BinaryInternal.h

// DON'T include this except from Binary*.cu files. It should not leak into
// headers.
#pragma once
#define TORCH_ASSERT_NO_OPERATORS
#include <ATen/AccumulateType.h>
#include <ATen/Dispatch.h>
#include <ATen/native/BinaryOps.h>
#include <ATen/native/DispatchStub.h>
#include <ATen/native/TensorIterator.h>
#include <c10/cuda/CUDAGuard.h>
#include <c10/cuda/CUDAMathCompat.h>
#include <c10/util/TypeSafeSignMath.h>
#include <ATen/native/cuda/JitLoops.cuh>
#include <ATen/native/cuda/Loops.cuh>

#include <type_traits>

namespace at::native::binary_internal {

template <typename scalar_t>
struct DivFunctor {
  __device__ scalar_t operator()(scalar_t a, scalar_t b) const {
    return a / b;
  }
};

template <typename T>
struct MulFunctor {
  __device__ T operator()(T a, T b) const {
    return a * b;
  }
};

// Workaround for the error: '*' in boolean context, suggest '&&' instead
// [-Werror=int-in-bool-context]
template <>
struct MulFunctor<bool> {
  __device__ bool operator()(bool a, bool b) const {
    return a && b;
  }
};
void div_true_kernel_cuda(TensorIteratorBase& iter);
void div_trunc_kernel_cuda(TensorIteratorBase& iter);
} // namespace at::native::binary_internal