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From: eoo@let.rug.nl (Eize Oosting)
Newsgroups: comp.lang.c
Subject: Re: missing ->= operator
Message-ID: <1667@gufalet.let.rug.nl>
Date: 30 Apr 91 22:29:16 GMT
References: <9104291641.AA00534@dutiaa.tudelft.nl>
Organization: Faculty of Arts, Groningen, The Netherlands
Lines: 34

In article <9104291641.AA00534@dutiaa.tudelft.nl> schuller@DUTIAA.TUDELFT.NL (Schuller Schuller Oijen) writes:
>Hi all,
>recently I've been doing a lot of C pointer programming and I came upon
>a missing feature in C. Suppose you have this struct called mygod :
>	typedef struct mygod
>	{
>		int value;
>		struct mygod *next;
>	} mygod_struct
>What you do quite often is : mygodptr = mygodptr->next;
>Now C has all these wonderful operators : a += 7, g &= 0xf, etc, etc.
>But the ->= operator is missing! You cannot do mygodptr ->= next; !
>All of you who want to fill this gap, please react. Flames to /dev/null.
>Bye! Hildo Biersma, schuller@dutiad.tudelft.nl

It sounds wonderfull, but it would ask for an Object Oriented style, and
C is just not OO. Maybe this would be something for C++.

What you can do is something like this:

#define NEXT(ptr)  ptr = ptr->next

It isn't the nicest solution, but it works.

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|   Letteren-    |  Marvin Minsky once defined Artificial Intelligence as: |
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| eoo@let.rug.nl |                                           Eize Oosting  |
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