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From: "John Hanley" <jdhanley AT telusplanet DOT net>
Newsgroups: comp.os.msdos.djgpp
Subject: pointers to structs
Date: Wed, 14 Jul 2004 16:03:09 -0600
Organization: University of Alberta
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

I am creating a linked list.  I have 2 structs:

struct data_record
{
    struct data_record * next;
};

struct data_list
{
    struct data_record * head;
    struct data_record * tail;
};

int main()
{
    struct data_list * list;

    list->head = NULL;
    list->tail = NULL;
}

When I compile then run this, I get:  "Exiting due to Signal SIGSEGV.  Page
Fault at ..."

Can I not assign NULL to these pointers?  If I take the 2 assignments out,
it runs ok.

Any suggestions as to why I can't initialize my head and tail to NULL?

Thanks!

John