OK, what exactly does this "->" operator accomplish?  My book says it is a
"structure pointer operator", which might as well say it was a Left Handed
Metric 1" Macedonian Rubber-headed Fiddle Wrench and I'd still be none the
wiser.

 --Lawrence

----- Original Message -----
From: "michael brown" <n5qmg@AMSAT.ORG>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Tuesday, February 26, 2002 7:14 PM
Subject: Re: [pic]:struct+pointer


> ----- Original Message -----
> From: "Also-Antal Csaba"
> > But if I want change the value of temperature in the struct, with this:
> > (*house[index].numb).temperature=temp;
> > I get this message:
> > varibles.c: 108: Can't generate code for this expression (error)
>
> Doesn't picc allow you to say:
>
>  house[index]->numb->temperature=temp
>
> (I think this is correct, but you have a complex setup)
>
> > This code is work:
> > ship1.temperature = 999;
> >
> > and this not:
> >
> > cost ship * p;
> > p=&ship1;
> > (*p).temperature=123;
> > the error message is same.
>
> p->temperature
>
> >
> > Why???
> >
> >
> > typedef struct {
> > char address;
> >
> > int temperature;
> > char adjust;
> > char max_alarm;
> > char min_alarm;
> > signed char tem_cal;
> >
> > int relhum;
> > int pwm;
> > char spay_time;
> > char spay_dlay;
> > char min_hum;
> > char max_hum;
> > char str_time;
> > char stp_time;
> > signed char rh_cal;
> >
> > int light;
> > int optimum;
> > int close_time;
> > }ship;
> >
> > typedef struct {
> > const ship * numb;
> > }blokk;
> >
> >
> >
> > static bank3 ship ship1 = 111,210,0,400,40,-123,
> > 550,1000,10,100,40,80,81,150,0, 134,300,4000;
> >
> > etc...
> >
> > const blokk house[] ={ & ship1,
> > & ship2,
> > & ship3,
> > & ship4,
> > & ship5,
> > & ship6,
> > & ship7,
> > & ship8
> > };
> >
> > --
> > http://www.piclist.com hint: PICList Posts must start with ONE topic:
> > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
> >
> >
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads