From:	Nate Eldredge <neldredge AT hmc DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: How do I access elements of a structure with pointers?
Date:	Mon, 11 Oct 1999 16:11:37 -0700
Organization:	Harvey Mudd College
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Nicholas Parker wrote:
> 
> This seems a fundamental part of C, but alas I don't know how to do this,
> arbitrary code follows;
> ----------------------------------------
> typedef struct {
> float re;
> float im;
> } complex;
> 
> void main(void){
> complex nick[4];
> complex *parker;
> parker=&nick[0];
> 
> *parker.re=3;   // This line wrong
> }
> --------------------------------------------
> 
> How do I access elements of nick with a pointer is
> how do I set parker.re (that is;  nick[0].re ?)

The . operator has a higher precedence than *, so you must parenthesize.

(*parker).re=3;

As an alternative (and much more commonly used) syntax, C provides the
-> operator.  The above is equivalent to

parker->re=3.
-- 

Nate Eldredge
neldredge AT hmc DOT edu

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