On Thu, Mar 4, 2010 at 9:46 AM, David Matthews
wrote:
> In Poly/ML a single constructor is the identity function
Thanks, that's exactly what I needed to know.
> There's no difference in implementation between an abstype and a datatype.
> "abstype" is a very old construction in Standard ML and p
Brian Huffman wrote:
Hello all,
In Haskell, when I declare the following type:
data Foo = MkFoo (Int, Bool)
the constructor "MkFoo" has a run-time cost: A pointer must be
dereferenced whenever I pattern-match on MkFoo, and memory is
allocated when I apply the MkFoo constructor.
On the other h
Hello all,
In Haskell, when I declare the following type:
data Foo = MkFoo (Int, Bool)
the constructor "MkFoo" has a run-time cost: A pointer must be
dereferenced whenever I pattern-match on MkFoo, and memory is
allocated when I apply the MkFoo constructor.
On the other hand, if I declare this
