AVR-Chat

Oh yeah.  I remember the pain of figuring when to use the > vs . 
operators.  pointer references or whatever.  OUCH!!!  Well, I will 
go through it again.

2 reasons.  The structure needed for the initializer variables, then 
the data log which is a PERFECT structure application.

so as I remember it will be struct_name>item, but log-array[x].item.

or maybe I have it backward.  I have to check.  Once you get it down 
it is nice and easy.  Confusing otherwise.  

-Tony

--- In AVR-Chat@yahoogroups.com, Robert Adsett <subscriptions@a...> 
wrote:
> At 07:16 PM 4/25/05 +0000, arhodes19044 wrote:
> >It has been a long time since I worked with structures.  Is there 
a
> >way to get the offset of the element within the structure?
> >Something like "&structure.element".  This way, I can start with 
the
> >location of the structure in SRAM or in EEPROM and then access the
> >individual element by base + offset.  Will sizeof() work with
> >structure elements?
> 
> Look for the standard macro offsetof().  And yes sizeof works with 
> structure elements, although depending on the compiler and micro 
adding up 
> the sizes of the previous elements will not necessarily give the 
same 
> answer as offsetof (I expect it would on an AVR).
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always 
restrictions,   be 
> they legal, genetic, or physical.  If you don't believe me, try to 
chew a 
> radio signal. "  -- Kelvin Throop, III
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