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#ifndef TH_GENERIC_FILE
#define TH_GENERIC_FILE "generic/HardShrink.c"
#else
void THNN_(HardShrink_updateOutput)(
THNNState *state,
THTensor *input,
THTensor *output,
accreal lambda_)
{
real lambda = TH_CONVERT_ACCREAL_TO_REAL(lambda_);
THTensor_(resizeAs)(output, input);
TH_TENSOR_APPLY2(real, output, real, input,
if (*input_data > lambda)
*output_data = *input_data;
else if (*input_data < -lambda)
*output_data = *input_data;
else
*output_data = 0;
);
}
void THNN_(HardShrink_updateGradInput)(
THNNState *state,
THTensor *input,
THTensor *gradOutput,
THTensor *gradInput,
accreal lambda_)
{
real lambda = TH_CONVERT_ACCREAL_TO_REAL(lambda_);
THNN_CHECK_NELEMENT(input, gradOutput);
THTensor_(resizeAs)(gradInput, input);
TH_TENSOR_APPLY3(real, gradInput, real, gradOutput, real, input,
if (*input_data > lambda || *input_data < -lambda)
*gradInput_data = *gradOutput_data;
else
*gradInput_data = 0;
);
}
#endif
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