clang/test/SemaCUDA/cuda.h

/* Minimal declarations for CUDA support.  Testing purposes only. */

#include <stddef.h>

#define __constant__ __attribute__((constant))
#define __device__ __attribute__((device))
#define __global__ __attribute__((global))
#define __host__ __attribute__((host))
#define __shared__ __attribute__((shared))
#define __launch_bounds__(...) __attribute__((launch_bounds(__VA_ARGS__)))

struct dim3 {
  unsigned x, y, z;
  __host__ __device__ dim3(unsigned x, unsigned y = 1, unsigned z = 1) : x(x), y(y), z(z) {}
};

typedef struct cudaStream *cudaStream_t;

int cudaConfigureCall(dim3 gridSize, dim3 blockSize, size_t sharedSize = 0,
                      cudaStream_t stream = 0);