src/operator/swapaxis.cc

/*!
 * Copyright (c) 2015 by Contributors
 * \file swapaxis.cc
 * \brief
 * \author Ming Zhang
*/

#include "./swapaxis-inl.h"

namespace mxnet {
namespace op {

template<>
Operator* CreateOp<cpu>(SwapAxisParam param, int dtype) {
  Operator *op = NULL;
  MSHADOW_REAL_TYPE_SWITCH(dtype, DType, {
    op = new SwapAxisOp<cpu, DType>(param);
  });
  return op;
}

Operator* SwapAxisProp::CreateOperatorEx(Context ctx, std::vector<TShape> *in_shape,
                                         std::vector<int> *in_type) const {
  std::vector<TShape> out_shape, aux_shape;
  std::vector<int> out_type, aux_type;
  CHECK(InferShape(in_shape, &out_shape, &aux_shape));
  CHECK(InferType(in_type, &out_type, &aux_type));
  DO_BIND_DISPATCH(CreateOp, param_, in_type->at(0));
}


DMLC_REGISTER_PARAMETER(SwapAxisParam);

MXNET_REGISTER_OP_PROPERTY(SwapAxis, SwapAxisProp)
.add_argument("data", "NDArray-or-Symbol", "Input array.")
.add_arguments(SwapAxisParam::__FIELDS__())
.describe(R"code(Interchanges two axes of an array.

Examples::

  x = [[1, 2, 3]])
  swapaxes(x, 0, 1) = [[ 1],
                       [ 2],
                       [ 3]]

  x = [[[ 0, 1],
        [ 2, 3]],
       [[ 4, 5],
        [ 6, 7]]]  // (2,2,2) array

 swapaxes(x, 0, 2) = [[[ 0, 4],
                       [ 2, 6]],
                      [[ 1, 5],
                       [ 3, 7]]]
)code" ADD_FILELINE);

NNVM_REGISTER_OP(SwapAxis).add_alias("swapaxes");
}  // namespace op
}  // namespace mxnet