+# Makefile for the libiberty library.
+# Originally written by K. Richard Pixley <rich@cygnus.com>.
#
-# Makefile
-# Copyright (C) 1990, 91-99, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
-# Free Software Foundation
+# Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+# 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software
+# Foundation
#
# This file is part of the libiberty library.
# Libiberty is free software; you can redistribute it and/or
# License along with libiberty; see the file COPYING.LIB. If not,
# write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
# Boston, MA 02110-1301, USA.
-#
-
-# This file was written by K. Richard Pixley <rich@cygnus.com>.
-
-#
-# Makefile for libiberty directory
-#
libiberty_topdir = @libiberty_topdir@
srcdir = @srcdir@
splay-tree.c stpcpy.c stpncpy.c strcasecmp.c strchr.c strdup.c \
strerror.c strncasecmp.c strncmp.c strrchr.c strsignal.c \
strstr.c strtod.c strtol.c strtoul.c strndup.c strverscmp.c \
- ternary.c tmpnam.c \
+ tmpnam.c \
unlink-if-ordinary.c \
vasprintf.c vfork.c vfprintf.c vprintf.c vsnprintf.c vsprintf.c \
waitpid.c \
./pex-common.o ./pex-one.o @pexecute@ \
./safe-ctype.o ./sort.o ./spaces.o ./splay-tree.o ./strerror.o \
./strsignal.o \
- ./ternary.o \
./unlink-if-ordinary.o \
./xatexit.o ./xexit.o ./xmalloc.o ./xmemdup.o ./xstrdup.o \
./xstrerror.o ./xstrndup.o
$(INCDIR)/partition.h \
$(INCDIR)/safe-ctype.h \
$(INCDIR)/sort.h \
- $(INCDIR)/splay-tree.h \
- $(INCDIR)/ternary.h
+ $(INCDIR)/splay-tree.h
$(TARGETLIB): $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS)
-rm -f $(TARGETLIB) pic/$(TARGETLIB)
else true; fi
$(COMPILE.c) $(srcdir)/strverscmp.c $(OUTPUT_OPTION)
-./ternary.o: $(srcdir)/ternary.c stamp-h $(INCDIR)/ansidecl.h \
- $(INCDIR)/libiberty.h $(INCDIR)/ternary.h
- if [ x"$(PICFLAG)" != x ]; then \
- $(COMPILE.c) $(PICFLAG) $(srcdir)/ternary.c -o pic/$@; \
- else true; fi
- $(COMPILE.c) $(srcdir)/ternary.c $(OUTPUT_OPTION)
-
./tmpnam.o: $(srcdir)/tmpnam.c
if [ x"$(PICFLAG)" != x ]; then \
$(COMPILE.c) $(PICFLAG) $(srcdir)/tmpnam.c -o pic/$@; \
+++ /dev/null
-/* ternary.c - Ternary Search Trees
- Copyright (C) 2001 Free Software Foundation, Inc.
-
- Contributed by Daniel Berlin (dan@cgsoftware.com)
-
- 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 program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
- USA. */
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-
-#include <stdio.h>
-
-#include "libiberty.h"
-#include "ternary.h"
-
-/* Non-recursive so we don't waste stack space/time on large
- insertions. */
-
-PTR
-ternary_insert (ternary_tree *root, const char *s, PTR data, int replace)
-{
- int diff;
- ternary_tree curr, *pcurr;
-
- /* Start at the root. */
- pcurr = root;
- /* Loop until we find the right position */
- while ((curr = *pcurr))
- {
- /* Calculate the difference */
- diff = *s - curr->splitchar;
- /* Handle current char equal to node splitchar */
- if (diff == 0)
- {
- /* Handle the case of a string we already have */
- if (*s++ == 0)
- {
- if (replace)
- curr->eqkid = (ternary_tree) data;
- return (PTR) curr->eqkid;
- }
- pcurr = &(curr->eqkid);
- }
- /* Handle current char less than node splitchar */
- else if (diff < 0)
- {
- pcurr = &(curr->lokid);
- }
- /* Handle current char greater than node splitchar */
- else
- {
- pcurr = &(curr->hikid);
- }
- }
- /* It's not a duplicate string, and we should insert what's left of
- the string, into the tree rooted at curr */
- for (;;)
- {
- /* Allocate the memory for the node, and fill it in */
- *pcurr = XNEW (ternary_node);
- curr = *pcurr;
- curr->splitchar = *s;
- curr->lokid = curr->hikid = curr->eqkid = 0;
-
- /* Place nodes until we hit the end of the string.
- When we hit it, place the data in the right place, and
- return.
- */
- if (*s++ == 0)
- {
- curr->eqkid = (ternary_tree) data;
- return data;
- }
- pcurr = &(curr->eqkid);
- }
-}
-
-/* Free the ternary search tree rooted at p. */
-void
-ternary_cleanup (ternary_tree p)
-{
- if (p)
- {
- ternary_cleanup (p->lokid);
- if (p->splitchar)
- ternary_cleanup (p->eqkid);
- ternary_cleanup (p->hikid);
- free (p);
- }
-}
-
-/* Non-recursive find of a string in the ternary tree */
-PTR
-ternary_search (const ternary_node *p, const char *s)
-{
- const ternary_node *curr;
- int diff, spchar;
- spchar = *s;
- curr = p;
- /* Loop while we haven't hit a NULL node or returned */
- while (curr)
- {
- /* Calculate the difference */
- diff = spchar - curr->splitchar;
- /* Handle the equal case */
- if (diff == 0)
- {
- if (spchar == 0)
- return (PTR) curr->eqkid;
- spchar = *++s;
- curr = curr->eqkid;
- }
- /* Handle the less than case */
- else if (diff < 0)
- curr = curr->lokid;
- /* All that's left is greater than */
- else
- curr = curr->hikid;
- }
- return NULL;
-}
-
-/* For those who care, the recursive version of the search. Useful if
- you want a starting point for pmsearch or nearsearch. */
-static PTR
-ternary_recursivesearch (const ternary_node *p, const char *s)
-{
- if (!p)
- return 0;
- if (*s < p->splitchar)
- return ternary_recursivesearch (p->lokid, s);
- else if (*s > p->splitchar)
- return ternary_recursivesearch (p->hikid, s);
- else
- {
- if (*s == 0)
- return (PTR) p->eqkid;
- return ternary_recursivesearch (p->eqkid, ++s);
- }
-}
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