3 Mar
2010
3 Mar
'10
1:16 p.m.
On Wed, Mar 3, 2010 at 6:11 AM, Tom Hawkins <tomahawkins@gmail.com> wrote:
On Wed, Mar 3, 2010 at 6:07 AM, Ivan Miljenovic <ivan.miljenovic@gmail.com> wrote:
On 3 March 2010 16:06, Tom Hawkins <tomahawkins@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: GHC 6.12.1 bytestring 0.9.1.5 containers 0.3.0.0