local Tanh, parent = torch.class('cudnn.Tanh','cudnn._Pointwise')

function Tanh:__init(inplace)
   parent.__init(self, inplace)
   self.mode = 'CUDNN_ACTIVATION_TANH'
end

function Tanh:updateOutput(input)
  if not self.mode then self.mode = 'CUDNN_ACTIVATION_TANH' end
  return parent.updateOutput(self, input)
end