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#ifndef TH_GENERIC_FILE
#define TH_GENERIC_FILE "generic/L1Cost.c"
#else
void THNN_(L1Cost_updateOutput)(
THNNState *state,
THTensor *input,
THTensor *output)
{
THNN_CHECK_DIM_SIZE(output, 1, 0, 1);
accreal sum = 0;
TH_TENSOR_APPLY(real, input,
sum += fabs(*input_data);
);
THTensor_(set1d)(output, 0, sum);
}
void THNN_(L1Cost_updateGradInput)(
THNNState *state,
THTensor *input,
THTensor *gradOutput,
THTensor *gradInput)
{
THNN_CHECK_NELEMENT(input, gradOutput);
THTensor_(resizeAs)(gradInput, input);
TH_TENSOR_APPLY2(real, gradInput, real, input,
if (*input_data > 0)
*gradInput_data = 1;
else if (*input_data < 0)
*gradInput_data = -1;
else
*gradInput_data = 0;
);
}
#endif
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