71f3e391b3
* system.h: Include "safe-ctype.h" instead of <safe-ctype.h>. Include <signal.h>, <sys/mman.h>, <sys/resource.h> and <sys/times.h>. (O_BINARY, SIGCHLD, MAP_FAILED, MAP_ANONYMOUS, kill): Conditionally define. (GET_ENVIRONMENT): Poison. * configure.ac: Don't test for mincore. * configure: Regenerate. * config.in: Regenerate. * collect2-aix.c: Don't include <sys/mman.h>. * collect2.c: Don't include <signal.h>. (SIGCHLD): Don't define. (prefix_from_env): Use getenv instead of GET_ENVIRONMENT. * config/alpha/alpha.c: Include "splay-tree.h" instead of <splay-tree.h>. * config/arm/arm.c (arm_target_help): Use getenv instead of GET_ENVIRONMENT. * config/avr/driver-avr.c: Don't include <stdlib.h>. * config/frv/frv.c: Don't include <ctype.h>. * config/host-darwin.c: Don't include <sys/mman.h>. * config/host-hpux.c: Don't include <sys/mman.h> or <unistd.h>. (MAP_FAILED): Don't define. * config/host-linux.c: Don't include <sys/mman.h> or <limits.h>. * config/host-solaris.c: Don't include <sys/mman.h>. * config/i386/cygming.h: Don't include <stdio.h>. * config/i386/driver-i386.c: Don't include <stdlib.h>. * config/i386/host-cygwin.c: Don't include <sys/mman.h>. * config/iq2000/iq2000.c: Don't include <signal.h>. * config/m32c/m32c-pragma.c: Don't include <stdio.h>. * config/m68hc11/m68hc11.c: Don't include <stdio.h>. * config/mep/mep-pragma.c: Don't include <stdio.h>. * config/microblaze/microblaze.c: Don't include <signal.h>. * config/mips/mips.c: Don't include <signal.h>. * config/rs6000/host-darwin.c: Don't include <signal.h>. * cppdefault.c (cpp_relocated): Use getenv instead of GET_ENVIRONMENT. * defaults.h (GET_ENVIRONMENT): Don't define. * et-forest.h: Don't include <ansidecl.h> or <stddef.h>. * gcc.c: Don't include <signal.h>, <sys/mman.h> or <sys/types.h>. (SIGCHLD, MAP_FAILED, kill): Don't define. (process_command): Use getenv instead of GET_ENVIRONMENT. * genhooks.c: Don't include <string.h>. * ggc-common.c: Don't include <sys/resource.h>, <sys/mman.h> or <sys/types.h>. (MAP_FAILED): Don't define. * ggc-page.c Don't include <sys/mman.h>. (MAP_ANONYMOUS, MAP_FAILED): Don't define. * ggc-zone.c: Don't include <sys/mman.h>. (MAP_ANONYMOUS, MAP_FAILED): Don't define. * graph.c: Include "config.h" instead of <config.h>. * incpath.c (add_env_var_paths): Use getenv instead of GET_ENVIRONMENT. * lto-wrapper.c: Don't include <errno.h>, <signal.h> or "libiberty.h". (SIGCHLD, kill): Don't define. * mips-tfile.c: Don't include <signal.h>. * opts.c: Don't include <signal.h> or <sys/resource.h>. (print_specific_help): Use getenv instead of GET_ENVIRONMENT. * passes.c: Don't include <signal.h>, <sys/resource.h> or <sys/times.h>. * sparseset.h: Don't include <assert.h>. * timevar.c: Don't include <sys/times.h> or <sys/resource.h>. * tlink.c: Don't include "libiberty.h". * toplev.c: Don't include <signal.h> or <sys/times.h>. * tree-mudflap.c: Include "demangle.h" instead of <demangle.h>. * tree-switch-conversion.c: Don't include <signal.h>. * vmsdbgout.c: Don't include <errno.h> or <string.h>. c-family: * c-opts.c (check_deps_environment_vars): Use getenv instead of GET_ENVIRONMENT. * c-pch.c (O_BINARY): Don't define here. * c-pragma.h: Include "cpplib.h" instead of <cpplib.h>. fortran: * gfortran.h (alloca): Don't include definitions. (NULL): Don't define. java: * boehm.c: Include "config.h" instead of <config.h>. * builtins.c: Don't include <stdarg.h>. * class.c: Don't include "stdio.h". (O_BINARY): Don't define here. * jcf-depend.c: Don't include <assert.h>. (jcf_dependency_set_dep_file, jcf_dependency_init, jcf_dependency_write): Use gcc_assert. * jcf-io.c (O_BINARY): Don't define here. * jcf-path.c: Don't include "tm.h". (jcf_path_init): Use getenv instead of GET_ENVIRONMENT. * resource.c: Don't include "stdio.h". (O_BINARY): Don't define here. * verify-impl.c: Don't include <stdio.h>. lto: * lto-endian.h: Delete. * lto-object.c: Don't include "libiberty.h". (O_BINARY): Don't define. * lto.c: Don't include "libiberty.h" or <sys/mman.h>. (O_BINARY): Don't define. From-SVN: r167241
86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
/* Et-forest data structure implementation.
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Copyright (C) 2002, 2003, 2004, 2005, 2007, 2010
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Free Software Foundation, Inc.
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This program 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 3 of the License, or
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(at your option) any later version.
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This program 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 this program; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* This package implements ET forest data structure. Each tree in
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the structure maintains a tree structure and offers logarithmic time
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for tree operations (insertion and removal of nodes and edges) and
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poly-logarithmic time for nearest common ancestor.
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ET tree stores its structure as a sequence of symbols obtained
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by dfs(root)
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dfs (node)
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{
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s = node;
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for each child c of node do
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s = concat (s, c, node);
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return s;
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}
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For example for tree
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1
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/ | \
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2 3 4
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/ |
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4 5
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the sequence is 1 2 4 2 5 3 1 3 1 4 1.
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The sequence is stored in a slightly modified splay tree.
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In order to support various types of node values, a hashtable
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is used to convert node values to the internal representation. */
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#ifndef _ET_TREE_H
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#define _ET_TREE_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* The node representing the node in an et tree. */
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struct et_node
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{
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void *data; /* The data represented by the node. */
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int dfs_num_in, dfs_num_out; /* Number of the node in the dfs ordering. */
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struct et_node *father; /* Father of the node. */
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struct et_node *son; /* The first of the sons of the node. */
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struct et_node *left;
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struct et_node *right; /* The brothers of the node. */
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struct et_occ *rightmost_occ; /* The rightmost occurrence. */
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struct et_occ *parent_occ; /* The occurrence of the parent node. */
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};
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struct et_node *et_new_tree (void *data);
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void et_free_tree (struct et_node *);
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void et_free_tree_force (struct et_node *);
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void et_free_pools (void);
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void et_set_father (struct et_node *, struct et_node *);
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void et_split (struct et_node *);
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struct et_node *et_nca (struct et_node *, struct et_node *);
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bool et_below (struct et_node *, struct et_node *);
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struct et_node *et_root (struct et_node *);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* _ET_TREE_H */
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