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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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10
ChangeLog
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@ -1,3 +1,8 @@
Sun Mar 17 07:19:33 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* db/Makefile (CFLAGS-hash_func.c): New variable; pass -Wno-unused.
(CFLAGS): Append -Wno-unitialized.
Sat Mar 16 20:58:43 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu> Sat Mar 16 20:58:43 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
* stdlib/erand48_r.c: Use FP division by powers of two to distribute * stdlib/erand48_r.c: Use FP division by powers of two to distribute
@ -5,8 +10,9 @@ Sat Mar 16 20:58:43 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>
Sat Mar 16 20:08:22 1996 David Mosberger-Tang <davidm@azstarnet.com> Sat Mar 16 20:08:22 1996 David Mosberger-Tang <davidm@azstarnet.com>
* sysdeps/alpha/memchr.S: new file. * sysdeps/alpha/memchr.S: New file.
* sysdeps/alpha/memchr.c: obsolete file removed. * sysdeps/alpha/memchr.c: Obsolete file removed.
* string/tester.c: Soup up memchr tests.
Sat Mar 16 16:26:09 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu> Sat Mar 16 16:26:09 1996 Roland McGrath <roland@charlie-brown.gnu.ai.mit.edu>

7
db/Makefile
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@ -26,3 +26,10 @@ distribute := compat.h \
include ../Rules include ../Rules
CPPFLAGS += -D__DBINTERFACE_PRIVATE CPPFLAGS += -D__DBINTERFACE_PRIVATE
# This file defines some static functions for alternative hash algorithms
# that are not actually used.
CFLAGS-hash_func.c := -Wno-unused
# The db code outsmarts the compiler frequently.
override CFLAGS += -Wno-uninitialized

25
string/tester.c
View File

@ -375,6 +375,7 @@ DEFUN(main, (argc, argv), int argc AND char **argv)
check(memchr("abcd", 'z', 4) == NULL, 1); /* Not found. */ check(memchr("abcd", 'z', 4) == NULL, 1); /* Not found. */
(void) strcpy(one, "abcd"); (void) strcpy(one, "abcd");
check(memchr(one, 'c', 4) == one+2, 2); /* Basic test. */ 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, 'd', 4) == one+3, 3); /* End of string. */
check(memchr(one, 'a', 4) == one, 4); /* Beginning. */ check(memchr(one, 'a', 4) == one, 4); /* Beginning. */
check(memchr(one, '\0', 5) == one+4, 5); /* Finding NUL. */ 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"); (void) strcpy(one, "a\203b");
check(memchr(one, 0203, 3) == one+1, 9); /* Unsignedness. */ 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. */ /* memcpy - need not work for overlap. */
it = "memcpy"; it = "memcpy";
check(memcpy(one, "abc", 4) == one, 1); /* Returned value. */ check(memcpy(one, "abc", 4) == one, 1); /* Returned value. */