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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!saimiri.primate.wisc.edu!ames!ads.com!saturn!bhanafee
- From: bhanafee@picasso.ads.com (Brian Hanafee)
- Subject: Re: Curves in QuickDraw GX
- In-Reply-To: jmunkki@vipunen.hut.fi's message of 1 Jan 93 18:34:51 GMT
- Message-ID: <BHANAFEE.93Jan4144431@picasso.ads.com>
- Sender: usenet@ads.com (USENET News)
- Organization: Advanced Decision Systems, Mountain View, CA 94043, +1 (415)
- 960-7300
- References: <1i08akINNj9b@agate.berkeley.edu> <1i1urmINNt8g@mirror.digex.com>
- <1993Jan1.183451.22522@nntp.hut.fi>
- Date: Mon, 4 Jan 1993 22:44:31 GMT
- Lines: 21
-
-
- In article <1993Jan1.183451.22522@nntp.hut.fi> jmunkki@vipunen.hut.fi (Juri Munkki) writes:
- >I agree totally. In addition for QD GX, they used fixed point math. No
- >current languages have built-in support for fixed point math, so a high
- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
- *Almost* no current languages. Ada does (see section 3.5.9 of the Ada
- LRM). Though I still wouldn't recommend using Ada to write QD GX,
- it's a feature that of Ada that I'd really like to see in some other
- languages. Note that this is in addition to, not in place of, integer
- and floating types. When fixed point types are the right thing, it's
- much easier than using integers and trying to keep track of the binary
- point yourself. Let the compiler do all the work!
-
- >level implementation will not benefit fully from the integer speed of
- >fixed point.
-
- --
- Brian Hanafee Advanced Decision Systems
- bhanafee@ads.com 1500 Plymouth Street
- (415) 960-7300 Mountain View, CA 94043-1230
-