Using a structure containing a pointer

Log in or register to post comments
Go To Last Post
5 posts / 0 new
Author
Message
sgomes
sgomes's picture
Level: Resident
Joined: Wed. Feb 19, 2003
Posts: 919 View posts
#1
Posted by sgomes: Sun. Jan 1, 2006 - 11:44 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I know this is a super basic question but I've googled and searched here to no avail.

I have a structure for example:

struct name {
char var1;
char var2;
char *var3;
} struct1

I want to use the pointer *var3 something like this:

struct1.*var3++ = x;

In other words I want to store the value 'x' at the address pointed to by struct1.var3 and then point to the next address.

My above syntax is incorrect. Can anyone help?

I'm not actually using GCC. I'm using CodeVision but since there is no CV forum on here I thought I'd ask here and see if I can translate to CV speak.

Shannon

Go electric!
Happy electric car owner / builder

Tags:

Tools, Compilers and General Programming
Top
Koshchi
Koshchi's picture
Level: 10k+ Postman
Joined: Wed. Nov 17, 2004
Posts: 15658 View posts
Location: Vancouver, BC
Posted by Koshchi: Sun. Jan 1, 2006 - 11:51 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

It should be

*(struct1.var3)++ = x;

I have to think about whether the parens are necessary, I was up way too late last night and my mind isn't back to full working order yet!

P.S. This is basic C so it works in any C compiler.

Regards,
Steve A.

The Board helps those that help themselves.

Top
brberie
brberie's picture
Level: Resident
Joined: Fri. Sep 12, 2003
Posts: 522 View posts
Location: XX century
Posted by brberie: Mon. Jan 2, 2006 - 12:05 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0
typedef struct  {
  char var1;
  char var2;
  char *var3;
} name_s;

*struct1.var3++ = x;
Top
Bronze Marktheusch
theusch's picture
Level: 10k+ Postman
Joined: Mon. Feb 19, 2001
Posts: 40585 View posts
Location: Wisconsin USA
Posted by theusch: Mon. Jan 2, 2006 - 12:41 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Quote:

I'm using CodeVision but since there is no CV forum on here I thought I'd ask here and see if I can translate to CV speak.

Why not try on the "official" CodeVision list:
http://groups.yahoo.com/group/co...

Lee

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

Top
sgomes
sgomes's picture
Level: Resident
Joined: Wed. Feb 19, 2003
Posts: 919 View posts
Posted by sgomes: Mon. Jan 2, 2006 - 02:25 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

...because I didn't know about it! Thanks Lee

And thank you others. Think I've got it now.

Go electric!
Happy electric car owner / builder

Top