Comment on The Haskell user experienceparentComments−creichert11yUsing the trace trick needs to guard on False: myfun a b | trace ("myfun " ++ show a ++ " " ++ show b) False = undefined myfun a b = ... See here for some other helpful trace functions:https://hackage.haskell.org/package/base-4.8.1.0/docs/Debug-...There is even a traceStack which will print a call stack if available.
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Using the trace trick needs to guard on False:
See here for some other helpful trace functions:https://hackage.haskell.org/package/base-4.8.1.0/docs/Debug-...
There is even a traceStack which will print a call stack if available.