1#include <mcheck.h>
2#include <obstack.h>
3#include <stdio.h>
4#include <stdlib.h>
5
6
7static int
8do_test (void)
9{
10 struct obstack ob;
11 int n;
12
13 mcheck_pedantic (NULL);
14
15#define obstack_chunk_alloc malloc
16#define obstack_chunk_free free
17
18 obstack_init (&ob);
19
20 for (n = 0; n < 40000; ++n)
21 {
22 mcheck_check_all ();
23 obstack_printf (obstack: &ob, format: "%.*s%05d", 1 + n % 7, "foobarbaz", n);
24 if (n % 777 == 0)
25 obstack_finish (&ob);
26 }
27
28 /* Another loop where we finish all objects, each of size 1. This will
29 manage to call `obstack_print' with all possible positions inside
30 an obstack chunk. */
31 for (n = 0; n < 40000; ++n)
32 {
33 mcheck_check_all ();
34 obstack_printf (obstack: &ob, format: "%c", 'a' + n % 26);
35 obstack_finish (&ob);
36 }
37
38 /* And a final check. */
39 mcheck_check_all ();
40
41 return 0;
42}
43
44#define TEST_FUNCTION do_test ()
45#include "../test-skeleton.c"
46

source code of glibc/stdio-common/tst-obprintf.c