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From: "Robert Martin" <rmartin@oma.com>
Subject: Re: Why C++ is successful
Date: 1998/08/14
Message-ID: <6r1kt7$66g$1@hirame.wwa.com>#1/1
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Date: 1998-08-14T00:00:00+00:00
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Jean-Pierre Rosen wrote in message <6r1e1a$mj$1@platane.wanadoo.fr>...
>Robert Dewar a �crit dans le message ...
>>2) to write finite state machines encoding the state into the PC. Yes,
some
>>people prefer case statements for this purpose, but many people prefer the
>>use of labels and gotos as the most obvious translation of labeled states
>>with arrows between them.
>
>I agree with this one,
>
>>For example, I find the following perfectly clear:
>>
>>   <<sort>> for J in 1 .. N - 1 loop
>>       if D (J) > D (J + 1) then
>>   Swap (D(J), D(J + 1));
>>          goto Sort;
>>       end if;
>>
>But not on this one, since:
>loop
>   Inner: for J in 1 .. N - 1 loop
>       if D (J) > D (J + 1) then
>          Swap (D(J), D(J + 1));
>          exit Inner;
>       end if;
>end loop;
>reflects the intent better (at least to my taste).



When I need to write a quick sort, and don't have access to a decent sort
function, then I prefer this simple structure...

bool unsorted = true;
for (int i=0; unsorted && i<(N-1); i++)
{
  unsorted = false;
  for (int j = 0; j<(N-i-1); j++)
  {
    if (d[j] > d[j+1])
    {
      swap(d, j);
      unsorted = true;
    }
  }
}


Robert C. Martin    | Design Consulting   | Training courses offered:
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