Sent: Friday, December 27, 2002 2:27 PM
To: ruby-talk@ruby-lang.org
Subject: Re: 1210 / 100 = 12? what?
no i didn’t realize that. i thought ruby would automatically
change it to a
float if need be, i.e. with divison, just as it changes to
Bignum if need be.
honestly i don’t like it. now i have to go around adding .0’s
all over the
place to make sure the math comes out right. and in some
places i have to do
things like multiple by 1.0 b/c certain values come from cgi
script variables
i have no control over.
(though I’m late in the thread) I’m in agreement. I like Ruby since it’s
supposed to be closer to our minds 
When I scribble on a division, I should not be needing to append “.0” 
Com’on, I thought we’ve passed thru 3GL langs (I admit I still love fortran
and c, but I have to grow :-)…
I’d like to introduce the "" for integer division though 
well, it will suffice now that i know, but to me it is
definitely not POLS.
-tom
kind regards,
-botp
···
Tom Sawyer [mailto:transami@transami.net] wrote:
This is one of the things where a statically typed language will do
the “right” thing but a dynamically typed language won’t. The #/
method returns a new reference to a Fixnum object, because only
Fixnums are known as the receiver and message object. C et al. will
silently and automatically convert the integers to floating point
values.
What I’d actually like to see (and in some ways, this is Perl
wantarray envy) is this:
(n, r) = 5 / 4 # n == 1, r == 1
In this way, I don’t have to do:
n = 5 / 4
r = 5 % 4
It may not be any more efficient, but it looks cleaner. Sort of.
Perhaps something like this could be done:
(n, r) = 5 // 4 # n == 1, r == 1
Introducing a new operator, #//.
I generally prefer integer or fixed-point operations over floating
point operations (greater accuracy at the cost of variable
precision), so I find them less surprising.
-austin
– Austin Ziegler, austin@halostatue.ca on 2002.12.27 at 23.42.40
···
On Sat, 28 Dec 2002 13:23:24 +0900, Peña, Botp wrote:
Tom Sawyer [mailto:transami@transami.net] wrote:
no i didn’t realize that. i thought ruby would automatically
change it to a float if need be, i.e. with divison, just as it
changes to Bignum if need be.
honestly i don’t like it. now i have to go around adding .0’s all
over the place to make sure the math comes out right. and in some
places i have to do things like multiple by 1.0 b/c certain
values come from cgi script variables i have no control over.
(though I’m late in the thread) I’m in agreement. I like Ruby
since it’s supposed to be closer to our minds
When I scribble on a division, I should not be needing to append
“.0”
Com’on, I thought we’ve passed thru 3GL langs (I admit I still
love fortran and c, but I have to grow :-)…