foldl'

[Simon Peyton-Jones]

No good reason -- but it's too late for H98.  Adding it to=20
the Prelude would break some existing programs (ones which
define their own foldl'), and it's an unforced change.  Alas.

Simon

| -----Original Message-----
| From: Jon Fairbairn [mailto:Jon.Fairbairn@cl.cam.ac.uk]=20
| Sent: 28 July 2001 11:28
| To: haskell@haskell.org
| Subject: foldl'
|=20
|=20
| Unless I'm mistaken, foldl' (the strict version of foldl)=20
| doesn't appear in (the export list of) the standard prelude=20
| or the list library.
|=20
| Is there a good reason for this? New users quite quickly
| find that they need it.
|=20
|  J=F3n
|=20
|=20
| --=20
| J=F3n Fairbairn                                =20
| Jon.Fairbairn@cl.cam.ac.uk
| 31 Chalmers Road                                        =20
| jf@cl.cam.ac.uk
| Cambridge CB1 3SZ            +44 1223 570179 (after 14:00=20
| only, please!)
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