showCommandF :: String -> F a b -> F a b
showCommandF prefix fudget
showCommandF
prints the low level input and output of a fudget on the standard
error output. This can be helpful when debugging fudgets.
prefix :: String
-
prefix must be given on the command
line to switch on output from this occurence of
showCommandF
.
fudget :: F a b
trace
in the hbc_library module Trace.