Re: [TCLCORE] TIP #347: Add 'string is bignum' to the 'string is' Subcommand

[Donald G P. <dg...@ni...>]

Daniel A. Steffen wrote:
> On Wed, Feb 11, 2009 at 19:55, Jeff Hobbs <je...@ac...> wrote:
>> As to [string is number]
> 
> looking at the implementation, it turns out that [string is double] is
> actually [string is number] already, as it does not restrict to
> numbers that fit inside the C 'double' type...
> 
> there is a TODO in that code, but given that that's been there since
> the original TIP#237 implementation and that this is now established
> behaviour in 8.5, we may be stuck with it:

That TODO was never about changing the meaning of what [string is 
double] tests for, but about reconsidering the particular implementation
in place at that point.  The meaning of [string is double] got
established as accepting integers when it was defined in terms of
what strtod() accepted, and they accepted integers.

-- 
| Don Porter          Mathematical and Computational Sciences Division |
| don...@ni...             Information Technology Laboratory |
| http://math.nist.gov/~DPorter/                                  NIST |
|______________________________________________________________________|