All,

 It's just a simple comparison.  IF the value of 'ptr1' is less than
 the value of 'size' AND if pass is not zero, execute the rest of the
 statement.  Otherwise, don't bother.  Just go on with the next
 statement.   It doesn't matter if ptr1 ever gets greater than '1'.
 As long as it is less than size, then the comparison is true (a '1').
 Otherwise, it fails.  Same with 'pass'.  If pass is ever anything
 other than '1', it fails, and consequently, so does the whole
 statement.  Very simple.  Very easy to understand.

                                           Regards,

                                             Jim





On Fri, 26 January 2001, Alok Dubey wrote:

>
> i dont know how it makes sense to u ,.. but from wht i see ur ptr1 is never
> gona be more than 1
> alok
>
>
> > -----Original Message-----
> > From: Oluseyi Odeinde [SMTP:seyi@OCEAN.CF.AC.UK]
> > Sent: Friday, January 26, 2001 6:10 PM
> > To:   PICLIST@MITVMA.MIT.EDU
> > Subject:      Re: [OT]: quick question on C
> >
> > cheers. makes sense!
> >
> > for (pass=rx_str[ptr1+1]; ptr1<size && pass>0; ptr1++) {
> >
> >
> > D Lloyd wrote:
> >
> > > Hi,
> > >
> > > Its the same as
> > >
> > > "for( set initial condition ; termination condition ; iteration
> > condition
> > > )", if you like....where the termination condition is met if 'ptr1' is
> > less
> > > than 'size' AND pass is a non zero value.
> > >
> > > Dan
> > >
> > >  (Embedded     Oluseyi Odeinde <seyi@OCEAN.CF.AC.UK>@MITVMA.MIT.EDU>
> > >  image moved   26/01/2001 12:00
> > >  to file:
> > >  pic13186.pcx)
> > >
> > > Please respond to pic microcontroller discussion list
> > >       <PICLIST@MITVMA.MIT.EDU>
> > > Sent by:  pic microcontroller discussion list <PICLIST@MITVMA.MIT.EDU>
> > >
> > > To:   PICLIST@MITVMA.MIT.EDU
> > > cc:
> > > Subject:  Re: [OT]: quick question on C
> > >
> > > Security Level:?         Internal
> > >
> > > u lost me there!
> > >
> > > Alok Dubey wrote:
> > >
> > > > whoops
> > > >  make that a boolean AND of size and pass
> > > > sorry
> > > > alok
> > > >
> > > > > -----Original Message-----
> > > > > From: Alok Dubey (OCS-BLRAKS-AVS)
> > > > > Sent: Friday, January 26, 2001 5:25 PM
> > > > > To:   'pic microcontroller discussion list'
> > > > > Subject:      RE: [OT]: quick question on C
> > > > >
> > > > > i hnk it is a boolean of  size and pass which is then compared to
> > ptr1
> > > > > alok
> > > > >
> > > > >
> > > > >       -----Original Message-----
> > > > >       From:   Oluseyi Odeinde [SMTP:seyi@OCEAN.CF.AC.UK]
> > > > >       Sent:   Friday, January 26, 2001 5:15 PM
> > > > >       To:     PICLIST@MITVMA.MIT.EDU
> > > > >       Subject:        [OT]: quick question on C
> > > > >
> > > > >       i apologise if this post appears more than once - just
> > realised
> > > that
> > > > > the
> > > > >       1st time i sent it, my [OT] channel was turned off!
> > > > >
> > > > >       hello everyone,
> > > > >
> > > > >       i came across the following 'for' statement in a code:
> > > > >
> > > > >       for (pass=rx_str[ptr1+1]; ptr1<size && pass; ptr1++) {
> > > > >
> > > > >       i'm curious about about the 'ptr1<size && pass' of the
> > statement
> > > as
> > > > > i
> > > > >       have never come across a for loop layed out in this way.
> > > > >       1. is this valid?
> > > > >       2. if so, is it the same as saying 'ptr1<size && ptr1<pass' ?
> > > > >
> > > > >       TIA
> > > > >       Seyi
> > > > >
> > > > >       --
> > > > >       http://www.piclist.com hint: To leave the PICList
> > > > >       mailto:piclist-unsubscribe-request@mitvma.mit.edu
> > > > >
> > > >
> > > > --
> > > > http://www.piclist.com hint: To leave the PICList
> > > > mailto:piclist-unsubscribe-request@mitvma.mit.edu
> > >
> > > --
> > >
> > > Seyi Odeinde
> > > Instrumentation for extreme environments...earth - ocean - space
> > > Software Development Engineer
> > > Earth-Ocean Systems
> > >
> > > Email: seyi@earth-ocean.com
> > > Tel: ++44 (0) 2920 875 183 - DL
> > >      ++44 (0) 7799 537 184 - Mobile
> > >
> > > "The most exciting phrase to hear in science, the one that heralds new
> > > discoveries, is not "Eureka!" (I found it!) but "That's funny ..."
> > >                 -- Isaac Asimov
> > >
> > > --
> > > http://www.piclist.com hint: To leave the PICList
> > > mailto:piclist-unsubscribe-request@mitvma.mit.edu
> > >
> > >
> > ------------------------------------------------------------------------
> > >                    Name: pic13186.pcx
> > >    pic13186.pcx    Type: PCX Image
> > (application/x-unknown-content-type-pcxfile)
> > >                Encoding: base64
> >
> > --
> >
> > Seyi Odeinde
> > Instrumentation for extreme environments...earth - ocean - space
> > Software Development Engineer
> > Earth-Ocean Systems
> >
> > Email: seyi@earth-ocean.com
> > Tel: ++44 (0) 2920 875 183 - DL
> >      ++44 (0) 7799 537 184 - Mobile
> >
> > "The most exciting phrase to hear in science, the one that heralds new
> > discoveries, is not "Eureka!" (I found it!) but "That's funny ..."
> >                 -- Isaac Asimov
> >
> > --
> > http://www.piclist.com hint: To leave the PICList
> > mailto:piclist-unsubscribe-request@mitvma.mit.edu
> >
>
> --
> http://www.piclist.com hint: To leave the PICList
> mailto:piclist-unsubscribe-request@mitvma.mit.edu

jim@jpes.com

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu