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Sun Mar 17 07:19:33 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>

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* db/Makefile (CFLAGS-hash_func.c): New variable; pass -Wno-unused.
	(CFLAGS): Append -Wno-unitialized.

	* sysdeps/alpha/memchr.S: New file.
	* sysdeps/alpha/memchr.c: Obsolete file removed.
	* string/tester.c: Soup up memchr tests.
This commit is contained in:
Roland McGrath
1996-03-17 12:36:52 +00:00
parent 5aab07eb56
commit 9b431e31e1
3 changed files with 40 additions and 2 deletions
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25
string/tester.c
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@ -375,6 +375,7 @@ DEFUN(main, (argc, argv), int argc AND char **argv)
check(memchr("abcd", 'z', 4) == NULL, 1); /* Not found. */
(void) strcpy(one, "abcd");
check(memchr(one, 'c', 4) == one+2, 2); /* Basic test. */
check(memchr(one, ~0xff|'c', 4) == one+2, 2); /* ignore highorder bits. */
check(memchr(one, 'd', 4) == one+3, 3); /* End of string. */
check(memchr(one, 'a', 4) == one, 4); /* Beginning. */
check(memchr(one, '\0', 5) == one+4, 5); /* Finding NUL. */
@ -385,6 +386,30 @@ DEFUN(main, (argc, argv), int argc AND char **argv)
(void) strcpy(one, "a\203b");
check(memchr(one, 0203, 3) == one+1, 9); /* Unsignedness. */
/* now test all possible alignment and length combinations to catch
bugs due to unrolled loops (assuming unrolling is limited to no
more than 128 byte chunks: */
{
char buf[128 + sizeof(long)];
long align, len, i, pos;
for (align = 0; align < sizeof(long); ++align) {
for (len = 0; len < sizeof(buf) - align; ++len) {
for (i = 0; i < len; ++i) {
buf[align + i] = 'x'; /* don't depend on memset... */
}
for (pos = 0; pos < len; ++pos) {
#if 0
printf("align %d, len %d, pos %d\n", align, len, pos);
#endif
check(memchr(buf + align, 'x', len) == buf + align + pos, 10);
check(memchr(buf + align, 'x', pos) == NULL, 11);
buf[align + pos] = '-';
}
}
}
}
/* memcpy - need not work for overlap. */
it = "memcpy";
check(memcpy(one, "abc", 4) == one, 1); /* Returned value. */