I have enclosed below a test file that causes an error that puzzles
me. Both GHC and Hugs kick it out, so at least they agree; however, I
must admit that I don't understand it.
GHC gives the following error:
test.hs:1: Ambiguous context `{Physical taZ0}'
`Physical taZ0' arising
The Glasgow Haskell Compiler -- version 2.10
==
We are pleased to announce a new release of the Glasgow Haskell
Compiler (GHC), version 2.10. Source and Binary distribution is freely
available via the World-Wide Web and
Happy 1.5
The LALR(1) Parser Generator for Haskell
This is the nth public release of the parser generator system for
Haskell, called Happy (a dyslexic acronym for 'A Yacc-like Haskell
Parser generator').
What's new in Happy 1.5 (vs. Happy 0.9)
*
