-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 12/9/10 20:40 , Magicloud Magiclouds wrote:
First to notice that. So standard-wise, there is no way to do state thing?
There seems to be a lot of confusion as to what the language standard covers. It is a bare minimum; practical libraries are not part of its purview, but only the minimum needed to make implementing practical libraries possible. This includes some baked-in assumptions: for example, the "do" construct requires that the Monad typeclass support a "fail" method, numeric literals require the Num typeclass to support a "fromIntegral" method, etc., and since you can't extend typeclasses after definition that means Num and Monad are overspecified compared to other types in the language standard. Take a look at the Haskell Platform for a practical compiler-and-libraries standard. - -- brandon s. allbery [linux,solaris,freebsd,perl] allbery@kf8nh.com system administrator [openafs,heimdal,too many hats] allbery@ece.cmu.edu electrical and computer engineering, carnegie mellon university KF8NH -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.10 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk0EI/IACgkQIn7hlCsL25Xc1wCgi9saZgo9h4RScI+ZAyR843sG eHoAn2J7Yfn664oaL1zAEZxQDLCat04k =SDlV -----END PGP SIGNATURE-----