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author | Thomas Fitzsimmons <fitzsim@redhat.com> | 2002-06-20 19:51:40 +0000 |
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committer | Thomas Fitzsimmons <fitzsim@redhat.com> | 2002-06-20 19:51:40 +0000 |
commit | a7b23a8f11b2e1f2ef333d2ed95d1c972acad12f (patch) | |
tree | 26eb76cc430a851b89de107870b4f6b177311072 /newlib/libc/search/hash_log2.c | |
parent | c25ebbaf55dbef934d85522616d898eef37438e4 (diff) | |
download | cygnal-a7b23a8f11b2e1f2ef333d2ed95d1c972acad12f.tar.gz cygnal-a7b23a8f11b2e1f2ef333d2ed95d1c972acad12f.tar.bz2 cygnal-a7b23a8f11b2e1f2ef333d2ed95d1c972acad12f.zip |
* Makefile.am (LIB_OBJECTLISTS): Add
libc/search/objectlist.awk.in.
* libc/Makefile.am (SUBDIRS): Add search.
(SUBLIBS): Add search/libsearch.la.
* libc/configure.in (AC_OUTPUT): Add search/Makefile.
* libc/search: New directory.
* libc/search/Makefile.am: New file.
* libc/search/extern.h: New file.
* libc/search/hash.c: New file.
* libc/search/hash.h: New file.
* libc/search/hash_bigkey.c: New file.
* libc/search/hash_buf.c: New file.
* libc/search/hash_func.c: New file.
* libc/search/hash_log2.c: New file.
* libc/search/hash_page.c: New file.
* libc/search/hcreate.3: New file.
* libc/search/hcreate.c: New file.
* libc/search/hcreate.c~: New file.
* libc/search/hcreate_r.c: New file.
* libc/search/ndbm.c: New file.
* libc/search/page.h: New file.
* libc/search/tdelete.c: New file.
* libc/search/tdestroy.c: New file.
* libc/search/tfind.c: New file.
* libc/search/tsearch.3: New file.
* libc/search/tsearch.c: New file.
* libc/search/twalk.c: New file.
* libc/include/db.h: New file.
* libc/include/ndbm.h: New file.
* libc/include/search.h: New file.
* libc/include/sys/queue.h: New file.
* libc/include/sys/cdefs.h: New file.
* libc/include/sys/param.h
[__IEEE_LITTLE_ENDIAN,__IEEE_BIG_ENDIAN]: Set BYTE_ORDER to
LITTLE_ENDIAN or BIG_ENDIAN.
* libc/include/sys/errno.h (EFTYPE): New macro.
* libc/search/bsearch.c: Move from libc/stdlib.
* libc/search/qsort.c: Likewise.
* libc/stdlib/Makefile.am (LIB_SOURCES): Remove bsearch.c and
qsort.c.
(CHEWOUT_FILES): Remove bsearch.def and qsort.def.
* libc/stdlib/stdlib.tex: Remove references to bsearch and qsort.
Diffstat (limited to 'newlib/libc/search/hash_log2.c')
-rw-r--r-- | newlib/libc/search/hash_log2.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/newlib/libc/search/hash_log2.c b/newlib/libc/search/hash_log2.c new file mode 100644 index 000000000..bbcddb0c7 --- /dev/null +++ b/newlib/libc/search/hash_log2.c @@ -0,0 +1,55 @@ +/*- + * Copyright (c) 1990, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Margo Seltzer. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#if defined(LIBC_SCCS) && !defined(lint) +static char sccsid[] = "@(#)hash_log2.c 8.2 (Berkeley) 5/31/94"; +#endif /* LIBC_SCCS and not lint */ +#include <sys/cdefs.h> + +#include <sys/types.h> + +#include <db.h> + +__uint32_t +__log2(num) + __uint32_t num; +{ + __uint32_t i, limit; + + limit = 1; + for (i = 0; limit < num; limit = limit << 1, i++); + return (i); +} |