id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,os,architecture,failure,difficulty,testcase,blockedby,blocking,related
4529,Deriving Data does not work for attached code,mitar,,"For attached code I get this error:

{{{
Test2.hs:19:48:
    Could not deduce (Real r, Random r)
      from the context (Data r, Typeable1 t)
      arising from a use of `f'
    Possible fix:
      add (Real r, Random r) to the context of
        the type signature for `dataCast1'
        or the instance declaration
    In the first argument of `gcast1', namely `f'
    In the expression: gcast1 f
    In an equation for `dataCast1': dataCast1 f = gcast1 f
}}}",bug,closed,normal,,Compiler (Type checker),7.1,invalid,,mmitar@…,Unknown/Multiple,Unknown/Multiple,None/Unknown,,,,,