function [determined, val] = determine_value_adder(bnode, bnet)
% DETERMINE_VALUE_ADDER Determine the value of an adder node, if possible
% [determined, val] = determine_value_adder(bnode, bnet)

p = bnode.parents(1);
if bnet.obs_mask(p);
  determined = 1;
  val = wrap(bnet.values(p) + bnode.delta, bnode.self_size);
else
  determined = 0;
  val = [];
end
