Some simple-but-profitable tests are to compile and run the notorious
@nfib@<ncdx/nfib/ program, using different numeric types. Start with
@nfib :: Int -> Int@, and then try @Integer@, @Float@, @Double@,
-@Rational@ and maybe @Complex Float@. Code for this is distributed in
-@ghc/misc/examples/nfib/@ in a source distribution.
+@Rational@ and perhaps the overloaded version. Code for this is
+distributed in @ghc/misc/examples/nfib/@ in a source distribution.
For more information on how to ``drive'' GHC, either do @ghc -help@ or
consult the User's Guide (distributed in several pre-compiled formats