#ifndef CAFFE2_OPERATORS_HARD_SIGMOID_H_
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#define CAFFE2_OPERATORS_HARD_SIGMOID_H_
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#include <vector>
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#include "caffe2/operators/elementwise_ops.h"
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namespace caffe2 {
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template <class Context>
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struct HardSigmoidFunctor {
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explicit HardSigmoidFunctor(OperatorBase& op)
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: alpha(op.GetSingleArgument<float>("alpha", 0.2f)),
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beta(op.GetSingleArgument<float>("beta", 0.5f)) {}
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template <typename T>
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bool operator()(const int N, const T* X, T* Y, Context* context) const;
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const float alpha, beta;
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};
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template <class Context>
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struct HardSigmoidGradientFunctor {
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explicit HardSigmoidGradientFunctor(OperatorBase& op)
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: alpha(op.GetSingleArgument<float>("alpha", 0.2f)) {}
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template <typename T>
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bool Forward(
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const std::vector<int>& Y_dims,
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const std::vector<int>& dY_dims,
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const T* Y,
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const T* dY,
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T* dX,
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Context* context) const;
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const float alpha;
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};
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} // namespace caffe2
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#endif // CAFFE2CAFFE2_OPERATORS_HARD_SIGMOID_H_
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