Missing prod function torch.prod or a.prod() where a is Tensor

[haytham2597]

Hi, i notice that in TorchSharp is missing the torch.prod(input, dim, keepdim=False)
Including in THSTensor.cpp missing the prod function but have cumprod or cartesian_prod that is not i need

I created this but performance may be bad and this snippet code miss dim parameter

 public static double Product<T>(this IEnumerator<T> enumer)
 {
     double result=1;
     using (enumer)
         while (enumer.MoveNext())
             if(enumer.Current != null)
                 result *= Convert.ToDouble(enumer.Current);
     return result;
 }
 
 public static double Prod(this torch.Tensor tensor)
 {
     if (tensor.is_floating_point())
     {
         if (tensor.dtype == torch.ScalarType.Float32)
             return tensor.data<float>().GetEnumerator().Product();
         if (tensor.dtype == torch.ScalarType.Float64)
             return tensor.data<double>().GetEnumerator().Product();
     }
     if (tensor.dtype == torch.ScalarType.Int64)
         return tensor.data<long>().GetEnumerator().Product();
     return tensor.data<int>().GetEnumerator().Product();
 }

[NiklasGustafsson]

@haytham2597 -- thank you for catching that. It's quite the omission. :-)