Maybe, there exists another possibility to print the values in the
error message like for
take (-1) xs, y % 0
The implementors declare the "internal"
class ServiceShow where serviceShows :: ...
invisible for the user,
make *everything* to be the instance of ServiceShow,
serviceShow the *functions* as `<func>' ...
and apply serviceShows to form the error messages.
?
But I wrote recently kind of rubbish on the subject of head [].
And I am sorry if this one occurs silly too!
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Sergey Mechveliani
[EMAIL PROTECTED]