test/structassign.c

   1 # include <stdio.h>
   2 # include <strings.h>
   3 # include <stdlib.h>
   4 # include <assert.h>
   5
   6 typedef struct
   7 {
   8   int x;
   9   char *name;
  10 } record;
  11
  12 record copyrecord (record x)
  13 {
  14   record copy = x;
  15   return copy; /* 1. Released storage x.name reachable from parameter at ... */
  16 }
  17
  18 record copyrecord2 (record x)
  19 {
  20   record copy;
  21
  22   copy = x;
  23   return copy; /* 2. Released storage x.name reachable from parameter at ... */
  24 }
  25
  26 record copyrecord3 (record x)
  27 {
  28   return x; /* 3. Released storage x.name reachable from parameter at ... */
  29 }
  30
  31 int main ()
  32 {
  33   record r;
  34   record rc;
  35
  36   r.x = 3;
  37   r.name = (char *) malloc (sizeof (char) * 100);
  38   assert (r.name != NULL);
  39   strcpy (r.name, "yo");
  40
  41   rc = r;
  42
  43   printf ("rc: %s", rc.name);
  44
  45   return r.x; /* 4. Only storage rc.name (type char *) derived from variable ... */
  46 }