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  • Glasgow Haskell CompilerGlasgow Haskell Compiler
  • GHCGHC
  • Issues
  • #1
Closed
Open
Issue created Sep 19, 2001 by nobody@trac-nobody

Implicit parameters cause strange behavi

ghc-5.00.1 (with glasgow-exts) compiles the following
program:

> foo :: ((?x :: Int) => b) -> Int -> b
> foo s z = s with ?x = z
> main = foo (print ?x) 42

Running the generated code prints nothing. (No output
is produced
even if we add putStr "Hello world\n" before the call
to foo).
Trac metadata
Trac field Value
Version 5.0
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution ResolvedFixed
Component Compiler
Test case
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