allocating inner struct array

[Serve Laurijssen]

Given this structure:

typedef struct S
{
struct Inner {
char desc[128];
char *file[MAX_PATH+1];
} *libs;
} S;

The Inner struct has a description string and an array of file strings. I
know the the max length of each file upfront, but not how many files go in
there. As you can see file is now declared as an array of MAX_PATH+1 char
pointers, but I want a dynamic array of static char array. (pfff)
How do I declare and assign to that?

[Bertrand Mollinier Toublet]

Serve Laurijssen wrote:

Given this structure:

typedef struct S
{
struct Inner {
char desc[128];
char *file[MAX_PATH+1];
} *libs;
} S;

The Inner struct has a description string and an array of file strings. I
know the the max length of each file upfront, but not how many files go in
there. As you can see file is now declared as an array of MAX_PATH+1 char
pointers, but I want a dynamic array of static char array. (pfff)
How do I declare and assign to that?

As far as declaration, what about

char (*file)[MAX_PATH + 1];

When you find out how many strings you are going to want to store, you
can use:

file = malloc(sizeof *file); /* easy enough */

and to copy your data, presumably stored filename:

char *filename;

/* fill filename out by whatever means */

strcpy(file[2], filename);

Voila !

--
Bertrand Mollinier Toublet
Currently looking for employment in the San Francisco Bay Area
http://www.bmt.dnsalias.org/employment

[Serve Laurijssen]

"Bertrand Mollinier Toublet" <be************ ***********@ens t-bretagne.fr>
wrote in message news:bf******** ****@ID-168218.news.uni-berlin.de...

As far as declaration, what about

char (*file)[MAX_PATH + 1];

Ok, that wasn't so bad. I actually thought of this before, but in my mind I
translated it into "a pointer to a MAX_PATH+1 array" and I thought that was
wrong.

[Dan Pop]

In <bf**********@n ews3.tilbu1.nb. home.nl> "Serve Laurijssen" <[e-mail]> writes:

"Bertrand Mollinier Toublet" <be************ ***********@ens t-bretagne.fr>
wrote in message news:bf******** ****@ID-168218.news.uni-berlin.de...

As far as declaration, what about

char (*file)[MAX_PATH + 1];

Ok, that wasn't so bad. I actually thought of this before, but in my mind I
translated it into "a pointer to a MAX_PATH+1 array" and I thought that was
wrong.

Well, this is exactly what it is: a pointer to an array of MAX_PATH + 1
char.

Dan
--
Dan Pop
DESY Zeuthen, RZ group
Email: Da*****@ifh.de