Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!srcsip!coltrane!carpent
From: carpent@coltrane.SRC.Honeywell.COM (Todd Carpenter)
Newsgroups: comp.sys.amiga
Subject: Re: C help
Message-ID: <20008@srcsip.UUCP>
Date: 5 Apr 89 12:54:21 GMT
Sender: news@src.honeywell.COM
Lines: 17
In-reply-to: ewhac@well.UUCP's message of 5 Apr 89 09:05:50 GMT


  A short time back I asked for help on doing a fast array copy.  The jury
  agrees that the best way to do it is (some approximation to):

  CopyMem (new_state, state, (LONG) NUM_STATES * sizeof (ushort));

  Some people wondered *why* I wanted to do this.  Seemed it was a messy way to
  do it.  I could keep track of the modifications, and undo all changes later.
  Well, I've tried both ways.  It is a stochastic modification of the
  current state, and a non determinitic number of values will be changed.  So
  there is a break even point somewhere.

  And yes, roughly a zillion and a half people told me that integer expressions
  are done in integer arithmetic.  See what happens when you never actually
  bought K&R but just borrowed it from people?

  Thanks for all your help!