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-rw-r--r--libguile/hash.c222
1 files changed, 0 insertions, 222 deletions
diff --git a/libguile/hash.c b/libguile/hash.c
deleted file mode 100644
index 3ea9f866a..000000000
--- a/libguile/hash.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * If you write modifications of your own for GUILE, it is your choice
- * whether to permit this exception to apply to your modifications.
- * If you do not wish that, delete this exception notice.
- */
-
-
-#include <stdio.h>
-#include "_scm.h"
-#include "chars.h"
-
-#include "hash.h"
-
-
-#ifndef floor
-extern double floor();
-#endif
-
-
-unsigned long
-scm_hasher(obj, n, d)
- SCM obj;
- unsigned long n;
- scm_sizet d;
-{
- switch (7 & (int) obj) {
- case 2: case 6: /* SCM_INUMP(obj) */
- return SCM_INUM(obj) % n;
- case 4:
- if SCM_ICHRP(obj)
- return (unsigned)(scm_downcase(SCM_ICHR(obj))) % n;
- switch ((int) obj) {
-#ifndef SICP
- case (int) SCM_EOL: d = 256; break;
-#endif
- case (int) SCM_BOOL_T: d = 257; break;
- case (int) SCM_BOOL_F: d = 258; break;
- case (int) SCM_EOF_VAL: d = 259; break;
- default: d = 263; /* perhaps should be error */
- }
- return d % n;
- default: return 263 % n; /* perhaps should be error */
- case 0:
- switch SCM_TYP7(obj) {
- default: return 263 % n;
- case scm_tc7_smob:
- switch SCM_TYP16(obj) {
- case scm_tcs_bignums:
- bighash: return SCM_INUM(scm_modulo(obj, SCM_MAKINUM(n)));
- default: return 263 % n;
-#ifdef SCM_FLOATS
- case scm_tc16_flo:
- if SCM_REALP(obj) {
- double r = SCM_REALPART(obj);
- if (floor(r)==r) {
- obj = scm_inexact_to_exact (obj);
- if SCM_IMP(obj) return SCM_INUM(obj) % n;
- goto bighash;
- }
- }
- obj = scm_number_to_string(obj, SCM_MAKINUM(10));
-#endif
- }
- case scm_tcs_symbols:
- case scm_tc7_string:
- case scm_tc7_mb_string:
- case scm_tc7_substring:
- case scm_tc7_mb_substring:
- return scm_strhash(SCM_ROUCHARS(obj), (scm_sizet) SCM_ROLENGTH(obj), n);
- case scm_tc7_wvect:
- case scm_tc7_vector:
- {
- scm_sizet len = SCM_LENGTH(obj);
- SCM *data = SCM_VELTS(obj);
- if (len>5)
- {
- scm_sizet i = d/2;
- unsigned long h = 1;
- while (i--) h = ((h<<8) + (scm_hasher(data[h % len], n, 2))) % n;
- return h;
- }
- else
- {
- scm_sizet i = len;
- unsigned long h = (n)-1;
- while (i--) h = ((h<<8) + (scm_hasher(data[i], n, d/len))) % n;
- return h;
- }
- }
- case scm_tcs_cons_imcar: case scm_tcs_cons_nimcar:
- if (d) return (scm_hasher(SCM_CAR(obj), n, d/2)+scm_hasher(SCM_CDR(obj), n, d/2)) % n;
- else return 1;
- case scm_tc7_port:
- return ((SCM_RDNG & SCM_CAR(obj)) ? 260 : 261) % n;
- case scm_tcs_closures: case scm_tc7_contin: case scm_tcs_subrs:
- return 262 % n;
- }
- }
-}
-
-
-
-
-
-unsigned int
-scm_ihashq (obj, n)
- SCM obj;
- unsigned int n;
-{
- return (((unsigned int) obj) >> 1) % n;
-}
-
-
-SCM_PROC(s_hashq, "hashq", 2, 0, 0, scm_hashq);
-
-SCM
-scm_hashq(obj, n)
- SCM obj;
- SCM n;
-{
- SCM_ASSERT(SCM_INUMP(n) && 0 <= n, n, SCM_ARG2, s_hashq);
- return SCM_MAKINUM(scm_ihashq (obj, SCM_INUM (n)));
-}
-
-
-
-
-
-unsigned int
-scm_ihashv (obj, n)
- SCM obj;
- unsigned int n;
-{
- if (SCM_ICHRP(obj))
- return ((unsigned int)(scm_downcase(SCM_ICHR(obj)))) % n; /* downcase!?!! */
-
- if (SCM_NIMP(obj) && SCM_NUMP(obj))
- return (unsigned int) scm_hasher(obj, n, 10);
- else
- return ((unsigned int)obj) % n;
-}
-
-
-SCM_PROC(s_hashv, "hashv", 2, 0, 0, scm_hashv);
-
-SCM
-scm_hashv(obj, n)
- SCM obj;
- SCM n;
-{
- SCM_ASSERT(SCM_INUMP(n) && 0 <= n, n, SCM_ARG2, s_hashv);
- return SCM_MAKINUM(scm_ihashv (obj, SCM_INUM (n)));
-}
-
-
-
-
-
-unsigned int
-scm_ihash (obj, n)
- SCM obj;
- unsigned int n;
-{
- return (unsigned int)scm_hasher (obj, n, 10);
-}
-
-SCM_PROC(s_hash, "hash", 2, 0, 0, scm_hash);
-
-SCM
-scm_hash(obj, n)
- SCM obj;
- SCM n;
-{
- SCM_ASSERT(SCM_INUMP(n) && 0 <= n, n, SCM_ARG2, s_hash);
- return SCM_MAKINUM(scm_ihash(obj, SCM_INUM(n)));
-}
-
-
-
-
-
-void
-scm_init_hash ()
-{
-#include "hash.x"
-}
-