Path: utzoo!attcan!uunet!mcvax!prlb2!kulcs!kulesat!esat!vanpetegem
From: vanpetegem@liszt.kulesat.uucp
Newsgroups: comp.lang.c
Subject: Problem with ()?():() as ending test in for-loop
Message-ID: <1200@liszt.kulesat.uucp>
Date: 23 May 89 18:53:21 GMT
Organization: Katholieke Universiteit Leuven,ESAT - dep. Elect. Engineering, Belgium
Lines: 42


  Hello every C programmer there,

I have a problem with VAX C V2.4-026 under VMS V5.0-2.

The code with which I am in trouble, goes as follows:

	 for(n = 1;  ((n % 10) ? (k > 2) : (n < 100));  n++)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
           {
             ..... (in some expressions k is changed, depending on n)
	   }

What I want to do is simply perform the test (k > 2) as ending test for the
"for-loop", except in the cases where n is dividable by 10. In the latter
situation the test (n < 100) has to be done. But... When n becomes equal to
10 the "for-loop" is stopped already. So I think neither the first nor the
second test is evaluated and only (n % 10) is taken into account (the first
test (k > 2) is only important for n taking values from 50 on).

Is the above syntax not allowed (I doubt: the compiler gives no error
messages) ? Or what is wrong with it ? Any suggestions to overcome this
problem ?


Thanks in advance for every answer that can help me.


                                   Wim VP.


===============================================================================

  Wim Van Petegem                     Phone: + 32 16 / 22 09 31 (1083)
  Katholieke Universiteit Leuven      Telex: 25941 elekul
  Departement Elektrotechniek         Fax:   + 32 16 / 22 18 55 
  Afdeling ESAT-MICAS                 BITNET: vanpetegem%kulesat.uucp@blekul60
  Kardinaal Mercierlaan 94            UUCP:   vanpetegem@kulesat.uucp
  3030 Heverlee
  BELGIUM

===============================================================================