From: "trans.  (T. Onoma)" <transami@...>
Date: 2004-10-31T02:40:40+09:00
Subject: Re: range.c

BTW, Matz, are you still planing to alias #member? to #include?  That fits in 
with the work I'm doing so I can easily do it and adjust docs as I promised.

I will present my complete proposal for range later (on monday I think) and 
then you and the community can let me know what you think.

Thanks,
T.


On Saturday 30 October 2004 12:43 pm, trans.  (T. Onoma) wrote:
| HI --
|
| I have been working on improving Range class today per discussions on
| ruby-talk. First I created a prototype in pure Ruby --that looks great.
| Then I delimited the changes into two groups: those readily doable (will
| not cause back-breakage) and those that are not.
|
| So now I am working on the C source to incorporate readily doable changes
| --the main of which is to add an exclude_start? parameter. I have already
| done this and tested it. Works well. The only problem I have is how to
| change the hash method:
|
| static VALUE
| range_hash(range)
|     VALUE range;
| {
|     long hash = EXCL(range);
|     VALUE v;
|
|     v = rb_hash(rb_ivar_get(range, id_beg));
|     hash ^= v << 1;
|     v = rb_hash(rb_ivar_get(range, id_end));
|     hash ^= v << 9;
|     hash ^= EXCL(range) << 24;
|     hash ^= EXCLB(range) << 25;   /* 25? what number? */
|
|     return LONG2FIX(hash);
| }
|
| Also, I am using 1.8.2pre2 code, should I be using 1.9?
|
| Thanks,
| T.
|
| P.S. I will discuss further once I fix the above.