🚀 go-pugleaf

In article <mwm.2gwf@contessa.palo-alto.ca.us>, mwm@contessa.palo-alto.ca.us (Mike Meyer) writes:
|> In <1992Oct29.163702.9849@texhrc.uucp>, pyeatt@Texaco.com (Larry D. Pyeatt) wrote:
|> > In article <SPACKMAN.92Oct28142448@disco-sol.dfki.uni-sb.de>, spackman@disco-sol.dfki.uni-sb.de (Stephen Spackman) writes:
|> > |> both have really
|> > |> stupid type declaration syntax.
|> > 
|> > What could be simpler and more clear than:
|> > 
|> [Pascal deleted - or is that wishfull thinking :-]
|> > or in C:
|> > 
|> > typedef float[26] mytype;
|> > typedef char[201] yourtype;
|> 
|> Well, to start with, those are wrong. That should be:
|> 
|> typedef float mytype[26] ;
|> typedef char yourtype[201] ;
|> 
|> Which just goes to show you that it isn't all that simple and clear.

oops, I got to thinking in Pascal mode and didn't quite make the switch.

|> 
|> > would print out the value of the first element in the array, while the C
|> > statement
|> > 
|> > printf("%f\n",mine['a']);
|> >  
|> > would print out some weird value from the 97th position of an array which
|> > only contains 26 elements.  It would not complain, hiccup, warn, or 
|> > otherwize help you find your error.
|> > you have to write
|> 
|> You need to get a better compiler. Mine responds to the above with the
|> message:
|> 
|> test.c 7 Warning 83: reference beyond object size
|> 
|> 	<mike

What compiler are you using?

#include <stdlib.h>
#include <stdio.h>
typedef float mytype[26];
main()
{ mytype mine;
  printf("%f\n",mine['a']);
}

I just tried it on 6 different C compilers.  None of them gave any sort of
warning.  C does not do range checking.  If your C compiler complains, then
it is not a standard C compiler.  Not only does it compile, it also runs
without reporting a run time error.  No language of the Pascal family would
let such an obvious error slip by unless the programmer specifically requested
it. See if you get a warning on this piece of code:

#include <stdlib.h>
#include <stdio.h>
typedef float mytype[26];
main()
{ mytype mine;
  char tm = `a`;
  printf("%f\n",mine[tm]);
}

-- 
Larry D. Pyeatt                 The views expressed here are not
Internet : pyeatt@texaco.com    those of my employer or of anyone
Voice    : (713) 975-4056       that I know of with the possible
                                exception of myself.