Given a declaration
data S = S { a :: Int, b :: ! Int }
I expect
a (S { a = 0, b = undefined })
to force the undefined in the b field of the S (and ghci agrees with me).
However:-
__ __ __ __ ____ ___ _________________________________________
|| || || || || || ||__ Hugs 98: Based on the Haskell 98 standard
||___|| ||__|| ||__|| __|| Copyright (c) 1994-2005
||---|| ___|| World Wide Web: http://haskell.org/hugs
|| || Bugs: http://hackage.haskell.org/trac/hugs
|| || Version: September 2006 _________________________________________
Haskell 98 mode: Restart with command line option -98 to enable extensions
Type :? for help
Main> a (S { a = 0, b = 1 })
0
Main> a (S { a = 0, b = undefined })
0
Main>
Is this a known feature?
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