_MACRO_CHECK_IMPL1(x) #x
#elif defined(__clang__) || defined(__GNUC__)
// GCC/clang are easy:
# define CCCL_HEADER_MACRO_CHECK_IMPL(msg) CCCL_HEADER_MACRO_CHECK_IMPL0(GCC error #msg)
# define CCCL_HEADER_MACRO_CHECK_IMPL0(expr) _Pragma(#expr)
#endif // msvc vs. the world
// May be defined to skip macro check for certain configurations.
#ifndef CCCL_IGNORE_HEADER_MACRO_CHECKS
// complex.h conflicts
# define I CCCL_HEADER_MACRO_CHECK('I', complex.h)
// windows.h conflicts
# define small CCCL_HEADER_MACRO_CHECK('small', windows.h)
// We can't enable these checks without breaking some builds -- some standard
// library implementations unconditionally `#undef` these macros, which then
// causes random failures later.
// Leaving these commented out as a warning: Here be dragons.
// #define min(...) CCCL_HEADER_MACRO_CHECK('min', windows.h)
// #define max(...) CCCL_HEADER_MACRO_CHECK('max', windows.h)
# ifdef _WIN32
// On Windows, make sure any include of Windows.h (e.g. via NVTX) does not define the checked macros
# define WIN32_LEAN_AND_MEAN
# endif // _WIN32
// termios.h conflicts (NVIDIA/thrust#1547)
# define B0 CCCL_HEADER_MACRO_CHECK("B0", termios.h)
#endif // CCCL_IGNORE_HEADER_MACRO_CHECKS
#include <@header@>
#if defined(CCCL_DISABLE_NVFP8_SUPPORT)
# if defined(__CUDA_FP8_TYPES_EXIST__)
# error We should not include cuda_fp8.h when FP8 support is disabled
# endif // __CUDA_FP16_TYPES_EXIST__
#endif // CCCL_DISABLE_BF16_SUPPORT
#if defined(CCCL_DISABLE_BF16_SUPPORT)
# if defined(__CUDA_BF16_TYPES_EXIST__)
# error We should not include cuda_bf16.h when BF16 support is disabled
# endif // __CUDA_BF16_TYPES_EXIST__
# if defined(__CUDA_FP8_TYPES_EXIST__)
# error We should not include cuda_fp8.h when BF16 support is disabled
# endif // __CUDA_FP16_TYPES_EXIST__
#endif // CCCL_DISABLE_BF16_SUPPORT
#if defined(CCCL_DISABLE_FP16_SUPPORT)
# if defined(__CUDA_FP8_TYPES_EXIST__)
# error We should not include cuda_fp8.h when half support is disabled
# endif // __CUDA_FP16_TYPES_EXIST__
# if defined(__CUDA_FP16_TYPES_EXIST__)
# error We should not include cuda_fp16.h when half support is disabled
# endif // __CUDA_FP16_TYPES_EXIST__
# if defined(__CUDA_BF16_TYPES_EXIST__)
# error We should not include cuda_bf16.h when half support is disabled
# endif // __CUDA_BF16_TYPES_EXIST__
#endif // CCCL_DISABLE_FP16_SUPPORT