It's arguably a bug in ghci -- but it's not quite clear what the right
answer is. Suppose you are in the top level scope of two modules with
differing default declarations. So GHCi uses the default default for
the top level, always.
Simon
| -Original Message-
| From: [EMAIL
Sven,
You've already heard from nhc, hbc, and ghc, so here's the
perspective from Hugs-land to complete your set.
| What is the rationale for the second condition, i.e. why is no
| defaulting done when a user-defined class is involved? Example:
Defaulting is one of those places where Haskell
Sven Panne wrote:
The Haskell 98 report, section 4.3.4 states:
[...] In situations where an ambiguous type is discovered, an
ambiguous type variable is defaultable if at least one of its
classes is a numeric class (that is, Num or a subclass of Num)
and if all of its classes
