proplib/prop_expand.c

   1 #include <err.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <prop/proplib.h>
   5
   6 #define NUM_STRINGS 50
   7
   8 int
   9 main(void)
  10 {
  11     prop_array_t pa;
  12     prop_string_t ps;
  13     int i;
  14
  15     /*
  16      * Create array object with initial capacity 10
  17      * Note that the array will expand on demand
  18      * by the prop_array_add() with `EXPAND_STEP' step
  19      * as defined in libprop/prop_array.c
  20      */
  21     pa = prop_array_create_with_capacity(10);
  22     if (pa == NULL)
  23         errx(EXIT_FAILURE, "prop_array_create_with_capacity()");
  24
  25     /*
  26      * Add up to `NUM_STRINGS' prop_string_t objects
  27      * and watch how the array expands on demand
  28      */
  29     for (i = 0; i < NUM_STRINGS; i++) {
  30         /* Print statistics */
  31         printf("count = %u\tcapacity = %u\n",
  32                prop_array_count(pa),
  33                prop_array_capacity(pa));
  34
  35         /* Create prop_string_t object */
  36         ps = prop_string_create_cstring_nocopy("test");
  37         if (ps == NULL) {
  38             prop_object_release(pa);
  39             errx(EXIT_FAILURE, "prop_string_create_cstring_nocopy()");
  40         }
  41
  42         /* Add object in array */
  43         if (prop_array_add(pa, ps) == FALSE) {
  44             prop_object_release(ps);
  45             prop_object_release(pa);
  46             errx(EXIT_FAILURE, "prop_array_add()");
  47         }
  48
  49         prop_object_release(ps);
  50     }
  51
  52     /* Release array object */
  53     prop_object_release(pa);
  54
  55     return EXIT_SUCCESS;
  56 }