On Fri, 12 Oct 2001, Simon Peyton-Jones wrote: > | GHC is oddly particular about decimal points in "read"-ing in > | of Doubles in scientific notation. It seems that read > | "3.0e-06" is acceptable but read "3e-06" is not (both read > | "3" and read "3.0" work fine as Doubles). It's the same in (snip) > It's an unforced change and therefore to be regarded with > deep suspicion. I'd be interested in people's views about this.
I was actually recently caught out by this - I'd assumed that 3e-06 would work (as it does in Modula-3, etc.), and it didn't. Personally, my preference would be for it to mean just the same as 3.0e-06 - it's annoying having to go through my physical constants now adding the rather-redundant ".0"'s everywhere. (-: But, with the sort of parsing I'm doing, "terms" are largely separated by whitespace anyway; maybe if they weren't I'd want things different. -- Mark _______________________________________________ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell
