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* string/tester.c (test_memcmp): Add a few more tests.

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Patch by Mats Erik Andersson <ynglingatal@comhem.se>.
This commit is contained in:
Ulrich Drepper 2008-05-11 08:55:42 +00:00
parent cdffaaa615
commit 3490f01de4
2 changed files with 31 additions and 8 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2008-05-11 Ulrich Drepper <drepper@redhat.com>
* string/tester.c (test_memcmp): Add a few more tests.
Patch by Mats Erik Andersson <ynglingatal@comhem.se>.
2008-05-10 Ulrich Drepper <drepper@redhat.com>
* nscd/cache.c (cache_add): Before returning with failure and this

34
string/tester.c
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@ -985,15 +985,33 @@ test_strsep (void)
static void
test_memcmp (void)
{
int cnt = 1;
char one[21];
char two[21];
it = "memcmp";
check(memcmp("a", "a", 1) == 0, 1); /* Identity. */
check(memcmp("abc", "abc", 3) == 0, 2); /* Multicharacter. */
check(memcmp("abcd", "abce", 4) < 0, 3); /* Honestly unequal. */
check(memcmp("abce", "abcd", 4) > 0, 4);
check(memcmp("alph", "beta", 4) < 0, 5);
check(memcmp("a\203", "a\003", 2) > 0, 6);
check(memcmp("abce", "abcd", 3) == 0, 7); /* Count limited. */
check(memcmp("abc", "def", 0) == 0, 8); /* Zero count. */
check(memcmp("a", "a", 1) == 0, cnt++); /* Identity. */
check(memcmp("abc", "abc", 3) == 0, cnt++); /* Multicharacter. */
check(memcmp("abcd", "abcf", 4) < 0, cnt++); /* Honestly unequal. */
check(memcmp("abcf", "abcd", 4) > 0, cnt++);
check(memcmp("alph", "cold", 4) < 0, cnt++);
check(memcmp("a\203", "a\003", 2) > 0, cnt++);
check(memcmp("a\003", "a\203", 2) < 0, cnt++);
check(memcmp("a\003bc", "a\203bc", 2) < 0, cnt++);
check(memcmp("abc\203", "abc\003", 4) > 0, cnt++);
check(memcmp("abc\003", "abc\203", 4) < 0, cnt++);
check(memcmp("abcf", "abcd", 3) == 0, cnt++); /* Count limited. */
check(memcmp("abc", "def", 0) == 0, cnt++); /* Zero count. */
/* Comparisons with shifting 4-byte boundaries. */
for (int i = 0; i < 4; ++i)
{
char *a = one + i;
char *b = two + i;
strncpy(a, "--------11112222", 16);
strncpy(b, "--------33334444", 16);
check(memcmp(b, a, 16) > 0, cnt++);
check(memcmp(a, b, 16) < 0, cnt++);
}
}
static void