[Haskell-cafe] Most Important GHC extensions to learn/use?
ketil at malde.org
Fri Jun 1 17:10:35 CEST 2012
wren ng thornton <wren at freegeek.org> writes:
> There are a bunch which are mostly just syntax changes. The important
> ones are:
Also, if you have new GHC, it will often tell you if/when you need to
enable extensions. E.g.:
Line 8: 1 error(s), 0 warning(s)
`Pos' has no constructors (-XEmptyDataDecls permits this)
In the data type declaration for `Pos'
If I haven't seen further, it is by standing in the footprints of giants
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