885f2199f3
include/
2005-03-27 Gabriel Dos Reis <gdr@integrable-solutions.net>
* partition.h: Remove use of PARAMS.
* obstack.h: Remove conditional prototypes __STDC__.
* objalloc.h: Remove use of PARAMS.
* splay-tree.h: Likewise.
libiberty/
2005-03-27 Gabriel Dos Reis <gdr@integrable-solutions.net>
Convert libiberty to use ISO C prototype style 5/n.
* random.c (srandom, initstate, setstate, random): Use ISO C
prototypes.
* putenv.c (putenv): Likewise.
* physmem.c (physmem_available, physmem_total, main):
Likewise.
* pex-win32.c (fix_argv, pexecute, pwait): Likewise.
* pex-unix.c (pexecute, pwait): Likewise.
* pex-msdos.c (pexecute, pwait): Likewise.
* pex-djgpp.c (pexecute, pwait): Likewise.
* partition.c (partition_new, partition_delete,
partition_union)
(elem_compare, partition_print): Likewise.
* obstack.c (_obstack_begin, _obstack_begin_1,
_obstack_newchunk,
_obstack_allocated_p, _obstack_free, obstack_free,
_obstack_memory_used, print_and_abort, obstack_next_free,
obstack_object_size, obstack_base): Likewise. Remove codes
predicated on !defined(__STDC__).
* objalloc.c (objalloc_create, _objalloc_alloc, objalloc_free,
objalloc_free_block): Use ISO C prototypes.
* mkstemps.c (mkstemps): Likewise.
* memset.c (memset): Likewise.
* mempcpy.c (mempcpy): Likewise.
* rename.c (rename): Likewise.
* rindex.c (rindex): Likewise.
* setenv.c (setenv, unsetenv): Likewise.
* sigsetmask.c (sigsetmask): Likewise.
* snprintf.c (snprintf): Likewise.
* sort.c (sort_pointers, xmalloc): Likewise.
* spaces.c (spaces): Likewise.
* splay-tree.c (splay_tree_delete_helper,
splay_tree_splay_helper, splay_tree_splay,
splay_tree_foreach_helper, splay_tree_xmalloc_allocate,
splay_tree_new, splay_tree_xmalloc_allocate,
splay_tree_new_with_allocator, splay_tree_delete,
splay_tree_insert, splay_tree_remove, splay_tree_lookup,
splay_tree_max, splay_tree_min, splay_tree_predecessor,
splay_tree_successor, splay_tree_foreach,
splay_tree_compare_ints, splay_tree_compare_pointers):
Likewise.
* stpcpy.c (stpcpy): Likewise.
* stpncpy.c (stpncpy): Likewise.
* strcasecmp.c (strcasecmp): Likewise.
* strchr.c (strchr): Likewise.
* strdup.c (strdup): Likewise.
From-SVN: r97125
83 lines
2.8 KiB
C
83 lines
2.8 KiB
C
/* List implementation of a partition of consecutive integers.
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Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
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Contributed by CodeSourcery, LLC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This package implements a partition of consecutive integers. The
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elements are partitioned into classes. Each class is represented
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by one of its elements, the canonical element, which is chosen
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arbitrarily from elements in the class. The principal operations
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on a partition are FIND, which takes an element, determines its
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class, and returns the canonical element for that class, and UNION,
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which unites the two classes that contain two given elements into a
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single class.
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The list implementation used here provides constant-time finds. By
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storing the size of each class with the class's canonical element,
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it is able to perform unions over all the classes in the partition
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in O (N log N) time. */
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#ifndef _PARTITION_H
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#define _PARTITION_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include "ansidecl.h"
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#include <stdio.h>
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struct partition_elem
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{
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/* The canonical element that represents the class containing this
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element. */
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int class_element;
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/* The next element in this class. Elements in each class form a
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circular list. */
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struct partition_elem* next;
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/* The number of elements in this class. Valid only if this is the
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canonical element for its class. */
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unsigned class_count;
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};
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typedef struct partition_def
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{
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/* The number of elements in this partition. */
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int num_elements;
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/* The elements in the partition. */
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struct partition_elem elements[1];
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} *partition;
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extern partition partition_new (int);
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extern void partition_delete (partition);
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extern int partition_union (partition, int, int);
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extern void partition_print (partition, FILE*);
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/* Returns the canonical element corresponding to the class containing
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ELEMENT__ in PARTITION__. */
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#define partition_find(partition__, element__) \
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((partition__)->elements[(element__)].class_element)
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* _PARTITION_H */
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