tomahawkins at gmail.com
Wed Mar 3 00:16:02 EST 2010
On Wed, Mar 3, 2010 at 6:11 AM, Tom Hawkins <tomahawkins at gmail.com> wrote:
> On Wed, Mar 3, 2010 at 6:07 AM, Ivan Miljenovic
> <ivan.miljenovic at gmail.com> wrote:
>> On 3 March 2010 16:06, Tom Hawkins <tomahawkins at gmail.com> wrote:
>>> How do I track down an reference to an undefined value? My program
>>> must not be using a library correctly because the program makes no
>>> direct use of 'undefined'. Running with +RTS -xc yields:
>>> <GHC.Err.CAF>Test: Prelude.undefined
>> Are you matching all patterns? When compiling with -Wall does it make
>> any complaints?
> -Wall only complains about shadow bindings, defined but not used, and
> no type signature. But no unmatched patterns.
BTW, I'm using:
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