memory allocation

[jimmiy]

Hi all"

I have a quick question for you:

I have something like the following:

typedef struct recordinfo
{
   int ind;
   char *str;
} recordinfo1;

and somewhere in the code i do the following:

users   = (struct recordinfo *) malloc ( sizeof(struct recordinfo) * 2000 );

after running the one cycle in a loop, I would like to free the memory that I allocated.

I do the following:

free ((recordinfo *) users );

but that doesn't free everything because inside recordinfo another pointer (char *str).

do you know how to free all the memory allocated for this array?


Thanks

Jimmiy

[redhead]

free ((recordinfo *) users );

This is just freeing the users pointer allocated memory, you need to cyckle through your users in order to free all the memory occupied by it ie:

for (i=0; i < 2000; ++i)
    free  (users[i].str);
free(users);

Since the str would be allocated elsewhere, the users pointer allocation has no knowledge of what size is actualy stored in the allocated memory for the str member of the struct, thus it needs to explecitly be free'd.