torch.isposinf
torch.isposinf(input, *, out=None) -> Tensor
Tests if each element of "input" is positive infinity or not.
Parameters:
      input (Tensor) -- the input tensor.
Keyword Arguments:
      out (Tensor, optional) -- the output tensor.
Example:
  >>> a = torch.tensor([-float('inf'), float('inf'), 1.2])
  >>> torch.isposinf(a)
  tensor([False,  True, False])
