mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-27 04:41:02 +08:00
f9b7a98b18
2006-06-14 Jakub Jelinek <jakub@redhat.com> [BZ #2766] * misc/insremque.c (insque): Handle prev == NULL. * misc/Makefile (tests): Add tst-insremque. * misc/tst-insremque.c: New test.
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
#include <search.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#define CHECK(cond) \
|
|
do \
|
|
if (! (cond)) \
|
|
{ \
|
|
printf ("Condition " #cond " not true on line %d\n", __LINE__); \
|
|
ret = 1; \
|
|
} \
|
|
while (0)
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
struct qelem elements[4];
|
|
int ret = 0;
|
|
|
|
/* Linear list. */
|
|
memset (elements, 0xff, sizeof (elements));
|
|
insque (&elements[0], NULL);
|
|
remque (&elements[0]);
|
|
insque (&elements[0], NULL);
|
|
insque (&elements[2], &elements[0]);
|
|
insque (&elements[1], &elements[0]);
|
|
insque (&elements[3], &elements[2]);
|
|
remque (&elements[2]);
|
|
insque (&elements[2], &elements[0]);
|
|
CHECK (elements[0].q_back == NULL);
|
|
CHECK (elements[0].q_forw == &elements[2]);
|
|
CHECK (elements[1].q_back == &elements[2]);
|
|
CHECK (elements[1].q_forw == &elements[3]);
|
|
CHECK (elements[2].q_back == &elements[0]);
|
|
CHECK (elements[2].q_forw == &elements[1]);
|
|
CHECK (elements[3].q_back == &elements[1]);
|
|
CHECK (elements[3].q_forw == NULL);
|
|
|
|
/* Circular list. */
|
|
memset (elements, 0xff, sizeof (elements));
|
|
elements[0].q_back = &elements[0];
|
|
elements[0].q_forw = &elements[0];
|
|
insque (&elements[2], &elements[0]);
|
|
insque (&elements[1], &elements[0]);
|
|
insque (&elements[3], &elements[2]);
|
|
remque (&elements[2]);
|
|
insque (&elements[2], &elements[0]);
|
|
CHECK (elements[0].q_back == &elements[3]);
|
|
CHECK (elements[0].q_forw == &elements[2]);
|
|
CHECK (elements[1].q_back == &elements[2]);
|
|
CHECK (elements[1].q_forw == &elements[3]);
|
|
CHECK (elements[2].q_back == &elements[0]);
|
|
CHECK (elements[2].q_forw == &elements[1]);
|
|
CHECK (elements[3].q_back == &elements[1]);
|
|
CHECK (elements[3].q_forw == &elements[0]);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define TEST_FUNCTION do_test ()
|
|
#include "../test-skeleton.c"
|