Re: Wanted: warning option for usages of unary minus

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Taral wrote:

On 5/17/07, Joseph H. Fasel wrote:

...

*Sigh* The problems with unary minus were discussed in the dim mists of time before we published the first Haskell report. We considered then using a separate symbol for unary negation (as does APL, for example), but (IIRC) this was regarded as unfriendly to Fortran programmers.

[breaking cc list]

Would this kind of thing be eligible for Haskell'? I never had a problem with _1 in APL-type languages... and I think it's best to be very clear about intent.

Haskell' is "supposed to" be a conservative standard describing mostly-already-implemented features. (of course that is why to implement features like this efficiently if there is a good reason for them) underscore seems like a bad candidate in haskell because: _1 is presently a lowercase haskell identifier some people want mid-number underscores 1_048_576 ... Isaac -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGTXVBHgcxvIWYTTURAv+HAJ4mCqpXLLUEHaYeHrw8l6lx3eBr4QCgnTNl +g5Rllpuk/8s6p+1hTxi4Ew= =IvPt -----END PGP SIGNATURE-----