[mercury-users] intermodule optimization and type classes

[Fergus Henderson]

On 02-Jan-2002, Michael Day <mikeday at bigpond.net.au> wrote:
> 
> I get a compile error like this when I turn on intermodule optimization:
> 
> ints/vector.int:004: Error: typeclass `vector:vector/1' multiply defined.
> int2s/vector.int2:003:   Here is the previous definition of typeclass `vector:vector/1'.
> ints/vector.int:004:   The superclass constraints do not match.
> 
> Now, it really is only defined in one place, and it compiles and runs fine 
> when the option is turned off. Is this likely to be my fault?

That one looks to me like a Mercury compiler bug.

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
The University of Melbourne         |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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