description "std::Add box example. Also shows how to print an output of a box in bbi. "
category "example"

include std
new Add a
set a.In1 1
set a.In2 2

# In a print command, any string enclosed between dollars 
# is interpreted as an output of a box (of the form 'box.output').
# Before printing, bbi substitutes it by the value of the output.
# There must be an adaptor to string for that type of output.
print $a.Out$