#1385: (1,True) == (2,False) doesn't compile
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Reporter: igloo | Owner:
Type: bug | Status: new
Priority: high | Milestone: 6.8
Component: Compiler (Type checker) | Version: 6.7
Severity: normal | Resolution:
Keywords: | Difficulty: Unknown
Os: Unknown | Testcase: tc049
Architecture: Unknown |
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Old description:
> This module:
> {{{
> module Foo where
>
> foo = (1,True) == (2,False)
> }}}
> currently fails to compile:
> {{{
> No instance for (Eq (t, Bool))
> arising from a use of `==' at q.hs:4:6-26
> Possible fix: add an instance declaration for (Eq (t, Bool))
> In the expression: (1, True) == (2, False)
> In the definition of `foo': foo = (1, True) == (2, False)
> }}}
> but this does compile:
> {{{
> module Foo where
>
> foo = (1,True) == (2,False)
> }}}
New description:
This module:
{{{
module Foo where
foo = (1,True) == (2,False)
}}}
currently fails to compile:
{{{
No instance for (Eq (t, Bool))
arising from a use of `==' at q.hs:4:6-26
Possible fix: add an instance declaration for (Eq (t, Bool))
In the expression: (1, True) == (2, False)
In the definition of `foo': foo = (1, True) == (2, False)
}}}
but this does compile:
{{{
module Foo where
foo = 1 == 2
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1385>
GHC <http://www.haskell.org/ghc/>
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