flattenop.h

#pragma once

#include "compute/operation.h"
#include "tensor/tensor.h"

namespace magmadnn {
namespace op {

template <typename T>
class FlattenOp : public Operation<T> {
public:
    FlattenOp(Operation<T> *input, bool copy=true, bool needs_grad=true);

    std::string to_string() { return "Flatten(" + input->to_string() + ")"; }
    
protected:
    Tensor<T> *_eval(bool recompute);
    Tensor<T> *_grad(Operation<T> *consumer, Operation<T> *var, Tensor<T> *grad);

    Operation<T> *input;
    Tensor<T> *input_tensor;

    bool copy;

};

template <typename T>
FlattenOp<T>* flatten(Operation<T> *input, bool copy=true, bool needs_grad=true);

} // namespace op
} // namespace magmadnn