blob: ee524fa43de08cea70179aeeb0c4a8fc964fa2a5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
* memory.c
*
* Created on: 2010-11-17
* Author: bernard
*/
#include <stdio.h>
#include <stdlib.h>
#include <finsh.h>
#include <errno.h>
static int errors = 0;
static void merror(const char *msg)
{
++errors;
printf("Error: %s\n", msg);
}
int libc_mem(void)
{
void *p;
int save;
errno = 0;
p = malloc(-1);
save = errno;
if (p != NULL)
merror("malloc (-1) succeeded.");
if (p == NULL && save != ENOMEM)
merror("errno is not set correctly");
p = malloc(10);
if (p == NULL)
merror("malloc (10) failed.");
/* realloc (p, 0) == free (p). */
p = realloc(p, 0);
if (p != NULL)
merror("realloc (p, 0) failed.");
p = malloc(0);
if (p == NULL)
{
printf("malloc(0) returns NULL\n");
}
p = realloc(p, 0);
if (p != NULL)
merror("realloc (p, 0) failed.");
return errors != 0;
}
FINSH_FUNCTION_EXPORT(libc_mem, memory test for libc);
|
